Assignee
WANKEL GMBH
DE·45 granted patents·376 citations·filing 1975–1993
Top patents by PatentIndex Score
45 records- 0190US3993029AMethod of operating a compound supercharged rotary piston engineWANKEL GMBH·Filed 1975·Granted Nov 23, 1976·28 cites·3 claims
- 0289US4487561ARotary piston compressorWANKEL GMBH·Filed 1982·Granted Dec 11, 1984·46 cites·2 claims
- 0379US4781541AExternal axial rotary piston blower with noise suppressing transfer portsWANKEL GMBH·Filed 1987·Granted Nov 1, 1988·28 cites·4 claims
- 0476US4846642ARotary piston blower with foamed synthetic material surfaces running along roughened metal surfacesWANKEL GMBH·Filed 1987·Granted Jul 11, 1989·25 cites·8 claims
- 0574US4127364AHeat pump unitWANKEL GMBH·Filed 1977·Granted Nov 28, 1978·26 cites·4 claims
- 0663US4464102AExternal axis rotary piston compressorWANKEL GMBH·Filed 1982·Granted Aug 7, 1984·18 cites·18 claims
- 0759US4080120AInner seal for rotary piston engines and method of making sameWANKEL GMBH·Filed 1976·Granted Mar 21, 1978·8 cites·5 claims
- 0854US4056338ARotary piston engineWANKEL GMBH·Filed 1976·Granted Nov 1, 1977·7 cites·13 claims
- 0950US5039289ARotary piston blower having piston lobe portions shaped to avoid compression pocketsWANKEL GMBH·Filed 1990·Granted Aug 13, 1991·15 cites·9 claims
- 1049US4127369APressure valve for a rotary piston compressorWANKEL GMBH·Filed 1977·Granted Nov 28, 1978·10 cites·3 claims
- 1147US4830591ALubrication system for a rotary-piston internal combustion engineWANKEL GMBH·Filed 1988·Granted May 16, 1989·10 cites·4 claims
- 1247US4793304AArrangement for cooling the piston of a rotary piston internal combustion engineWANKEL GMBH·Filed 1985·Granted Dec 27, 1988·10 cites·3 claims
- 1347US4165209AExternal axle rotary piston machineWANKEL GMBH·Filed 1977·Granted Aug 21, 1979·5 cites·1 claims
- 1447US4063535ARotary piston internal combustion engineWANKEL GMBH·Filed 1976·Granted Dec 20, 1977·8 cites·6 claims
- 1547US4032268ARotary piston engineWANKEL GMBH·Filed 1975·Granted Jun 28, 1977·5 cites·10 claims
- 1641US4850827ACooling system of an eccentric shaft of a rotary piston internal combustion engineWANKEL GMBH·Filed 1987·Granted Jul 25, 1989·7 cites·4 claims
- 1739US4940400ALubrication system for a rotary-piston internal combustion engineWANKEL GMBH·Filed 1989·Granted Jul 10, 1990·8 cites·10 claims
- 1839US4207039ASeal grid system for a rotary piston mechanismWANKEL GMBH·Filed 1978·Granted Jun 10, 1980·3 cites·4 claims
- 1938US4943217ADelivery valve of a rotary piston compressorWANKEL GMBH·Filed 1989·Granted Jul 24, 1990·7 cites·4 claims
- 2037US4971533APiston of a rotary piston engineWANKEL GMBH·Filed 1989·Granted Nov 20, 1990·5 cites·7 claims
- 2137US4779578AFluid-cooled housing of a rotary piston internal combustion engineWANKEL GMBH·Filed 1986·Granted Oct 25, 1988·5 cites·7 claims
- 2236US5199863ASealing of an eccentric bearing of a rotary piston internal combustion engineWANKEL GMBH·Filed 1990·Granted Apr 6, 1993·6 cites·6 claims
- 2336US5100309ACooling medium pump of a rotary piston internal combustion engineWANKEL GMBH·Filed 1990·Granted Mar 31, 1992·7 cites·3 claims
