Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857216 | Lubricant system for the processing of polyvinyl chloride | Kurt Worschech, Peter Wedl, Guenter Schult | 1989-08-15 |
| 4457850 | Flotation aids and process for non-sulfidic minerals | Holger Tesmann | 1984-07-03 |