Gregory A. Wischstadt

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Streamwood, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Ionization type smoke sensing chamber
- Patent number 6,953,936
- Issue date Oct 11, 2005
- Honeywell International, Inc.
- William A. MacPherson, III
- G08 - SIGNALLING
Information Patent Grant
Obscuration detector
- Patent number 6,822,216
- Issue date Nov 23, 2004
- Honeywell International, Inc.
- Scott Lang
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
Ionization type smoke sensing chamber
- Publication number 20040001006
- Publication date Jan 1, 2004
- William MacPherson
- G08 - SIGNALLING
Information Patent Application
Obscuration detector
- Publication number 20030127585
- Publication date Jul 10, 2003
- Scott Lang
- G08 - SIGNALLING