Inventor · disambiguated record
John D. Fergason
Also filed as: FERGASON JOHN · FERGASON JOHN D · FERGASON JOHN DAVID
25 granted patents·5 pending applications·1,795 citations·filing 1989–2015
97Inventor score
Files withOSD ENVIZION COMPANY7FERGASON PATENT PROPERTIES LLC6LIGHTSWITCH SAFETY SYSTEMS INC5OSD ENVIZION INC3BERMAN ARTHUR L1
Top patents by PatentIndex Score
30 records- 0193US5751258ALiquid crystal lens driver electronics for eye protection, high speed shuttering with consistent performanceOSD ENVIZION INC·Filed 1996·Granted May 12, 1998·163 cites·31 claims
- 0291US5515186AEye protection device for welding helmets which reduces obliquely incident lightOSD ENVIZION COMPANY·Filed 1993·Granted May 7, 1996·104 cites·48 claims
- 0390US5857215AHelmet with high performance head and face protection utilizing molded composite materials and methodILIXCO INC·Filed 1996·Granted Jan 12, 1999·79 cites·65 claims
- 0489US7347551B2Optical system for monitoring eye movementFERGASON PATENT PROPERTIES LLC·Filed 2004·Granted Mar 25, 2008·228 cites·26 claims
- 0589US6554428B2Method and apparatus for adjusting optical device to correspond to eye positionsI O DISPLAY SYSTEMS LLC·Filed 2001·Granted Apr 29, 2003·44 cites·28 claims
- 0688US5248880ADetector system for detecting the occurrence of weldingOSD ENVIZION COMPANY·Filed 1991·Granted Sep 28, 1993·85 cites·44 claims
- 0787US5208688AEye protection device for welding helmetsOSD ENVIZION COMPANY·Filed 1991·Granted May 4, 1993·266 cites·48 claims
- 0886US7342210B2Remote control for auto-darkening lens systems and methodLIGHTSWITCH SAFETY SYSTEMS INC·Filed 2004·Granted Mar 11, 2008·133 cites·43 claims
- 0984US9244279B1Glasses-type augmented reality display systemFERGASON PATENT PROPERTIES LLC·Filed 2014·Granted Jan 26, 2016·6 cites·24 claims
- 1083US5252817ADetector system for detecting the occurrence of welding using detector feedbackOSD ENVIZION COMPANY·Filed 1991·Granted Oct 12, 1993·63 cites·15 claims
- 1181US7161135B2Multi-stage sensor for an auto-darkening lens for use in welding and methodLIGHTSWITCH SAFETY SYSTEMS INC·Filed 2004·Granted Jan 9, 2007·22 cites·36 claims
- 1281US7150047B2Indicator layout on an auto-darkening lens for use in weldingLIGHTSWITCH SAFETY SYSTEMS INC·Filed 2004·Granted Dec 19, 2006·90 cites·45 claims
- 1381US5074647ALiquid crystal lens assembly for eye protectionOPTICAL SHIELDS INC·Filed 1989·Granted Dec 24, 1991·120 cites·39 claims
- 1477US7553021B2Optical system for monitoring eye movementFERGASON PATENT PROPERTIES LLC·Filed 2007·Granted Jun 30, 2009·16 cites·20 claims
- 1573US5347383AHigh speed, low power driving circuit for liquid crystal shutterOSD ENVIZION COMPANY·Filed 1992·Granted Sep 13, 1994·39 cites·37 claims
- 1672US5377032AElectro-optic light shutter and frame assembly with integrated switching mechanismOSD ENVIZION COMPANY·Filed 1993·Granted Dec 27, 1994·117 cites·34 claims
- 1768US7501613B2Light detecting and angle of view compensation for optical devices and methodLIGHTSWITCH SAFETY SYSTEMS INC·Filed 2004·Granted Mar 10, 2009·24 cites·16 claims
- 1866USD353692SWelding lens assemblyOSD ENVIZION COMPANY·Filed 1993·Granted Dec 20, 1994·12 cites·1 claims
- 1964US6067129AWelding lens with integrated display and methodOSD ENVIZION INC·Filed 1996·Granted May 23, 2000·89 cites·60 claims
- 2061US5959705AWelding lens with integrated display, switching mechanism and methodOSD ENVIZION INC·Filed 1996·Granted Sep 28, 1999·81 cites·20 claims
- 2158US7550698B2Light sensor arrangement for auto-darkening lenses and methodLIGHTSWITCH SAFETY SYSTEMS INC·Filed 2004·Granted Jun 23, 2009·13 cites·35 claims
- 2256US9867737B2Auto-darkening filter of welding shieldFERGASON JOHN DAVID·Filed 2015·Granted Jan 16, 2018·1 cites·4 claims
- 2353US9443479B2Image acquisition and display system and method using information derived from an area of interest in a video image implementing system synchronized brightness control and use of metadataFERGASON PATENT PROPERTIES LLC·Filed 2015·Granted Sep 13, 2016·0 cites·14 claims
- 2452US2008180453A1Apparatus and method to minimize blur in imagery presented on a multi-display systemFERGASON JAMES L·Filed 2008·Application pending·0 cites
- 2549US2015138395A1Display System Using Metadata to Adjust Area of Interest and MethodFERGASON PATENT PROPERTIES LLC·Filed 2015·Application pending·0 cites
- 2648US9218770B2Apparatus, method and system to enhance legibility of images shown on a passive display in a bright environment by increasing or maintaining a range of grey levels and decreasing a number of grey levels in that rangeFERGASON JOHN D·Filed 2011·Granted Dec 22, 2015·0 cites·12 claims
- 2744US2011267382A1Dual source backlight unit for use with a display, a display system and methodFERGASON PATENT PROPERTIES LLC·Filed 2011·Application pending·0 cites
- 2843US8954885B2Display system using metadata to adjust area of interest and methodBERMAN ARTHUR L·Filed 2010·Granted Feb 10, 2015·0 cites·13 claims
- 2940US2001043266A1Method and apparatus for viewing stereoscopic three- dimensional imagesFiled 2001·Application pending·0 cites
- 3035US2001038491A1Modular 3-D shutter glasses and methodFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →