Wankel GmbH
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Sep 26, 1995 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 212 Total Citation Count
- Aug 09, 1978 Earliest Filing
- 40 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5452996 Position-independent rotary piston internal combustion engineExpiredDec 08, 93Sep 26, 95[F01C]
5199863 Sealing of an eccentric bearing of a rotary piston internal combustion engineExpiredMay 18, 90Apr 06, 93[F01C]
5100309 Cooling medium pump of a rotary piston internal combustion engineExpiredMay 17, 90Mar 31, 92[F01C]
5067557 Machine unit consisting of a rotary piston internal combustion engine and a rotary piston compressorExpiredFeb 23, 90Nov 26, 91[F25B]
5039289 Rotary piston blower having piston lobe portions shaped to avoid compression pocketsExpiredJan 26, 90Aug 13, 91[F04C]
5011385 Bearing- and drive arrangement of a rotary piston internal combustion engineExpiredMay 17, 90Apr 30, 91[F02B, F01C]
4969809 Lubrication system for an eccentric bearing of a rotary piston internal-combustion engineExpiredNov 23, 88Nov 13, 90[F01C]
4940400 Lubrication system for a rotary-piston internal combustion engineExpiredAug 09, 89Jul 10, 90[F01C]
4886437 Bearing arrangement of an external-axial rotary piston blowerExpiredOct 28, 88Dec 12, 89[F04C]
4867659 Parallel-and external-axial rotary piston blower operating in meshing engagementExpiredDec 04, 86Sep 19, 89[F04C]
4850827 Cooling system of an eccentric shaft of a rotary piston internal combustion engineExpiredAug 05, 87Jul 25, 89[F01C]
4846642 Rotary piston blower with foamed synthetic material surfaces running along roughened metal surfacesExpiredNov 06, 87Jul 11, 89[F04C]
4842494 Refrigerator compressor/internal combustion engine unit of the rotary piston typeExpiredMar 17, 88Jun 27, 89[F04C]
4830591 Lubrication system for a rotary-piston internal combustion engineExpiredMay 24, 88May 16, 89[F01C]
Top Inventors for This Owner
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