Ownership Submission
FORM 5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Form 3 Holdings Reported
Form 4 Transactions Reported
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL STATEMENT OF CHANGES IN 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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1. Name and Address of Reporting Person *
Chapman Timothy L
2. Issuer Name and Ticker or Trading Symbol
STERIS CORP [STE]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
SR VP & Grp. Pres., Healthcare
(Last)
(First)
(Middle)

5960 HEISLEY ROAD
3. Statement for Issuer's Fiscal Year Ended (Month/Day/Year)
03/31/2009
(Street)


MENTOR, OH 44060
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Reporting
(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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned at end of Issuer's Fiscal Year
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Amount (A) or (D) Price
Common Shares, No Par Value 03/14/2007   L(1) 39 A $ 25.01 31,889 D  
Common Shares, No Par Value 06/14/2007   L(1) 34 A $ 29.88 31,923 D  
Common Shares, No Par Value 09/13/2007   L(1) 44 A $ 27.39 31,967 D  
Common Shares, No Par Value 12/13/2007   L(1) 43 A $ 28.28 32,010 D  
Common Shares, No Par Value 03/12/2008   L(1) 47 A $ 25.74 32,057 D  
Common Shares, No Par Value 06/12/2008   L(1) 39 A $ 30.7 32,096 D  
Common Shares, No Par Value 09/12/2008   L(1) 44 A $ 37.1 32,140 D  
Common Shares, No Par Value 12/10/2008   L(1) 60 A $ 27.05 32,200 (2) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 2270 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned at End of Issuer's Fiscal Year
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
(A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Chapman Timothy L
5960 HEISLEY ROAD
MENTOR, OH 44060
      SR VP & Grp. Pres., Healthcare  

Signatures

Dennis P. Patton, Authorized Representative under Power of Attorney 05/14/2009
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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 350 Common Shares reported on this Form 5 were acquired by Mr. Chapman through a Dividend Reinvestment Plan through his personal broker. Mr. Chapman inadvertently did not report the 39 Common Shares acquired through this Plan in the Issuer's Fiscal Year Ended March 31, 2007 as well as the 168 Common Shares acquired through this Plan in the Issuer's Fiscal Year Ended March 31, 2008. Mr. Chapman is timely reporting the 143 Common shares acquired during the Issuer's Fiscal Year Ended March 31, 2009.
(2) 11,850 of these Common Shares are restricted. The restrictions on these 11,850 Common Shares lapse as follows: 4,000 on September 7, 2009, 4,000 on July 27, 2010, and 3,850 on May 23, 2011.

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