Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8105183 | Celluloid-free table-tennis ball | Thomas Wollheim | 2012-01-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8105183 | Celluloid-free table-tennis ball | Thomas Wollheim | 2012-01-31 |