Walden; John P.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Walden; John P..The latest application filed is for "low noise, high frequency synchronous rectifier".

Company Profile

0.11.0

Walden; John P. - Schenectady NY

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Low noise, high frequency synchronous rectifier Grant 4,903,189 - Ngo , et al. February 20, 1	1990-02-20
Power semiconductor device with main current section and emulation current section Grant 4,783,690 - Walden , et al. November 8, 1	1988-11-08
Parallel resonant induction cooking surface unit Grant 4,426,564 - Steigerwald , et al. January 17, 1	1984-01-17
Frequency shift inverter for variable power control Grant 4,346,332 - Walden August 24, 1	1982-08-24
Inverter power supply Grant 4,070,701 - Harnden, Jr. , et al. January 24, 1	1978-01-24
Method and apparatus for reducing inverter no-load losses Grant 4,012,683 - Ferro , et al. March 15, 1	1977-03-15
Electromagnetically shielded electrical power supply with reduced common mode electromagnetic interference output Grant 3,963,975 - Gauper, Jr. , et al. June 15, 1	1976-06-15
Power Supply Including Inverter Having Multiple-winding Transformer And Control Transistor For Controlling Main Switching Transistors And Providing Overcurrent Protection Grant 3,781,638 - Anderson , et al. December 25, 1	1973-12-25
Output Power Control Of Induction Cooking Inverter Grant 3,761,667 - Walden September 25, 1	1973-09-25
Sensitive Peak Current Detector For Ground Fault Protection Circuits Grant 3,619,723 - Walden November 9, 1	1971-11-09
Recovery System For Short Circuits Through Switching Devices In Power Circuits Grant 3,569,819 - Martzloff , et al. March 9, 1	1971-03-09

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