Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9689431 | Seal arrangement having a thrower ring for an anti-friction bearing | Wilhelm Walter, Alexander Happ | 2017-06-27 |
| 8628248 | Centrifugal ring with collecting channel | Wilheim Walter | 2014-01-14 |
| 8500338 | Steering knuckle with pre-sealing | Wilhelm Walter | 2013-08-06 |
| 8240674 | Seal with non-contact adjacent deflector rings | Wilhelm Walter | 2012-08-14 |
| 8152381 | Rolling bearing comprising a device for withdrawing a liquid | Wilhelm Walter, Alexander Haepp | 2012-04-10 |
| 7624989 | Seal with non-contact adjacent deflector rings | Wilhelm Walter | 2009-12-01 |
| 4979899 | Scaler for cleaning teeth | Ludwig Romhild | 1990-12-25 |
| 4854080 | Apparatus for sharpening periodontal instruments | Ludwig Romhild, Peter Reinhard | 1989-08-08 |
| 4820153 | Process and apparatus for cleaning a tooth | Ludwig Romhild, Peter Reinhard | 1989-04-11 |
| 4820154 | Dental instrument with a tool for treating the teeth | Ludwig Romhild, Peter Reinhard | 1989-04-11 |
| 4412729 | Vision testing device | — | 1983-11-01 |