Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D365872 | Water closet | Olrich Lehmann | 1996-01-02 |
| D358201 | Combined toilet and toilet seat cleaning unit | Ulrich Lehmann | 1995-05-09 |
| 4795189 | Safety system for automotive vehicles | Elmar Vollmer, Helmut Adam | 1989-01-03 |