SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D. C. 20549



                                    FORM 11-K


         [X]      ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES
                  EXCHANGE ACT OF 1934

For fiscal year ended December 31, 2004

         [  ]     TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE
                  SECURITIES EXCHANGE ACT OF 1934

For the transition period from ________ to _________


Commission File number 1-3247

          A.   Full title of the plan and the address of the plan,  if different
               from that of the issuer named below:


                            THE CORNING INCORPORATED
                     INVESTMENT PLAN FOR UNIONIZED EMPLOYEES

          B.   Name of issuer of the  securities  held  pursuant to the plan and
               the address of its principal executive office:

                              CORNING INCORPORATED
                              ONE RIVERFRONT PLAZA
                                CORNING, NY 14831










Documents filed as part of this report:

       (a)  Index to financial statements filed as part of this report:

            The Statement of Net Assets Available for Benefits as at December
            31,  2004 and  2003,  the  Statement  of  Changes  in Net  Assets
            Available  for Benefits for the year ended  December 31, 2004 and
            supplementary  information,  together with the report  thereon of
            each of the Independent  Registered Public Accounting Firms dated
            June 28, 2005. The required  financial  statement  schedules,  if
            any, are included in the  supplementary  information  referred to
            above and should be read in conjunction  with the above financial
            statements.

       (b)  Exhibits:

            Exhibit 23.1 - The consent of Insero, Kasperski, Ciaccia & Co., P.C.

            Exhibit 23.2 - The consent of PricewaterhouseCoopers LLP













                                   SIGNATURES

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
Benefits  Committee  has duly  caused  this  annual  report  to be signed by the
undersigned thereunto duly authorized.

                                          THE CORNING INCORPORATED
                                          INVESTMENT PLAN FOR
                                          UNIONIZED EMPLOYEES


                                          By: /s/ Deborah G. Lauper          
                                              -------------------------------
                                              Deborah G. Lauper
                                              Chair
                                              Benefits Committee

Date:  June 29, 2005















Corning Incorporated
Investment Plan for
Unionized Employees
Financial Statements and Supplemental Schedule
December 31, 2004 and 2003






Corning Incorporated Investment
Plan for Unionized Employees
Index
December 31, 2004 and 2003
--------------------------------------------------------------------------------


                                                                         Page(s)

Report of Independent Registered Public Accounting Firms...................6-7

Financial Statements

Statements of Net Assets Available for Benefits..............................8

Statement of Changes in Net Assets Available for Benefits....................9

Notes to Financial Statements............................................10-15

Supplemental Schedule*

Schedule of Assets (Held at End of Year)....................................16


*    Other  schedules  required  by Section  2520.103-10  of the  Department  of
     Labor's  Rule and  Regulations  for  Reporting  and  Disclosures  under the
     Employee Retirement Income Security Act of 1974 ("ERISA") have been omitted
     because they are not applicable.







             REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
             -------------------------------------------------------


To the Corning Incorporated  Benefits Plan Committee and the Participants of the
Corning Incorporated Investment Plan for Unionized Employees

We have audited the accompanying  statement of net assets available for benefits
of Corning Incorporated Investment Plan for Unionized Employees (the Plan) as of
December 31, 2004, and the related  statement of changes in net assets available
for  benefits  for the year  then  ended.  These  financial  statements  are the
responsibility  of the Plan's  management.  Our  responsibility is to express an
opinion on these financial statements based on our audit.

We conducted our audit in accordance  with the auditing  standards of the Public
Company Accounting Oversight Board (United States). Those standards require that
we plan and perform the audit to obtain  reasonable  assurance about whether the
financial  statements  are free of  material  misstatement.  An  audit  includes
examining,  on a test basis,  evidence supporting the amounts and disclosures in
the  financial  statements.  An audit also  includes  assessing  the  accounting
principles  used  and  significant  estimates  made  by  management,  as well as
evaluating the overall  financial  statement  presentation.  We believe that our
audit provides a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all  material  respects,  the net  assets  available  for  benefits  of  Corning
Incorporated  Investment  Plan for Unionized  Employees as of December 31, 2004,
and the changes in net assets available for benefits for the year then ended, in
conformity with U.S. generally accepted accounting principles.

