Inventor · Madison Heights, MI, US

David T. Proefke

75Patents
14h-index
79Co-inventors
87Inventor score

Filing activity: Feb 1, 1993 → Jan 19, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US7847709B2 Multimode vehicle location device and method Physics 62 Active
US8706350B2 Secondary sensing for intelligent passive entry passive start polling Performing Operations; Transporting 58 Active
US8970362B2 Vehicle-integrated child presence and reminder system Physics 57 Active
US8725315B2 Bi-directional VHF UHF polling mechanisms for intelligent PEPS polling Physics 52 Active
US7222006B2 Method for determination of pre-authorization engine operation time for a vehicle theft deterrent system Performing Operations; Transporting 36 Expired
US8315775B2 Cruise control systems and methods with adaptive speed adjustment rates Performing Operations; Transporting 29 Active
US9019107B2 Methods and apparatus for detection and reporting of vehicle operator impairment Physics 28 Active
US8196694B2 Vehicle immobilizer methods and apparatus based on driver impairment Performing Operations; Transporting 23 Active
US9797881B2 Method and system for controlling a passive driver impairment detection system in a vehicle Mechanical Engineering; Lighting; Heating 22 Active
US7034654B2 Motor vehicle engine immobilizer security system and method Physics 21 Expired
US7167084B2 Temporary key invalidation for electronic key and locking system Physics 18 Expired
US7778213B2 Method and system for selectively communicating with mobile platforms Electricity 15 Active
US6653747B1 Electronic key system including ignition and transmission control Performing Operations; Transporting 15 Expired
US9710983B2 Method and system for authenticating vehicle equipped with passive keyless system Physics 14 Active
US7647908B1 Methods and systems for remotely starting engines of vehicles with bi-directional control Mechanical Engineering; Lighting; Heating 13 Active
US8547253B2 Method of determining vehicle location from key fob Physics 13 Active
US5396217A Phase shift analysis for vehicle intrusion detection Performing Operations; Transporting 13 Expired
US9855918B1 Proximity confirming passive access system for vehicle Physics 13 Active
US8384358B2 Systems and methods for electric vehicle charging and for providing notification of variations from charging expectations Emerging Cross-Sectional Technologies 11 Active
US8914173B2 Method and system for conditioning an energy storage system (ESS) for a vehicle Emerging Cross-Sectional Technologies 11 Active
US6386447B1 Smart card with card in vehicle warning Physics 10 Expired
US7760108B2 Methods and systems for remotely starting engines of vehicles Mechanical Engineering; Lighting; Heating 10 Active
US8944477B2 Charge port lock assembly for a vehicle Emerging Cross-Sectional Technologies 9 Active
US8193915B2 Multiple transceiver synchronous communication system Physics 9 Active
US8487743B2 Valet keyfob system Emerging Cross-Sectional Technologies 9 Active

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