Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Maurer Michael B
2. Date of Event Requiring Statement (Month/Day/Year)
05/17/2012
3. Issuer Name and Ticker or Trading Symbol
UNITED TECHNOLOGIES CORP /DE/ [UTX]
(Last)
(First)
(Middle)
ONE FINANCIAL PLAZA
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President, Sikorsky Aircraft
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

HARTFORD, CT 06101
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 6,017
D
 
Common Stock 3,712
I
By Savings Plan Trustee

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Qualified Stock Option (right to buy) 01/09/2007 01/08/2014 Common Stock 15,000 $ 46.76 D  
Non-Qualified Stock Option (right to buy) 01/03/2008 01/02/2015 Common Stock 11,300 $ 51.5 D  
Restricted Stock Units   (1)   (1) Common Stock 6,215 $ (2) D  
SRP Stock Unit   (3)   (3) Common Stock 293.4662 $ (3) D  
Stock Appreciation Right 01/02/2012 01/01/2019 Common Stock 17,600 $ 54.95 D  
Stock Appreciation Right 01/03/2009 01/02/2016 Common Stock 7,800 $ 56.53 D  
Stock Appreciation Right 01/09/2010 01/08/2017 Common Stock 9,500 $ 62.47 D  
Stock Appreciation Right 01/04/2013 01/03/2020 Common Stock 12,000 (4) $ 71.63 D  
Stock Appreciation Right 01/03/2015 01/02/2022 Common Stock 14,000 (5) $ 74.66 D  
Stock Appreciation Right 01/02/2011 01/01/2018 Common Stock 10,900 $ 75.21 D  
Stock Appreciation Right 01/03/2014 01/02/2021 Common Stock 12,300 (6) $ 78.99 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Maurer Michael B
ONE FINANCIAL PLAZA
HARTFORD, CT 06101
      President, Sikorsky Aircraft  

Signatures

/s/ Charles F. Hildebrand as Attorney-in-Fact 05/17/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The restricted stock units vest in two installments. 3,108 units are scheduled to vest on July 1, 2012 and 3,107 units are scheduled to vest on July 1, 2014.
(2) Each restricted stock unit represents a contingent right to receive one share of United Technologies Corporation common stock.
(3) Each Savings Restoration Plan ("SRP") stock unit is the economic equivalent of one share of UTC common stock. The reported SRP stock units were acquired under UTC's Savings Restoration Plan, an excess benefit plan, and are to be settled upon the reporting person's retirement or other termination of service.
(4) The reporting person was also awarded 3,440 performance share units (PSUs) under the UTC Long Term Incentive Plan. Each PSU has a value equal to one share of UTC common stock. These PSUs vest solely upon achievement of pre-established performance targets for UTC's earnings per share and total shareholder return over a three year time period.
(5) The reporting person was also awarded 3,700 performance share units (PSUs) under the UTC Long Term Incentive Plan. Each PSU has a value equal to one share of UTC common stock. These PSUs vest solely upon achievement of pre-established performance targets for UTC's earnings per share and total shareholder return over a three year time period.
(6) The reporting person was also awarded 3,180 performance share units (PSUs) under the UTC Long Term Incentive Plan. Each PSU has a value equal to one share of UTC common stock. These PSUs vest solely upon achievement of pre-established performance targets for UTC's earnings per share and total shareholder return over a three year time period.

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