David A. Castleman — 13 Patents at Fire Sentry

David A. Castleman has been granted 13 US patents while listed as an inventor at Fire Sentry. The first was granted in 1997 and the most recent in August 2005. David A. Castleman ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list David A. Castleman in Claremont, CA, US.

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Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6927394	Fire detector with electronic frequency analysis	Owen D. Parham	2005-08-09
6518574	Fire detector with multiple sensors	—	2003-02-11
6515283	Fire detector with modulation index measurement	Owen D. Parham, Theodore R. Lapp	2003-02-04
6507023	Fire detector with electronic frequency analysis	Owen D. Parham	2003-01-14
6239435	Fire detector with replacement module	—	2001-05-29
6153881	Fire detector and housing	—	2000-11-28
6078050	Fire detector with event recordation	—	2000-06-20
6064064	Fire detector	—	2000-05-16
6057549	Fire detector with multi-level response	—	2000-05-02
6046452	Process and system for flame detection	Chris A. Selstad, Theodore R. Lapp	2000-04-04
5949235	System and method for detection and control of ungrounded parts in a production coating line	Anthony Brendan Williams, Chris A. Selstad	1999-09-07
5773826	Flame detector and protective cover with wide spectrum characteristics	Chris A. Selstad	1998-06-30
5598099	System and method for coincidence detection of ungrounded parts with detectors located within and outside a production coating area	Don R. Scarbrough, Robert C. Lindrud	1997-01-28	$5,778,000

David A. Castleman — 13 Patents

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