Inventor · Wilkinsburg, PA, US

John H. Murphy

31Patents
18h-index
33Co-inventors
81Inventor score

Filing activity: Jan 2, 1973 → Mar 23, 2005

Most-cited inventions

PatentTitleAreaCited byStatus
US5073867A Digital neural network processing elements Physics 71 Expired
US4336561A Superconducting transformer Emerging Cross-Sectional Technologies 70 Expired
US5955987A Hybrid radio frequency system with distributed anti-jam capabilities for navigation use Electricity 57 Expired
US6423324B1 Temperature-stable polyamide resin-based composition, and products Human Necessities 56 Expired
US5077677A Probabilistic inference gate Emerging Cross-Sectional Technologies 43 Expired
US4337859A Method of producing a cosmetic product containing a powder cake Emerging Cross-Sectional Technologies 40 Expired
US5297232A Wireless neural network and a wireless neural processing element Physics 39 Expired
US3947571A Lipstick containing microencapsulated oils Human Necessities 31 Expired
US5736960A Atomic clock augmented global positioning system receivers and global positioning system incorporating same Physics 29 Expired
US5407958A Therapeutic skin composition Human Necessities 28 Expired
US4034077A Ointments and powders containing sebacic acid Human Necessities 26 Expired
US5896105A Distributed phased array antenna system Physics 25 Expired
US5058034A Digital neural network with discrete point rule space Physics 23 Expired
US6502790B1 Inclined non-uniform planar spaced constellation of satellites Performing Operations; Transporting 21 Expired
US7270299B1 Space based change detection using common ground track constellations Performing Operations; Transporting 21 Expired
US5233243A Superconducting push-pull flux quantum logic circuits Electricity 21 Expired
US5242247A Apparatus for laying pipe Mechanical Engineering; Lighting; Heating 19 Expired
US4414200A Powder stick composition for topical application Emerging Cross-Sectional Technologies 19 Expired
US4820518A Cosmetic powder product Human Necessities 14 Expired
US4814165A Emulsified hydrated stick product Emerging Cross-Sectional Technologies 13 Expired
US5233242A Superconducting push-pull flux quantum gate array cells Electricity 11 Expired
US5049376A Cosmetic powder bar composition and process for making same Emerging Cross-Sectional Technologies 11 Expired
US4583014A Dynamoelectric machine with a rotor having a superconducting field winding and damper winding Emerging Cross-Sectional Technologies 10 Expired
US5103405A Digital probabilistic reasoning element Emerging Cross-Sectional Technologies 9 Expired
US4184089A Multiple plane spoke structure for a superconducting dynamoelectric machine Emerging Cross-Sectional Technologies 9 Expired

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