Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4951619 | Self-adjusting hydraulic valve tappet | — | 1990-08-28 |
| 4878569 | Cage | — | 1989-11-07 |
| 4876997 | Self-adjusting hydraulic valve tappet | Helmut Zorn | 1989-10-31 |
| 4825823 | Self-adjusting hydraulic valve tappet | — | 1989-05-02 |
| 4787347 | Self-adjusting hydraulic valve tappet | — | 1988-11-29 |
| 4716865 | Inner element for a hydraulic compensation element | — | 1988-01-05 |
| 4648360 | Hydraulic valve tappet | — | 1987-03-10 |
| 4602409 | Method for securing a funnel-shaped guide member in a self-adjusting hydraulic tappet | — | 1986-07-29 |
| 4579094 | Cup-shaped casing for a hydraulic tappet | Horst Doppling, Walter Speil | 1986-04-01 |
| 4567695 | Method and apparatus for machining roller bearings | — | 1986-02-04 |
| 4450704 | Metal sleeve production | Karl-Heinz Spiess, Jürgen Heyne, Manfred Krost | 1984-05-29 |