Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7073794 | Leak detection means | Eberhard Bock, Erich Prem | 2006-07-11 |
| 6520506 | Radial shaft seal | Hans Reinhardt, Rolf Stadler | 2003-02-18 |
| 6367812 | Radial shaft-sealing ring and process for manufacturing the same | Hans Reinhardt | 2002-04-09 |
| 6357325 | Sealing arrangement | — | 2002-03-19 |
| 6170834 | Sealing arrangement | — | 2001-01-09 |
| 5648614 | Integrated circuit and seal | Rainer Martsfeld, Thomas Kuhlmann, Hanno Wentzler | 1997-07-15 |
| 5645283 | Radial shaft seal having dust lip with notches | Rolf Drucktenhengst | 1997-07-08 |
| 5642889 | Sealing ring | Franz Pauler, Ulrich Dahlhaus | 1997-07-01 |
| 5485473 | Method and system for testing an integrated circuit featuring scan design | Ulich Diebold, Peter Rost, Manfred Schmidt, Otto A. Torreiter, Klaus Wagner-Drebenstedt | 1996-01-16 |
| 5271629 | Radial shaft sealing ring | Ulrich Dahlhaus | 1993-12-21 |
| 5190073 | Pressure regulating inlet-and-outlet valve | — | 1993-03-02 |
| 5139275 | Shaft seal | Peter Ehrmann, Gerhard Kilthau | 1992-08-18 |
| 5096207 | Cartridge seal with dual lipped secondary seal | Reinhold Seeh, Rolf Drucktenhengt | 1992-03-17 |
| 5092611 | Ferrofluid seal for a shaft | Roland Ehmsen, Ulrich Fruedenberg, Fritz Heck | 1992-03-03 |
| 5044642 | Annular seal | Karl-Heinz Spies, Gerhard Kilthau | 1991-09-03 |
| 4948152 | Shaft seal | Gerhard Kilthau, Karl-Heinz Spies, Peter Freilaender, Toni Seethaler | 1990-08-14 |
| 4940248 | Seal for a magnetizable shaft | Gerhard Kilthau, Karl-Heinz Spies, Peter Freilaender, Toni Seethaler | 1990-07-10 |
| 4886281 | Sealing ring having a sealing surfacer with a recessional annular projection | Peter Ehrmann, Karl-Heinz Spies | 1989-12-12 |