Phoenix, Arizona
United States
15
2025-12-11
The entities that hold a legal rights for patent applications filed by inventor Shaffer Randall:
Randall Shaffer from Phoenix, US has applied for patents for these inventions. The list has both pending applications and granted patents:
SOLID-STATE DEGAUSS CIRCUIT FOR USE IN AN ELECTROMAGNETIC LOCK
#2 | 2024-08-22POWER CONTROLLER FOR A DOOR LOCK AND METHOD OF CONSERVING POWER
#3 | 2024-07-18Solenoid assembly actuation using resonant frequency current controller circuit
#4 | 2023-04-27SOLENOID ASSEMBLY WITH INCLUDED CONSTANT-CURRENT CONTROLLER CIRCUIT
#5 | 2022-12-01Solenoid assembly actuation using resonant frequency current controller circuit
#6 | 2021-10-14REDUCED POWER CONSUMPTION ELECTROMAGNETIC LOCK
#7 | 2021-02-11Solenoid assembly actuation using resonant frequency current controller circuit
#8 | 2021-02-11Solenoid assembly with included constant-current controller circuit
#9 | 2021-01-14Power controller for a door lock and method of conserving power
#10 | 2019-08-29Solenoid assembly with included constant-current controller circuit
#11 | 2018-03-15Degauss circuit for use in an electronically actuated door lock
#12 | 2017-08-10Reduced power consumption electromagnetic lock
#13 | 2016-10-20Constant-current controller for an inductive load
#14 | 2016-10-20Power controller for a door lock and method of conserving power
#15 | 2016-03-03Power control circuit assembly for an electric door latch mechanism
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