Our audit was made for the purpose of forming an opinion on the basic  financial
statements taken as a whole. The supplemental schedule of assets (held at end of
year) as of December  31,  2004,  is  presented  for the  purpose of  additional
analysis and is not a required part of the basic  financial  statements,  but is
supplementary  information  required by the United  States  Department  of Labor
Rules and Regulations for Reporting and Disclosure under the Employee Retirement
Income Security Act of 1974. This supplemental schedule is the responsibility of
the Plan's  management.  The  supplemental  schedule  has been  subjected to the
auditing procedures applied in the audit of the basic financial  statements and,
in our opinion,  is fairly  stated in all  material  respects in relation to the
basic financial statements taken as a whole.

Respectfully Submitted,



Insero, Kasperski, Ciaccia & Co., P.C.
Certified Public Accountants

Rochester, New York
May 20, 2005







             Report of Independent Registered Public Accounting Firm

To the Corning Incorporated Benefits Committee and the
Participants in the Corning Incorporated Investment
Plan for Unionized Employees

In our opinion, the accompanying  statement of net assets available for benefits
("statement of net assets") presents fairly, in all material  respects,  the net
assets  available for benefits of the Corning  Incorporated  Investment Plan for
Unionized  Employees  (the  "Plan") at  December  31,  2003 in  conformity  with
accounting  principles generally accepted in the United States of America.  This
financial  statement  is  the  responsibility  of  the  Plan's  management;  our
responsibility is to express an opinion on this financial statement based on our
audit. We conducted our audit of this statement in accordance with the standards
of  the  Public  Company  Accounting  Oversight  Board  (United  States).  Those
standards  require  that we plan and  perform  the  audit to  obtain  reasonable
assurance  about  whether  the  statement  of net  assets  is free  of  material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and  disclosures  in the  statement  of net  assets,  assessing  the
accounting  principles  used and significant  estimates made by management,  and
evaluating the overall statement of net assets presentation. We believe that our
audit of the  statement  of net  assets  provides  a  reasonable  basis  for our
opinion.


PricewaterhouseCoopers LLP
New York, New York
June 22, 2004







Corning Incorporated Investment
Plan for Unionized Employees
Statements of Net Assets Available for Benefits
December 31, 2004 and 2003
--------------------------------------------------------------------------------


(in thousands of dollars)
                                                      2004              2003
Assets
Interest in Corning Incorporated
    Master Investment Trust                      $   253,784       $   237,735
Loans to participants                                  6,647             6,140
Participant - Contributions Receivable                   165                 -
Employer - Contributions Receivable                       83                 -
                                                 -----------       -----------
     Net assets available for benefits           $   260,679       $   243,875
                                                 ===========       ===========






























   The accompanying notes are an integral part of these financial statements.





Corning Incorporated Investment
Plan for Unionized Employees
Statements of Changes in Net Assets Available for Benefits
Year Ended December 31, 2004
--------------------------------------------------------------------------------



(in thousands of dollars)

Additions to net assets attributed to:
Investment income
    Interest in the Corning Incorporated Master 
      Investment Trust, investment income                       $      22,258
    Interest from participant loans                                       360
                                                                -------------
                                                                       22,618
                                                                -------------
Contributions
    Employer, net of forfeitures                                        4,425
    Participant                                                         8,763
                                                                -------------
                                                                       13,188
                                                                -------------
         Total additions                                               35,806
                                                                -------------
Deductions from net assets attributed to:
Benefits paid directly to participants                                 18,868
Administrative expenses                                                   134
                                                                -------------
         Total deductions                                              19,002
                                                                -------------
         Net increase                                                  16,804
Net assets available for benefits
Beginning of year                                                     243,875
                                                                -------------
End of year                                                     $     260,679
                                                                =============


















   The accompanying notes are an integral part of these financial statements.





Corning Incorporated Investment
Plan for Unionized Employees
Notes to Financial Statements
December 31, 2004 and 2003
--------------------------------------------------------------------------------

(in thousands of dollars)

1.   Description of Plan

     General
     The following brief description of the Corning Incorporated Investment Plan
     for Unionized  Employees  (the "Plan") is provided for general  information
     purposes only.  Participants  should refer to the Plan document and summary
     plan description for a more complete description of the Plan's provisions.

     The Plan is a  defined  contribution  profit-sharing  plan  established  in
     January 1984 and is subject to the  provisions  of the Employee  Retirement
     Income Security Act of 1974 ("ERISA") as amended.

     Administration
     The Plan is administered  by the Corning  Incorporated  Benefits  Committee
     (the "Committee"),  which is appointed by the Board of Directors of Corning
     Incorporated  (the  "Company").  The  Committee  administers  the  Plan  in
     accordance  with its terms and  applicable  laws and has all  necessary and
     appropriate powers to carry out the provisions of the Plan.

