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SENTROL INC

Overview
  • Total Patents
    51
About

SENTROL INC has a total of 51 patent applications. Its first patent ever was published in 1980. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and Canada. Its main competitors in its focus markets control, electrical machinery and energy and machines are CETSA LTD, VIGILANT AUTOMATIC FIRE ALARM and INET CONSULTING LTD COMPANY.

Patent filings per year

Chart showing SENTROL INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Marman Douglas H 14
#2 Huckins Charles M 11
#3 Holce Thomas J 10
#4 Abel William E 8
#5 Peltier Mark A 6
#6 Smith Richard A 6
#7 Terrett David S 4
#8 Winters Robert C 4
#9 Johnson Kirk R 4
#10 Bernhardt Christopher A 3

Latest patents

Publication Filing date Title
US5804891A Battery saving switching mechanism
US5635887A Compact rare earth magnet security switch assembly
CA2198483A1 Self-contained, self-adjusting smoke detector
US5656982A Plunger-operated alarm switch assembly
US5777552A Curtain door alarm
US5534849A Time multiplexed, false alarm resistant magnetically actuated security system
US5539381A Fixed threshold and rate of rise heat detector with dynamic thermal reference
US5565852A Smoke detector with digital display
IL110163D0 Glass break detector having reduced susceptibility to false alarms
US5428345A Method of and apparatus for operating a security system to produce an alarm signal
US5546074A Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy
US5233323A Defeat resistant interlock/monitoring system
US5311024A Lens arrangement for intrusion detection device
US5155460A Switch housing with magnetic roller plunger
US5239202A Failsafe interlock switch
US5004879A Switch housing with resilient retainers
US5026990A Method and apparatus for installing infrared sensors in intrusion detection systems
US4943791A Wide gap magnetic reed switch and method for manufacture of same
US4837558A Glass break detector
US4745398A Self-powered sensor for use in closed-loop security system