- 2436US5011385ABearing- and drive arrangement of a rotary piston internal combustion engineWANKEL GMBH·Filed 1990·Granted Apr 30, 1991·6 cites·7 claims
- 2536US4824125AAxial seal for a rotary-piston engineWANKEL GMBH·Filed 1988·Granted Apr 25, 1989·5 cites·5 claims
- 2636US4801254ACooling system for a rotary piston internal combustion engineWANKEL GMBH·Filed 1986·Granted Jan 31, 1989·5 cites·15 claims
- 2734US5067557AMachine unit consisting of a rotary piston internal combustion engine and a rotary piston compressorWANKEL GMBH·Filed 1990·Granted Nov 26, 1991·8 cites·3 claims
- 2833US4886437ABearing arrangement of an external-axial rotary piston blowerWANKEL GMBH·Filed 1988·Granted Dec 12, 1989·3 cites·7 claims
- 2933US4867659AParallel-and external-axial rotary piston blower operating in meshing engagementWANKEL GMBH·Filed 1986·Granted Sep 19, 1989·4 cites·7 claims
- 3033US4808096AAxial sealing system of a rotary piston engineWANKEL GMBH·Filed 1987·Granted Feb 28, 1989·3 cites·5 claims
- 3133US4715799AComposite construction of casing for rotary piston engineWANKEL GMBH·Filed 1986·Granted Dec 29, 1987·3 cites·7 claims
- 3232US5049049ARotary piston internal combustion engineWANKEL GMBH·Filed 1990·Granted Sep 17, 1991·4 cites·3 claims
- 3332US4842494ARefrigerator compressor/internal combustion engine unit of the rotary piston typeWANKEL GMBH·Filed 1988·Granted Jun 27, 1989·7 cites·4 claims
- 3432US4797076AInner seal of a rotary piston engineWANKEL GMBH·Filed 1986·Granted Jan 10, 1989·3 cites·5 claims
- 3532US4790734ARadial seal of a rotary piston engineWANKEL GMBH·Filed 1987·Granted Dec 13, 1988·2 cites·5 claims
- 3632US4786241ARadial seal of a rotary piston engineWANKEL GMBH·Filed 1987·Granted Nov 22, 1988·2 cites·3 claims
- 3731US4969809ALubrication system for an eccentric bearing of a rotary piston internal-combustion engineWANKEL GMBH·Filed 1988·Granted Nov 13, 1990·3 cites·7 claims
- 3831US4717319AHousing of a rotary piston internal combustion engineWANKEL GMBH·Filed 1986·Granted Jan 5, 1988·3 cites·4 claims
- 3930US4793778AEccentric shaft of a rotary piston internal combustion engineWANKEL GMBH·Filed 1986·Granted Dec 27, 1988·2 cites·5 claims
- 4029US5452996APosition-independent rotary piston internal combustion engineWANKEL GMBH·Filed 1993·Granted Sep 26, 1995·3 cites·9 claims
- 4129US4797078ABearing arrangement of an external-axial rotary piston blowerWANKEL GMBH·Filed 1987·Granted Jan 10, 1989·0 cites·1 claims
- 4228US5011387ARotary piston internal combustion engineWANKEL GMBH·Filed 1989·Granted Apr 30, 1991·4 cites·7 claims
- 4327US4822253AMachine installation for a heat pumping plantWANKEL GMBH·Filed 1986·Granted Apr 18, 1989·1 cites·10 claims
- 4426US4758140ARotary piston blower having offset shafts and a tapered housing to compensate for thermal deformationWANKEL GMBH·Filed 1987·Granted Jul 19, 1988·3 cites·3 claims
- 4524US4643438AAxial oil seal of a rotary piston engineWANKEL GMBH·Filed 1986·Granted Feb 17, 1987·5 cites·4 claims
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