Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11978928 | Plant for recycling used batteries | Christopher Drechsel | 2024-05-07 |
| 5794669 | Container for collection of concentrate | Hans-Dietrich Polaschegg, Walter Pieper | 1998-08-18 |
| 5540265 | Container for collection of concentrate | Hans-Dietrich Polaschegg, Walter Pieper | 1996-07-30 |
| D358646 | Ear wax removal tool | — | 1995-05-23 |