Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9186573 | Handheld multi-stage puzzle-solving game device | — | 2015-11-17 |
| 7413163 | Rack and pinion wheel drive for an industrial sliding blade damper | Ronald K. Maxwell, David F. McGrath | 2008-08-19 |
| 4746148 | Limiting structure for axial expansion joint | — | 1988-05-24 |