George Schoenfelder

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Batavia, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Miniature photoelectric sensing chamber
- Patent number 6,521,907
- Issue date Feb 18, 2003
- Pittway Corporation
- Thomas W. Shoaff
- G08 - SIGNALLING
Information Patent Grant
Aspirated detector
- Patent number 6,166,648
- Issue date Dec 26, 2000
- Pittway Corporation
- Jim Wiemeyer
- G08 - SIGNALLING
Information Patent Grant
Aspirated detector
- Patent number 5,926,098
- Issue date Jul 20, 1999
- Pittway Corporation
- Jim Wiemeyer
- G08 - SIGNALLING
Information Patent Grant
Outer electrode with improved smoke entry
- Patent number 4,618,777
- Issue date Oct 21, 1986
- Pittway Corporation
- George A. Schoenfelder
- G08 - SIGNALLING
Information Patent Grant
Combustion products detector with accelerated test
- Patent number 4,539,556
- Issue date Sep 3, 1985
- Pittway Corporation
- Stanley S. Dederich
- G08 - SIGNALLING
Information Patent Grant
Smoke detector with test apparatus
- Patent number 4,374,329
- Issue date Feb 15, 1983
- Pittway Corporation
- George A. Schoenfelder
- G08 - SIGNALLING