Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8591666 | Method and apparatus for cleaning particle filters in exhaust gas systems of combustion engines | Alfons Urban | 2013-11-26 |
| 4758277 | Additive for friction coating mixtures | Peter Panster | 1988-07-19 |