Inventor · disambiguated record
Leonard M. Niebylski
Also filed as: NIEBYLSKI LEONARD M
44 granted patents·644 citations·filing 1974–1991
98Inventor score
Top patents by PatentIndex Score
44 records- 0193US4613341AFuel compositionsETHYL CORP·Filed 1985·Granted Sep 23, 1986·53 cites·18 claims
- 0293US3940262AReinforced foamed metalETHYL CORP·Filed 1974·Granted Feb 24, 1976·49 cites·14 claims
- 0386US4191536AFuel compositions for reducing combustion chamber deposits and hydrocarbon emissions of internal combustion enginesETHYL CORP·Filed 1978·Granted Mar 4, 1980·30 cites·21 claims
- 0485US5209979ASilicon carbide coated article with ceramic topcoatETHYL CORP·Filed 1990·Granted May 11, 1993·42 cites·7 claims
- 0585US4604102AFuel compositionsETHYL CORP·Filed 1985·Granted Aug 5, 1986·31 cites·13 claims
- 0685US4541838AFuel compositionsETHYL CORP·Filed 1984·Granted Sep 17, 1985·28 cites·29 claims
- 0783US4266946AGasoline containing exhaust emission reducing additivesETHYL CORP·Filed 1980·Granted May 12, 1981·27 cites·92 claims
- 0879US4317657AGasoline additive fluids to reduce hydrocarbon emissionsETHYL CORP·Filed 1979·Granted Mar 2, 1982·23 cites·7 claims
- 0978US4175927AFuel compositions for reducing hydrocarbon emissionsETHYL CORP·Filed 1978·Granted Nov 27, 1979·22 cites·36 claims
- 1076US4910173APreceramic compositions and ceramic productsETHYL CORP·Filed 1989·Granted Mar 20, 1990·31 cites·12 claims
- 1174US5179048APreceramic compositions and ceramic productsETHYL CORP·Filed 1990·Granted Jan 12, 1993·25 cites·15 claims
- 1270US4005993ANovel gasoline compositionsETHYL CORP·Filed 1976·Granted Feb 1, 1977·18 cites·26 claims
- 1368US4182120AExhaust systemsETHYL CORP·Filed 1977·Granted Jan 8, 1980·21 cites·14 claims
- 1467US3948618AFuel compositions containing glycerides for reducing the plugging of exhaust gas catalystsETHYL CORP·Filed 1975·Granted Apr 6, 1976·16 cites·16 claims
- 1566US4623363AFuel compositionsETHYL CORP·Filed 1985·Granted Nov 18, 1986·15 cites·16 claims
- 1666US4588416AFuel compositionsETHYL CORP·Filed 1985·Granted May 13, 1986·15 cites·17 claims
- 1762US5045399AOrganoborosilazane polymersETHYL CORP·Filed 1988·Granted Sep 3, 1991·15 cites·30 claims
- 1861US4921925AOrganoborosilazane polymersETHYL CORP·Filed 1988·Granted May 1, 1990·11 cites·25 claims
- 1959US5208284ACoating compositionETHYL CORP·Filed 1989·Granted May 4, 1993·14 cites·15 claims
- 2059US5194338APreceramic composition containing silicon based powderETHYL CORP·Filed 1991·Granted Mar 16, 1993·13 cites·13 claims
- 2158US3950145AFuel compositions and additive mixtures containing methanetricarboxylates for reducing exhaust gas catalyst pluggingETHYL CORP·Filed 1975·Granted Apr 13, 1976·12 cites·21 claims
- 2257US5354506APreceramic compositions and ceramic productsALBEMARLE CORP·Filed 1989·Granted Oct 11, 1994·12 cites·13 claims
- 2357US5201947APreceramic compositions and ceramic productsETHYL CORP·Filed 1989·Granted Apr 13, 1993·12 cites·8 claims
- 2457US4588415AFuel compositionsETHYL CORP·Filed 1985·Granted May 13, 1986·11 cites·25 claims
- 2556US4005992ANovel gasoline compositions and additives thereforETHYL CORP·Filed 1976·Granted Feb 1, 1977·12 cites·23 claims
- 2655US3996740AExhaust systemsETHYL CORP·Filed 1975·Granted Dec 14, 1976·11 cites·9 claims
- 2751US5009961APreceramic compositions and ceramic productsETHYL CORP·Filed 1989·Granted Apr 23, 1991·10 cites·13 claims
- 2847US5198488APreceramic compositions and ceramic products with silicon borideETHYL CORP·Filed 1988·Granted Mar 30, 1993·8 cites·14 claims
- 2947US5196059APreceramic compositions and ceramic productsETHYL CORP·Filed 1990·Granted Mar 23, 1993·8 cites·7 claims
- 3046US4082517AFuel composition for reducing exhaust gas catalyst pluggingETHYL CORP·Filed 1975·Granted Apr 4, 1978·8 cites·25 claims
- 3145US4873353APreceramic compositions and ceramic productsETHYL CORP·Filed 1989·Granted Oct 10, 1989·7 cites·20 claims
- 3242US5041337APreceramic compositions and ceramic productsETHYL CORP·Filed 1990·Granted Aug 20, 1991·6 cites·12 claims
- 3339US4052171AFuel compositions and additive mixtures containing methanetricarboxylates for reducing exhaust gas catalyst pluggingETHYL CORP·Filed 1975·Granted Oct 4, 1977·5 cites·40 claims
- 3436US4652272AFuel compositionsETHYL CORP·Filed 1985·Granted Mar 24, 1987·3 cites·9 claims
- 3536US4623362AFuel compositionsETHYL CORP·Filed 1985·Granted Nov 18, 1986·3 cites·22 claims
- 3636US4592761AFuel compositionsETHYL CORP·Filed 1985·Granted Jun 3, 1986·3 cites·10 claims
- 3735US5166001ACeramic coatingsETHYL CORP·Filed 1988·Granted Nov 24, 1992·3 cites·15 claims
- 3834US5013609ACeramic products derived from polycarbosilanes and boroxinesETHYL CORP·Filed 1989·Granted May 7, 1991·3 cites·1 claims
- 3933US4626259AFuel compositionsETHYL CORP·Filed 1985·Granted Dec 2, 1986·2 cites·11 claims
- 4033US4623361AFuel compositionsETHYL CORP·Filed 1985·Granted Nov 18, 1986·2 cites·22 claims
- 4132US5100844APreceramic compositions and ceramic productsETHYL CORP·Filed 1989·Granted Mar 31, 1992·1 cites·1 claims
- 4231US4970282AOrganoborosiloxazane polymersETHYL CORP·Filed 1989·Granted Nov 13, 1990·1 cites·17 claims
- 4331US4623360AFuel compositionsETHYL CORP·Filed 1985·Granted Nov 18, 1986·1 cites·27 claims
- 4431US4594077AFuel compositionsETHYL CORP·Filed 1985·Granted Jun 10, 1986·1 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →