Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6068357 | Hidden photograph storage means | William Keller | 2000-05-30 |
| 5782028 | Concealed safety device for firearms | Stephen G. Simon, Denise E. Reed | 1998-07-21 |
| 5005538 | Extended circumference intake poppet valve system for opening and sealing a single valve seat | — | 1991-04-09 |
| 4957073 | Multiple concentric intake/exhaust valve system for an internal combustion engine | — | 1990-09-18 |
| 4907554 | Multiple intake poppet valve array for a single port | — | 1990-03-13 |
| 4836154 | Poppet valve assembly with apertures | — | 1989-06-06 |