Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6494761 | Yo-yo and method for its manufacture | — | 2002-12-17 |
| 6213838 | Metal yo-yo and method for manufacture | — | 2001-04-10 |
| 6196890 | Yo-yo and method for its manufacture | — | 2001-03-06 |
| 4895547 | Superior performance yo-yo | — | 1990-01-23 |
| 4604351 | Method for determining bacterial sensitivity to chemical agents | — | 1986-08-05 |
| 4416995 | Method and apparatus for determining bacterial sensitivity | — | 1983-11-22 |