Inventor · Elk Mound, WI, US

Fred Schleifer

26Patents
15h-index
15Co-inventors
78Inventor score

Filing activity: Feb 3, 1995 → Jul 2, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US8768483B2 System and method for receiving telemetry data from an implantable medical device Emerging Cross-Sectional Technologies 82 Active
US5621629A Switching power supply for use in an electronic energy meter having a wide range of input voltages Electricity 79 Expired
US5457621A Switching power supply having voltage blocking clamp Electricity 50 Expired
US6556871B2 System and method for receiving telemetry data from an implantable medical device Emerging Cross-Sectional Technologies 46 Expired
US7106189B2 Tracking system and methods thereof Physics 44 Expired
US7016739B2 System and method for removing narrowband noise Emerging Cross-Sectional Technologies 42 Expired
US6622044B2 System and method for removing narrowband noise Emerging Cross-Sectional Technologies 37 Expired
US7203545B2 System and method for receiving telemetry data from an implantable medical device Emerging Cross-Sectional Technologies 37 Expired
US6940268B2 Apparatus for metering at least one type of electrical power over a predetermined range of service voltages Electricity 27 Expired
US7339805B2 Power supply having voltage blocking clamp Electricity 26 Active
US7180282B2 Apparatus for metering at least one type of electrical power over a predetermined range of service voltages Electricity 26 Expired
US7626499B2 Tracking system and methods thereof Physics 26 Active
US5903145A Universal electronic energy meter for use with 4-wire standard services Electricity 22 Expired
US6587811B2 System and method for delay line testing Electricity 20 Expired
US6035002A Digital super-regenerative detector RF receiver Electricity 18 Expired
US6229295A Apparatus for metering at least one type of electrical power over a predetermined range of service voltages Electricity 15 Expired
US7551965B2 System and method for removing narrowband noise Emerging Cross-Sectional Technologies 15 Active
US6097182A Electrical energy meter for 3-wire delta service Electricity 10 Expired
US6118828A Digital super-regenerative detector RF receiver Electricity 8 Expired
US8489197B2 System and method for receiving telemetry data from an implantable medical device Emerging Cross-Sectional Technologies 4 Active
US6470083B1 Telecommunications off-hook and intrusion detection method and apparatus Electricity 4 Expired
US8279062B2 Tracking system and methods thereof Physics 2 Active
US8018353B2 Method and apparatus for zone selection in area monitoring devices Physics 1 Active
US12283789B2 Electronics driver for pulsed discharge Electricity 0 Active
US9781796B1 Brightness control system for decorative light strings Electricity 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.