Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D616775 | Digital readout tape measure | — | 2010-06-01 |
| 6692387 | Racquet string alignment tool | Michael G. Sullivan | 2004-02-17 |
| D467477 | Racket string straightener | Michael G. Sullivan, John Hunter | 2002-12-24 |