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Browse by Category: Main > Electrical & Energy
Class Information
Number: 361/172
Name: Electricity: electrical systems and devices > Control circuits for electromagnetic devices > For relays or solenoids > Condition responsive (e.g., external circuit condition) > Code responsive > Including electronic element
Description: Subject matter wherein electronic devices are utilized.


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
7545620 Access protection device for a prohibited area Jun. 9, 2009
7522025 Switchgear with a switching device and an electronic component as well as a supplementary electrical circuit for the switchgear Apr. 21, 2009
7051561 Electronic lock May. 30, 2006
6771479 Method and device for controlling a selection device with solenoids for a weaving machine Aug. 3, 2004
6661635 Electronic drive control apparatus Dec. 9, 2003
6643112 Semiconductor switch-assisted electromechanical relay Nov. 4, 2003
6418003 Control methods for electromagnetic valve actuators Jul. 9, 2002
6282931 Electrically operated actuator and method Sep. 4, 2001
6259362 System for conveying vehicle status information upon exit from a vehicle Jul. 10, 2001
6181256 Remotely operable switch actuator and method for retrofitting a manually operated enclosed electrical disconnect switch Jan. 30, 2001
6169650 Single access control system and method Jan. 2, 2001
6137409 Computer anti-theft system Oct. 24, 2000
6111504 Electronic equipment security and recovery system Aug. 29, 2000
6049448 Security system for roll down doors Apr. 11, 2000
6046681 Remote controlled door lock system Apr. 4, 2000
5999095 Electronic security system Dec. 7, 1999
5979199 Electrically operated actuator Nov. 9, 1999
5940001 Transmission and reception system for controlling locking/unlocking operation of key Aug. 17, 1999
5841363 Locking system especially for automobiles Nov. 24, 1998
5815083 Process for entry of a confidential piece of information and associated terminal Sep. 29, 1998
5796329 Immobilizer and method for initializing the immobilizer Aug. 18, 1998
5781399 Energy efficient control circuit for solenoid actuated locking device Jul. 14, 1998
5774066 Programmably operable system for the delayed locking/unlocking of a security installation Jun. 30, 1998
5679984 Vehicle security system Oct. 21, 1997
5632169 Self powered electronic combination lock having comprehensive monitoring of power levels for various functions May. 27, 1997
5619191 Remote control system for door locks Apr. 8, 1997
5617082 Electronic access control device utilizing a single microcomputer integrated circuit Apr. 1, 1997
5614883 Automotive opto-electric starter interlock Mar. 25, 1997
5559493 Automobile anti-theft device Sep. 24, 1996
5552777 Mechanical/electronic lock and key Sep. 3, 1996
5507162 Eurocylinder-type assembly for electronic lock and key system Apr. 16, 1996
5508569 Battery driven equipment having a locking mechanism Apr. 16, 1996
5508691 Self-contained electronic lock with changeable master and slave codes Apr. 16, 1996
5499157 Multiplexed electronic fuel injection control system Mar. 12, 1996
5430600 Latching relay control circuit Jul. 4, 1995
5402303 Remotely-powdered and remotely-addressed zero-standby-current energy-accumulating high-power solenoid drivers, particularly for systems that are micropowered Mar. 28, 1995
5359322 Method and apparatus for interconnected electronic locks Oct. 25, 1994
5351042 Lock, key and combination of lock and key Sep. 27, 1994
5347267 Electronic lock reset system and method Sep. 13, 1994
5337588 Electronic lock and key system Aug. 16, 1994
5319364 Passive keyless entry system Jun. 7, 1994
5309743 Door unlocking device May. 10, 1994
5268811 Method of controlling and controller for a refrigerator Dec. 7, 1993
5252960 Secure keyless entry system for automatic garage door operator Oct. 12, 1993
5223829 Electric locker apparatus with automatic locker box designation device Jun. 29, 1993
5218338 Coded anti-theft system Jun. 8, 1993
5206782 Surge lock power controller Apr. 27, 1993
5153561 Secured valuable box for beach goers Oct. 6, 1992
5132661 Security system employing optical key shape reader Jul. 21, 1992
5117122 Integrated outlet for communication and electrical power transmissions with noise reducing characteristics May. 26, 1992

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