Inventor · disambiguated record
Stephen Norman
Also filed as: NORMAN STEPHEN · NORMAN STEPHEN T
6 granted patents·221 citations·filing 1974–1998
87Inventor score
Top patents by PatentIndex Score
6 records- 0191US5942470ALubricant compositionsETHYL PETROLEUM ADDITIVES INC·Filed 1998·Granted Aug 24, 1999·72 cites·10 claims
- 0286US5225093AGear oil additive compositions and gear oils containing the sameETHYL PETROLEUM ADDITIVES INC·Filed 1992·Granted Jul 6, 1993·44 cites·33 claims
- 0384US4070370APolyester lubricant additives, their preparation and compositions containing themCOOPER & CO LTD EDWIN·Filed 1974·Granted Jan 24, 1978·30 cites·13 claims
- 0477US5176840AGear oil additive composition and gear oil containing the sameETHYL PETROLEUM ADDITIVES INC·Filed 1990·Granted Jan 5, 1993·28 cites·45 claims
- 0577US4127493APolyester lubricant additives, their preparation and compositions containing themETHYL CORP·Filed 1977·Granted Nov 28, 1978·24 cites·13 claims
- 0675USD400468SFobNORMAN STEPHEN T·Filed 1997·Granted Nov 3, 1998·23 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →