Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7645814 | Core material | Alexander Schrey, Rolf Rietzscher | 2010-01-12 |
| 5129372 | Cup tappet body for valve tappets | Karl Seiberth | 1992-07-14 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7645814 | Core material | Alexander Schrey, Rolf Rietzscher | 2010-01-12 |
| 5129372 | Cup tappet body for valve tappets | Karl Seiberth | 1992-07-14 |