Harald Raab has been granted 18 US patents while listed as an inventor at Fichtel & Sachs . The first was granted in 1981 and the most recent in November 1997. Harald Raab ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list Harald Raab in Schweinfurt, DE.
Patents per Year Patents granted per year, 1981 to 1997 Bar chart with a peak of 3 patents in 1986. peak 3 1981: 1 patents 1981 1986: 3 patents 1986 1987: 3 patents 1987 1989: 1 patents 1989 1990: 1 patents 1990 1991: 2 patents 1991 1993: 3 patents 1993 1995: 1 patents 1995 1996: 1 patents 1996 1997: 2 patents 1997 Issued Patents All Time
Showing 1–18 of 18 patents
Patent # Title Co-Inventors Date
5687828 Friction clutch for a drive train of a motor vehicle and a torsional damper for a friction clutch Norbert Ament 1997-11-18
5630491 Friction clutch for a transmission of a motor vehicle and a clutch disc for a friction clutch Norbert Ament 1997-05-20
5529161 Friction clutch for a transmission of a motor vehicle and a torsional damper for a friction clutch Norbert Ament 1996-06-25
5431269 Transmission for a motor vehicle with a friction clutch having a clutch disc with torsionally locked friction ring Norbert Ament 1995-07-11
5238096 Clutch plate for a motor vehicle friction clutch Norbert Ament 1993-08-24
5230415 Clutch plate for a motor vehicle friction clutch Norbert Ament 1993-07-27
5205389 Clutch disk Norbert Ament 1993-04-27
5000304 Clutch disc Wolfgang Kock , Karl H. Dotter , Norbert Ament 1991-03-19
4998608 Clutch disk with delayed friction device Norbert Ament , Dieter Bernhard 1991-03-12
4966269 Clutch disc having a hub disc and a sintered steel hub blank and a method of producing the clutch disc Manfred Klein , Nikolaus D. Mackert , Karlheinz Hofmann , Gerhard Bittenbring 1990-10-30
4809830 Torque transmitting torsional vibration damper device Bernhard Schierling , Manfred Caspar , Franz Hartig , Norbert Pieper , Wolfgang Grosspietsch 1989-03-07
4669593 Clutch disc for a motor vehicle friction clutch Hilmar Gobel 1987-06-02
4645054 Torsional vibration damper with smooth transition between two spring systems — 1987-02-24
4637500 Hydrodynamic coupling with serially arranged damper units Hilmar Gobel 1987-01-20
4585110 Torsional damper structure for a clutch disc used in a motor-vehicle clutch Hilmar Gobel 1986-04-29
4577743 Clutch disc for a motor vehicle friction clutch Hilmar Gobel 1986-03-25
4569430 Clutch disc for a motor vehicle friction clutch Hilmar Gobel , Bernhard Schierling 1986-02-11
4274525 Clutch disc Helmuth Weissenberger 1981-06-23