Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11060609 | Method for producing a piston ring | Steffen Hoppe, Klaus Meyer | 2021-07-13 |
| 10495225 | Compression piston ring with profiled section | Richard Mittler | 2019-12-03 |
| 10216184 | Apparatus and method for controlling its operation | Victor Allen Vega, Adrian Koh | 2019-02-26 |
| 10072756 | Sliding element, in particular piston ring | Marcus Kennedy, Michael Zinnabold | 2018-09-11 |
| 9458934 | Compression piston ring | — | 2016-10-04 |
| 9404578 | Piston ring with chromium solid particle wear-prevention layer and corrosion-resistant flank surface | Christian Herbst-Dederichs, Waldemar Urbatzka, Stefan Duerdoth | 2016-08-02 |
| 9352427 | Method for producing piston rings | — | 2016-05-31 |
| 9132517 | Method for producing a piston ring | — | 2015-09-15 |
| 9085056 | Method for producing a piston ring | Juergen Gillen | 2015-07-21 |
| 8979094 | Piston ring | — | 2015-03-17 |
| 8857820 | Piston ring | Christian Herbst-Dederichs, Ralf Lammers, Sebastian Bresinski | 2014-10-14 |
| 8770590 | Oil control ring | — | 2014-07-08 |
| 8371585 | Oil wiper ring | Dirk Barenreuter | 2013-02-12 |
| 8058060 | Culture insert carrier, culture insert and culture insert system | Frank T. Stigborg, Klaus Pedersen, Stefan Iskov | 2011-11-15 |
| 7867761 | Tray stack adapted for active gassing | Hans Rasmussen, Arne Johansson | 2011-01-11 |
| 7823745 | Tube, cap and rack for automatic handling of samples | Phil Smith | 2010-11-02 |
| 7425440 | Culture flask | David Malinge, Richard Wales, Stephen Guy | 2008-09-16 |
| 6085922 | Container and closure assembly with tactile indication of closure position | — | 2000-07-11 |
| 5514343 | Microtitration system | Henrik B. Verwohlt, Bjorn Gullak Larsen, Arne Johansson | 1996-05-07 |
| 5310676 | Cell cultivating device | Arne Johansson | 1994-05-10 |