Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6019095 | Method and a device for throwing balls | Klaus Sommer, John Clemons, Wolfgang Jacobsen, Ing Kurt Pirk, Arthur Zerbe +4 more | 2000-02-01 |
| 5437578 | Set of bowling balls having similar properties and cores therefor | William Wasserberger | 1995-08-01 |
| 4438868 | Envelope vending machine | — | 1984-03-27 |