Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342807 | Low density matting and process | Alfred Rasen, Rolf Vollbrecht, Klemens Schenesse | 1982-08-03 |
| 4332686 | Linear polyurethane ultrafilter and processes for use thereof | Klaus Gerlach, Wolfgang Rosener, Ewald Hohm | 1982-06-01 |