Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5836839 | Sling and ball game apparatus | — | 1998-11-17 |
| 4456033 | Perforated sheet stock flow restrictor | Alan Keskinen | 1984-06-26 |
| 4398563 | Multi-tube flow restrictor | Alan Keskinen | 1983-08-16 |
| 4352373 | Disc-reel sound suppressor | Alan Keskinen | 1982-10-05 |