Inventor · disambiguated record
Robert D. Stephens
Also filed as: STEPHENS ROBERT · STEPHENS ROBERT D · STEPHENS ROBERT DOUGLAS · STEPHENS ROBERT M
6 granted patents·3 pending applications·357 citations·filing 1994–2008
86Inventor score
Files withGM GLOBAL TECH OPERATIONS INC3ENVIROTEST SYSTEMS CORP1GEN MOTORS CORP1SANTA BARBARA RES CENTER1STEPHENS HINSON & ASSOCIATES1
Top patents by PatentIndex Score
9 records- 0193US6216985B1Railway hazard acoustic sensing, locating, and alarm systemFiled 1998·Granted Apr 17, 2001·133 cites·31 claims
- 0291US5591975AOptical sensing apparatus for remotely measuring exhaust gas composition of moving motor vehiclesSANTA BARBARA RES CENTER·Filed 1994·Granted Jan 7, 1997·144 cites·50 claims
- 0387US7700069B2Activation of metal hydridesGM GLOBAL TECH OPERATIONS INC·Filed 2008·Granted Apr 20, 2010·11 cites·9 claims
- 0478US5797682ADevice and method for measuring temperture of vehicle exhaustENVIROTEST SYSTEMS CORP·Filed 1997·Granted Aug 25, 1998·61 cites·15 claims
- 0554US7141216B2System for sono-catalytic production of hydrogenGEN MOTORS CORP·Filed 2003·Granted Nov 28, 2006·2 cites·38 claims
- 0652US2007048563A1System for sono-catalytic production of hydrogenGM GLOBAL TECH OPERATIONS INC·Filed 2006·Application pending·0 cites
- 0747US2004146602A1Continuous production and packaging of perishable goods in low oxygen environmentsFiled 2001·Application pending·0 cites
- 0841US2007178042A1Sodium Alanate Hydrogen Storage MaterialGM GLOBAL TECH OPERATIONS INC·Filed 2006·Application pending·0 cites
- 0934US7652753B1Laser-designated target simulator and method of testing a laser-seeking munition headSTEPHENS HINSON & ASSOCIATES·Filed 2004·Granted Jan 26, 2010·6 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →