Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D403724 | Putter | — | 1999-01-05 |
| 5176503 | Pond water destratifier | Roy K. Williams | 1993-01-05 |
| 5104589 | Pond water destratifier | Roy K. Williams | 1992-04-14 |
| 4823379 | Telephone ringer | — | 1989-04-18 |
| 4646064 | Volume control device for ringer | Robert J. Janus, Larry D. Lambert | 1987-02-24 |