Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5793216 | Multiphase flowmeter | — | 1998-08-11 |
| D379441 | Tire tread | William Urbano Villamizar, Richard Heinen, Alain Alphonse Z. S. Klepper, Maurice Graas | 1997-05-27 |
| D341113 | Tire tread | Adrien Alphonse Binsfeld, Daniel Scheuren | 1993-11-09 |
| D328267 | Pneumatic tire tread and buttress | — | 1992-07-28 |
| D328268 | Pneumatic tire tread and buttress | — | 1992-07-28 |
| D328269 | Pneumatic tire tread and buttress | Maurice Graas | 1992-07-28 |
| 5088536 | All season type tire tread | Maurice Graas | 1992-02-18 |