Inventor · disambiguated record
Robert W. Fayfield
Also filed as: FAYFIELD ROBERT W
21 granted patents·552 citations·filing 1978–2005
96Inventor score
Top patents by PatentIndex Score
21 records- 0198US4598198AAutomatic power control for modulated LED photoelectric devicesBANNER ENG·Filed 1984·Granted Jul 1, 1986·136 cites·8 claims
- 0289USD361057SHousing for photoelectric controlFAYFIELD ROBERT W·Filed 1993·Granted Aug 8, 1995·42 cites·1 claims
- 0384US4376450AValve position monitor and control systemSCOVILL MANUFACTURING CO·Filed 1978·Granted Mar 15, 1983·43 cites·4 claims
- 0481US4965548ALevel indicator with alarmBANNER ENG·Filed 1989·Granted Oct 23, 1990·37 cites·24 claims
- 0575US4356393AAlignment indicator for photoelectric scannersBANNER ENG·Filed 1980·Granted Oct 26, 1982·29 cites·15 claims
- 0672US6285021B1Self checking safety switchBANNER ENG·Filed 1999·Granted Sep 4, 2001·29 cites·19 claims
- 0767USD470462SHousing for photoelectric controlBANNER ENG·Filed 2002·Granted Feb 18, 2003·15 cites·1 claims
- 0867US5198664APhotoelectric sensor assembly having compressible and sealing membersBANNER ENG·Filed 1991·Granted Mar 30, 1993·27 cites·15 claims
- 0965US6946643B1Retro-reflective photoelectric sensorBANNER ENG·Filed 2003·Granted Sep 20, 2005·22 cites·15 claims
- 1065USD442563SHousing for photoelectric controlBANNER ENG·Filed 2000·Granted May 22, 2001·14 cites·1 claims
- 1164US7492276B2Micro-processor controlled indicator deviceBANNER ENG·Filed 2005·Granted Feb 17, 2009·2 cites·20 claims
- 1264US5777557ABinary sensor with diagnostic signal superimposed on binary outputBANNER ENG·Filed 1996·Granted Jul 7, 1998·30 cites·6 claims
- 1361USD412316SHousing for photoelectric controlBANNER ENG CORPORATION·Filed 1998·Granted Jul 27, 1999·11 cites·1 claims
- 1460US5644730ADual mode binary sensor for bus operationBANNER ENG·Filed 1995·Granted Jul 1, 1997·37 cites·12 claims
- 1560US4626053ASensing devices with modular interconnection and programmingBANNER ENG·Filed 1984·Granted Dec 2, 1986·17 cites·12 claims
- 1655US4369401AValve position monitor and control systemSCOVILL MANUFACTURING CO·Filed 1980·Granted Jan 18, 1983·16 cites·6 claims
- 1753USD471162SHousing for photoelectric controlBANNER ENG·Filed 2002·Granted Mar 4, 2003·8 cites·1 claims
- 1850US4982107ASourcing or sinking output circuitBANNER ENG·Filed 1989·Granted Jan 1, 1991·8 cites·4 claims
- 1950US4217492AModular photoelectric switchBANNER ENG·Filed 1978·Granted Aug 12, 1980·11 cites·6 claims
- 2044US5087838ASourcing or sinking output circuitBANNER ENG·Filed 1991·Granted Feb 11, 1992·7 cites·4 claims
- 2140US5254846AAnalog photosensor operating on the power from a standard 4-20 ma instrumentation current loopBANNER ENG·Filed 1992·Granted Oct 19, 1993·11 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →