Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4687255 | Adjustable toddler car seat | Wilfried Klanner, Dieter H. Schmaler, Hermann Wetter, Waldemar Czernakowski | 1987-08-18 |
| 4653809 | Child-passenger safety restraint | Waldemar Czernakowski, Hermann Wetter | 1987-03-31 |