     Trustee and Recordkeeper
     The Plan's  assets are held by  JPMorgan  Chase  Bank (the  "Trustee"),  as
     trustee.  The recordkeeper is Affiliated Computer Services,  Inc. (formerly
     known as Mellon Human Resources and Investor Solutions).

     Eligibility
     The Plan covers all union  represented  employees of  participating  unions
     which contract with the Company.  An employee is eligible for participation
     in the Plan upon reaching the age of 18 and completing one year of eligible
     service. Notwithstanding the foregoing, an employee who has attained age 18
     and is  scheduled  on a normal basis to work at least 16 hours a week shall
     be immediately  eligible.  As of December 31, 2004, the union  employees at
     the following locations participated in the Plan:

     Blacksburg, Virginia                           Erwin, New York

     Canton, New York                               Harrodsburg, Kentucky

     Corning Valley, New York                       Oneonta, New York

     Danville, Virginia                             Wilmington, North Carolina

     Participant Accounts
     Each participant's account is credited with the participant's  contribution
     and  allocations of (a) the Company's  contribution  and (b) Plan earnings,
     and charged for administrative expenses.  Trustee and investment management
     fees are deducted from the earnings credited to participants'  accounts.  A
     flat  monthly  fee is charged to each  participant's  account to  subsidize
     administrative  expenses  of  the  Plan  and  is  determined  by  the  plan
     administrator.   Investment   management   fees  are  pro-rated  among  the
     investment  funds as of the last business day of each month. The benefit to
     which a  participant  is entitled is the benefit that can be provided  from
     the participant's vested balance.





Corning Incorporated Investment
Plan for Unionized Employees
Notes to Financial Statements
December 31, 2004 and 2003
--------------------------------------------------------------------------------

(in thousands of dollars)


     Vesting
     Participants  are vested  immediately  in their  contributions  plus actual
     earnings thereon.  Company contributions to the Plan are fully vested after
     three years of service. All Company  contributions become fully vested upon
     total and permanent disability, death or retirement.

     Contributions - Employer
     The Company makes matching contributions as a percentage of a participant's
     first 5% of eligible  pay  contributed  according to years of service as of
     December 31 of the prior year as follows:

     Less than 19 years of service                                          50%

     19 but less than 24 years of service                                   75%

     24 or more years of service                                           100%

     With  respect  to all  employees  eligible  to  participate  in  the  Plan,
     beginning in January of the year the  participant  is expected to reach ten
     years of vesting  service and  irrespective  of whether  such  employee has
     elected  to  contribute  to the Plan,  the  Company  contributes  weekly or
     monthly (based on employee's pay frequency) a supplemental  contribution to
     the Corning Common Stock Fund equal to 1.175% of such  employee's  eligible
     compensation.

     Forfeiture  credits of $603 were used to reduce employer  contributions  in
     2004.  As of December  31,  2004,  the amount of  forfeitures  available to
     reduce  future  employer  contributions  to this  plan and the  other  plan
     sponsored  by  the  Company  with  a  specific   interest  in  the  Corning
     Incorporated Master Investment Trust is $1,477.

     Contributions - Participants
     Generally,  participants  may  contribute  up  to  75%  of  their  eligible
     compensation on a before-tax  basis,  after-tax basis or any combination of
     the two,  to the Plan.  Prior to October 1, 2003,  contributions  of highly
     compensated  participants  were  limited to 1% to 11% of their base  salary
     before tax,  and 1% to 4% of their base salary after tax, not to exceed 15%
     in total. The limits were eliminated July 1, 2004.

     The maximum amount a participant can contribute to the Plan on a before-tax
     basis is $13 per year in 2004 as  adjusted  by the  Internal  Revenue  Code
     ("IRC").  The Plan was amended  effective July 1, 2004 to permit  employees
     who will have  attained age 50 or older  during a given year to  contribute
     additional  before-tax  amounts up to the  prescribed  IRC  limitation  for
     "catch-up contributions."

     Participants  may also elect to have their  contributions  invested  in the
     Corning Common Stock Fund on a before or after tax basis.






Corning Incorporated Investment
Plan for Unionized Employees
Notes to Financial Statements
December 31, 2004 and 2003
--------------------------------------------------------------------------------

(in thousands of dollars)


     Fund Transfers
     Participants  are  allowed  to  transfer  their  accumulated  contributions
     between  funds.  Effective  January 1, 2003,  the Plan was amended to allow
     participants to transfer Company  contributions into and out of the Corning
     Common Stock Fund without  restriction.  This change applied to all Company
     contributions  made to Plan  accounts,  regardless of  participant  age and
     vesting status.

