Inventor
NIEBYLSKI LEONARD M
US45 patents
⚠️ This page may combine multiple inventors who share the name “NIEBYLSKI LEONARD M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ETHYL CORP
44 patentsUS5209979AMay 11, 1993
Silicon carbide coated article with ceramic topcoat
ETHYL CORP42 citations92
US5179048AJan 12, 1993
Preceramic compositions and ceramic products
ETHYL CORP25 citations92
US4910173AMar 20, 1990
Preceramic compositions and ceramic products
ETHYL CORP31 citations92
US4613341ASep 23, 1986
Fuel compositions
ETHYL CORP53 citations92
US4604102AAug 5, 1986
Fuel compositions
ETHYL CORP31 citations92
US4541838ASep 17, 1985
Fuel compositions
ETHYL CORP28 citations92
US4191536AMar 4, 1980
Fuel compositions for reducing combustion chamber deposits and hydrocarbon emissions of internal combustion engines
ETHYL CORP30 citations92
US3940262AFeb 24, 1976
Reinforced foamed metal
ETHYL CORP49 citations92
US4317657AMar 2, 1982
Gasoline additive fluids to reduce hydrocarbon emissions
ETHYL CORP23 citations82
US4266946AMay 12, 1981
Gasoline containing exhaust emission reducing additives
ETHYL CORP27 citations82
US4182120AJan 8, 1980
Exhaust systems
ETHYL CORP21 citations82
US4175927ANov 27, 1979
Fuel compositions for reducing hydrocarbon emissions
ETHYL CORP22 citations82
US5208284AMay 4, 1993
Coating composition
ETHYL CORP14 citations74
US5201947AApr 13, 1993
Preceramic compositions and ceramic products
ETHYL CORP12 citations74
US5198488AMar 30, 1993
Preceramic compositions and ceramic products with silicon boride
ETHYL CORP8 citations74
US5196059AMar 23, 1993
Preceramic compositions and ceramic products
ETHYL CORP8 citations74
US5194338AMar 16, 1993
Preceramic composition containing silicon based powder
ETHYL CORP13 citations74
US5045399ASep 3, 1991
Organoborosilazane polymers
ETHYL CORP15 citations74
US5009961AApr 23, 1991
Preceramic compositions and ceramic products
ETHYL CORP10 citations74
US4921925AMay 1, 1990
Organoborosilazane polymers
ETHYL CORP11 citations74
US4873353AOct 10, 1989
Preceramic compositions and ceramic products
ETHYL CORP7 citations74
US4623363ANov 18, 1986
Fuel compositions
ETHYL CORP15 citations74
US4588416AMay 13, 1986
Fuel compositions
ETHYL CORP15 citations74
US4588417AMay 13, 1986
Fuel compositions
ETHYL CORP10 citations74
US4588415AMay 13, 1986
Fuel compositions
ETHYL CORP11 citations74
US3996740ADec 14, 1976
Exhaust systems
ETHYL CORP11 citations74
US3950145AApr 13, 1976
Fuel compositions and additive mixtures containing methanetricarboxylates for reducing exhaust gas catalyst plugging
ETHYL CORP12 citations74
US3948618AApr 6, 1976
Fuel compositions containing glycerides for reducing the plugging of exhaust gas catalysts
ETHYL CORP16 citations74
US4082517AApr 4, 1978
Fuel composition for reducing exhaust gas catalyst plugging
ETHYL CORP8 citations73
US4005992AFeb 1, 1977
Novel gasoline compositions and additives therefor
ETHYL CORP12 citations73
US4005993AFeb 1, 1977
Novel gasoline compositions
ETHYL CORP18 citations73
US5166001ANov 24, 1992
Ceramic coatings
ETHYL CORP3 citations63
US5041337AAug 20, 1991
Preceramic compositions and ceramic products
ETHYL CORP6 citations63
US5013609AMay 7, 1991
Ceramic products derived from polycarbosilanes and boroxines
ETHYL CORP3 citations63
US4652272AMar 24, 1987
Fuel compositions
ETHYL CORP3 citations63
US4626259ADec 2, 1986
Fuel compositions
ETHYL CORP2 citations63
US4623361ANov 18, 1986
Fuel compositions
ETHYL CORP2 citations63
US4623362ANov 18, 1986
Fuel compositions
ETHYL CORP3 citations63
US4592761AJun 3, 1986
Fuel compositions
ETHYL CORP3 citations63
US4052171AOct 4, 1977
Fuel compositions and additive mixtures containing methanetricarboxylates for reducing exhaust gas catalyst plugging
ETHYL CORP5 citations63
US5100844AMar 31, 1992
Preceramic compositions and ceramic products
ETHYL CORP1 citations52
US4970282ANov 13, 1990
Organoborosiloxazane polymers
ETHYL CORP1 citations52
US4623360ANov 18, 1986
Fuel compositions
ETHYL CORP1 citations52
US4594077AJun 10, 1986
Fuel compositions
ETHYL CORP1 citations52