Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Dual sensor electromagnetic door lock system

Dual sensor electromagnetic door lock system

US Patent 4893852 · Granted Jan 16, 1990

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Systems and methods for automated analysis2024
Chain monitoring systems and methods2024
Communication system and methods providing push-to-talk (PTT) operation with enh2023
Sample preparation cartridges and methods for using same2021
Communication systems with body worn plate design2021
Rotary switch for a multi-channel communication device2021
Systems and methods for automated analysis2020
Automatic battery fluid reminder system for vehicles with flooded lead acid batt2018
Automated ball valve and actuator2012
Methods and apparatus for maintaining rotor assembly tip clearances2007
Ramped tip shelf blade2003
Internally cooled blade tip shroud2001