     Payment of Benefits
     Benefit payments are made upon retirement  (i.e., at least age 55 with five
     years of service),  or in the event of a participant's  total and permanent
     disability, death or other termination of employment. A retired participant
     can  elect  to  receive  distributions  in a  lump  sum,  installments,  or
     intermittent  withdrawals.  The  Plan  also  provides  for  withdrawals  by
     participants prior to termination.

     Participant Loans
     Participants  are eligible to obtain loans from the Plan. Loans are limited
     to one loan with a  repayment  term not to exceed  4.5  years,  except  for
     primary  residence  loans in which the term may not exceed  ten years.  The
     maximum  amount of any loan is the lesser of one-half of the vested account
     balance  or $50  (with  a $1  minimum).  The  interest  rate  on a loan  is
     established by the  Committee.  Also,  participants  are charged a loan fee
     which reduces the loan proceeds.

2.   Summary of Significant Accounting Policies

     Basis of Presentation
     The accompanying  financial statements are prepared on the accrual basis of
     accounting.

     Use of Estimates
     The  preparation  of financial  statements  in conformity  with  accounting
     principles  generally  accepted  in the United  States of America  requires
     management  to make  estimates  and  assumptions  that affect the  reported
     amounts of net assets  available for benefits and changes  therein.  Due to
     the  inherent  uncertainty  involved in making  estimates,  actual  results
     reported in future periods could differ from those estimates.

     Basis of Allocation from the Corning Incorporated Master Investment Trust
     The  Plan  has a  specific  interest  in the  Corning  Incorporated  Master
     Investment  Trust (the "Master  Trust") in which another plan  sponsored by
     the Company also  participates.  The Plan's specific interest in the Master
     Trust is  credited  or charged  for  contributions,  transfers  and benefit
     payments  relating  to its  participants.  Realized  gains and  losses  and
     changes in net unrealized  appreciation  or  depreciation  on  investments,
     income from investments and expenses are allocated to the Plan based on the
     Plan's specific interest in the net assets of the Master Trust. At December
     31, 2004 and 2003, the Plan's percentage  interest in the net assets of the
     Master Trust was approximately 16% and 19%, respectively.






Corning Incorporated Investment
Plan for Unionized Employees
Notes to Financial Statements
December 31, 2004 and 2003
--------------------------------------------------------------------------------

(in thousands of dollars)


     Valuation of Master Trust Investments
     Master Trust  investments in mutual and collective trust funds are recorded
     at fair value based upon the net asset value  announced  by the fund on the
     last business day of the year.  Investment contracts are valued at contract
     value, representing  contributions made plus interest at the contract rate,
     less funds  withdrawn and  administrative  expenses.  There are no reserves
     against  contract  values  for  credit  risk  of  the  contract  issuer  or
     otherwise.  Investment contracts are fully benefit-responsive.  The Company
     does not expect any  employer  initiated  events  that may cause  premature
     liquidation  of a contract at market value.  At December 31, 2004 and 2003,
     investment contracts held by the Master Trust were $407,345,  and $421,447,
     respectively,  at contract  value.  The contract  values  approximate  fair
     value. The average yield and crediting interest rates were approximately 6%
     for 2004 and  2003.  The  crediting  interest  rates are based on a formula
     agreed upon with the issuers.

     Interest  is accrued  by the Master  Trust as  earned,  and  dividends  are
     recorded on the ex-dividend date.

     Purchases  and sales of  securities  are  recorded by the Master Trust on a
     trade-date basis.  Realized gains and losses for security  transactions are
     reported  using the  average  cost  method.  Unrealized  gains  and  losses
     represent the difference between the cost and fair value of securities.

     Valuation of Participant Loans
     Participant   loans  are  valued  at  cost  plus  accrued   interest  which
     approximates fair value.

     Payment of Benefits 
     Benefits are recorded when paid.

     Risks and Uncertainties
     The Plan's  investment  securities  are exposed to various  risks,  such as
     changes  in  interest  rates and market  returns.  Due to the level of risk
     associated with certain investments and the level of uncertainty related to
     changes  in the  value of  these  investments,  it is at  least  reasonably
     possible  that  changes in  valuations  in the near term  would  materially
     affect  participants'  account balances and the amounts of such investments
     reported in the Plan's financial statements.






