Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6273062 | Method and apparatus for compensating the influence of different air capacities of engine cylinders | — | 2001-08-14 |
| 4582647 | Process for the preparation of pure 2,6-dichlorobenzonitrile | Walter Pollwein | 1986-04-15 |