Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CE

Charles Edwards — 33 Patents

Comcast: 14 patents #290 of 4,447Top 7%
WEWestinghouse Electric: 10 patents #186 of 5,139Top 4%
EIElectric Power Research Institute: 3 patents #105 of 1,201Top 9%
MNMonrovia Nursery: 1 patents #20 of 60Top 35%
SDSiemens Power Transmission & Distribution: 1 patents #23 of 57Top 45%
SPSiemens Westinghouse Power: 1 patents #173 of 394Top 45%
Mesa, AZ: #51 of 2,463 inventorsTop 3%
Arizona: #835 of 32,909 inventorsTop 3%
Overall (All Time): #106,464 of 4,157,543Top 3%
33 Patents All Time

Issued Patents All Time

Showing 26–33 of 33 patents

Patent #TitleCo-InventorsDate
4984148 Two-phase bang-bang current control synchronizer 1991-01-08
PP6656 Juniperus sabina cv. Monard 1989-03-07
4686619 Low dissipation capacitor voltage sharing circuit for a static AC/DC converter 1987-08-11
4674025 Multi-inverter control apparatus 1987-06-16
4674024 High voltage modular inverter and control system thereof Derek A. Paice 1987-06-16
4651270 Delay circuit for inverter switches 1987-03-17
4626763 Inverter system with hysteresis transition between pulse width modulation mode and pure square wave mode of operation 1986-12-02
4602201 PWM motor drive with torque determination 1986-07-22