Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8771375 | Antimicrobial tennis ball | Roger P. Tyzzer | 2014-07-08 |
| 7632197 | System for confirming hit locations on tennis court boundaries | Roger P. Tyzzer, Ray L. Hauser | 2009-12-15 |
| 4468860 | Measuring device | — | 1984-09-04 |