Corning Incorporated Investment
Plan for Unionized Employees
Notes to Financial Statements
December 31, 2004 and 2003
--------------------------------------------------------------------------------

(in thousands of dollars)


3.   Investments

     The following presents the Master Trust's investments at December 31:

                                                   2004                 2003

     Fixed Income Funds                        $     422,902      $     401,922
     Mutual Funds                                    601,636            410,421
     Short-Term Investment Funds                      56,120             25,828
     Corning Common Stock                            497,250            429,456
                                               -------------      -------------
                                               $   1,577,908      $   1,267,627
                                               =============      =============

     Investments  that represent 5% or more of net assets available for benefits
     as of  December  31,  2004 and 2003 were the Plan's  interest in the Master
     Trust.

     During 2004, the Master Trust's investments  (including gains and losses on
     investments  bought and sold, as well as held during the year)  appreciated
     in value by $103,256, as follows:

     Mutual Funds                                                 $      66,192
     Corning Common Stock                                                37,064
                                                                  -------------
                                                                  $     103,256
                                                                  =============

     During 2004, the Master Trust's  investments  earned interest and dividends
     in the amount of $35,135. For 2004, investment expenses totaled $832.

4.   Plan Termination

     Although  it has not  expressed  any intent to do so, the  Company  has the
     right to terminate  the Plan  subject to the  provisions  of ERISA.  In the
     event of Plan termination,  all amounts credited to participants'  accounts
     will  become  100%  vested  and  will be  distributed  to  participants  in
     accordance with Plan provisions.

5.   Tax Status

     The Plan received a favorable  determination  letter dated November 5, 2003
     from the Internal Revenue Service indicating that it meets the requirements
     of  Section  401(a) and  501(a) of the IRC and has  qualified  status as an
     employee  retirement  plan.  The Plan has been amended since  receiving the
     determination  letter.  However,  the  plan  administrator  and the  Plan's
     benefits  counsel  believe that the Plan is designed and is currently being
     operated in compliance with the applicable provisions of the IRC.






Corning Incorporated Investment
Plan for Unionized Employees
Notes to Financial Statements
December 31, 2004 and 2003
--------------------------------------------------------------------------------

(in thousands of dollars)


6.   Subsequent Events

     Effective  January  1,  2005  the  Plan was  amended  to  limit  employees'
     elections  to invest  future  contributions  into the Corning  Common Stock
     Fund. The maximum investment  direction election under this new restriction
     is 20%.

     Effective March 28, 2005, the mandatory lump-sum distribution threshold was
     lowered to $1 to comply with the  restrictions set forth under The Economic
     Growth and Tax Relief Reconciliation Act of 2001 ("EGTRRA").

     Effective  April 1, 2005, the Fidelity Low Priced Stock Fund was eliminated
     as an investment option for participants. In addition, the Fidelity Mid-cap
     Stock Fund was replaced with the Vanguard Mid-cap Index Fund.






Corning Incorporated Investment
Plan for Unionized Employees
Schedule of Assets (Held at End of Year)
December 31, 2004
--------------------------------------------------------------------------------

(in thousands of dollars)


Identity of Issue,       Description of Investment Including
Borrower, Lessor or        Maturity Date, Rate of Interest,           Current
   Similar Party          Collateral, Par, or Maturity Value           Value

 Participant loans      Maturity dates through 2014 and interest      $  6,647
                        rates ranging from 4.75% - 10.50%











                                                                    Exhibit 23.1


            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
            --------------------------------------------------------


We consent to the  incorporation by reference in the  Registration  Statement of
Corning  Incorporated  on Form  S-8 (No.  333-82926  and No.  333-26049)  of our
report,  dated May 20, 2005,  relating to the  financial  statements  of Corning
Incorporated  Investment  Plan for  Unionized  Employees,  which appears in this
Annual Report on Form 11-K.

Respectfully Submitted,



Insero, Kasperski, Ciaccia & Co., P.C.
Certified Public Accountants

Rochester, New York
June 24, 2005






                                                                    Exhibit 23.2


            Consent of Independent Registered Public Accounting Firm

We  hereby  consent  to the  incorporation  by  reference  in  the  Registration
Statements on Form S-8 (Nos. 333-18329 and 333-26049) of Corning Incorporated of
our report dated June 22, 2004 relating to the statement of net assets available
for  benefits  of  the  Corning  Incorporated   Investment  Plan  for  Unionized
Employees, which appears in this Form 11-K.

PricewaterhouseCoopers LLP

New York, New York
June 28, 2005