Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6428007 | Environmentally safe projectable targets | Rupert Spencer | 2002-08-06 |
| 6394457 | Safe projectable target | Rupert Spencer | 2002-05-28 |
| 5947475 | Environmentally safe projectable targets | Rupert Spencer | 1999-09-07 |
| 5350233 | Mixing apparatus and method for forming a blended composite material from a plurality of components | Donald W. Sonntag | 1994-09-27 |