Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8371995 | Speed bag apparatus | — | 2013-02-12 |
| 7099037 | N-up printing | G. Phil Clark, Kenneth M. McDonald | 2006-08-29 |
| 6704733 | Distributing electronic books over a computer network | George Clark, Edward Marino, Laurance Brewster | 2004-03-09 |
| 6640445 | Buoyant cordless electric knife and flashlight combination | — | 2003-11-04 |
| 5511291 | Power brake descender for rappelling | — | 1996-04-30 |
| D310409 | Air conditioning unit | Keith R. Allen, Geoffrey Rule | 1990-09-04 |