Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682010 | Method for creating a one way visible screening smoke | — | 1997-10-28 |
| H769 | Method of forming a safe visual smoke screen | William G. Rouse, Michael J. Burnham, Erica R. Riley, Robert H. Frickel | 1990-04-03 |
| 4726295 | Grenade arrangement for screening cloud | Leonard R. Sellman, Werner W. Beyth, Raymond R. Fry, Jr., Merlin L. Erickson, Leon R. Milstead +3 more | 1988-02-23 |
| 4704966 | Method of forming IR smoke screen | Leonard R. Sellman, Werner W. Beyth | 1987-11-10 |