Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8430758 | Constant velocity joint with small radial movements of the balls | Heiko Harnischfeger | 2013-04-30 |
| 7854658 | Counter track joint for large articulation angles | Heiko Harnischfeger | 2010-12-21 |
| 7632189 | Counter track joint for large articulation angles | Heiko Harnischfeger | 2009-12-15 |
| 7591730 | Fixed ball joint with turned track cross-sections | Heiko Harnischfeger | 2009-09-22 |
| 7025683 | Constant velocity ball joint with ball pairs whose tracks are located on symmetrical planes | — | 2006-04-11 |
| 6918838 | Longitudinal plunging unit with a hollow profiled journal | Herbert Cermak, Arne Berger | 2005-07-19 |
| 6802781 | Longitudinal plunging unit having a material with a uniform wall thickness | Herbert Cermak, Arne Berger | 2004-10-12 |
| 6497622 | Constant velocity fixed joint with cross-groove tracks | Peter Bilz, Frank Braun, Russell Osborn | 2002-12-24 |
| 6390928 | Driveshaft adapted to a preferred torque transmitting direction | Hans-Heinrich Welschof, Thomas Schaffner, Joachim Prölb | 2002-05-21 |
| 6319133 | Constant velocity universal joint | Friedhelm John | 2001-11-20 |
| 6306044 | Homocinetic ball-and-socket joint with optimized roll error | — | 2001-10-23 |
| 6299544 | Double offset joint with centering means for cage | Friedhelm John | 2001-10-09 |
| 6273825 | Monobloc joint with centering means | Wolfgang Lobel, Hans-Heinrich Welschof | 2001-08-14 |
| 6179717 | Driveshafts having convoluted boot seals with ventilation for joint interior | — | 2001-01-30 |
| 5944612 | VL joint for long plunging distance and large articulation angle | — | 1999-08-31 |
| 5795233 | Universal joint | Markus Eschbach, Hans-Heinrich Welschof | 1998-08-18 |
| 5765837 | Convoluted boot with inner annual ribs | — | 1998-06-16 |
| 5704840 | Universal joint | Markus Eschbach, Hans-Heinrich Welschof | 1998-01-06 |
| 5685777 | Constant velocity universal ball joint | — | 1997-11-11 |
| 5660494 | Connection for the harmonic transmission of torque | Friedhelm John | 1997-08-26 |
| 5536098 | Bearing assembly for a wheel hub/constant velocity universal joint unit | — | 1996-07-16 |
| 5536101 | Drive assembly for slide-on hub | Rudolf Beier | 1996-07-16 |
| 5507693 | Constant velocity universal joint | Volker Bergmann, Dieter Burghardt, Norbert Hofmann, Michael Ricks, Hans-Heinrich Welschof | 1996-04-16 |
| 5419741 | Convoluted boot device | — | 1995-05-30 |
| 5376049 | Tripod joint | Hans-Heinrich Welschof, Michael Ricks, Norbert Hofmann, Friedhelm John, Hans Wormsbacher +1 more | 1994-12-27 |