Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4939962 | Method and apparatus for influencing the motion of a movable member | Helmut Wittkopp, Gerhardt Kluge | 1990-07-10 |
| 4802285 | Method and apparatus for ascertaining the radial location of a new wheel profile to be produced by a reprofiling operation | Herbert Ligacz, Alfred Heimann, Helmut Wittkopp | 1989-02-07 |
| 4711146 | Method for reprofiling profiles of wheel sets | Dieter Lung, Werner Kluft, Jochen Fabry, Helmut Wittkopp, Theodor Dombrowski | 1987-12-08 |
| 4693146 | Method and apparatus for achieving chip separation while machining work pieces | Theodor Dombrowski | 1987-09-15 |
| 4667546 | Method for achieving chip separation while machining work pieces | Theodor Dombrowski | 1987-05-26 |