Detection Systems, Inc.
Patent Owner
Stats
- 40 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Dec 10, 2002 most recent publication
Details
- 40 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 2,618 Total Citation Count
- Sep 15, 1978 Earliest Filing
- 25 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5077548 Dual technology intruder detection system with sensitivity adjustment after "default"ExpiredJun 29, 90Dec 31, 91[G08B]
4920268 Passive infrared detection system with substantially uniform sensitivity over multiple detection zonesExpiredJan 31, 89Apr 24, 90[G01J]
4864136 Passive infrared detection system with three-element, single-channel, pyroelectric detectorExpiredMay 02, 88Sep 05, 89[G01J]
4764755 Intruder detection system with false-alarm-minimizing circuitryExpiredJul 27, 87Aug 16, 88[G08B]
4746906 Dual technology intruder detection system with modular opticsExpiredJun 30, 86May 24, 88[G08B]
Top Inventors for This Owner
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