Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5435366 | Pneumatic tire with tread having good aqua-planing performance and good winter characteristics | Dieter Krenz | 1995-07-25 |
| D354029 | Vehicle tire | Dieter Krenz | 1995-01-03 |
| 4629617 | Method for the preparation of hydrogen sulfide | Reinhold Reck, Friedrich Bittner, Peter Kleinschmit | 1986-12-16 |
| 4555994 | Boiler-heating assembly with oil- and coal-fired ignition burners | Jurgen Kamm, John Norbert | 1985-12-03 |