Stephen A. Hawley

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Bedford, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Infrared obstacle detection in the presence of sunlight
- Patent number 6,812,466
- Issue date Nov 2, 2004
- Prospects, Corp.
- Christopher J. O'Connor
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Obstacle detection sensor using synchronous detection
- Patent number 6,693,271
- Issue date Feb 17, 2004
- Prospects, Corp.
- Christopher J. O'Connor
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for monitoring a powered vent opening with a m...
- Patent number 6,693,273
- Issue date Feb 17, 2004
- Prospects, Corp.
- Christopher J. O'Connor
- G01 - MEASURING TESTING
Information Patent Grant
Obstacle detection sensor using synchronous detection
- Patent number 6,455,839
- Issue date Sep 24, 2002
- Prospects, Corp.
- Christopher J. O'Connor
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for improving the performance of an aperture m...
- Patent number 6,157,024
- Issue date Dec 5, 2000
- Prospects, Corp.
- Eugene R. Chapdelaine
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Infrared obstacle detection in the presence of sunlight
- Publication number 20040056199
- Publication date Mar 25, 2004
- Christopher J. O'Connor
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Obstacle detection sensor using synchronous detection
- Publication number 20020190195
- Publication date Dec 19, 2002
- Christopher J. O'Connor
- G01 - MEASURING TESTING
Information Patent Application
Obstacle detection sensor using synchronous detection
- Publication number 20020074528
- Publication date Jun 20, 2002
- PROSPECTS, CORP.
- Christopher J. O'Connor
- G01 - MEASURING TESTING