Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H1194 | Riot control agent | Cecil D. Hassell, Sandra D. Smith, Gartung Cheng | 1993-06-01 |
| 5098488 | Composition | Cecil D. Hassell, Sandra D. Smith, Gartung Cheng, Gene V. Tracy | 1992-03-24 |
| 5071497 | Composition for use in flares | Cecil D. Hassell, Sandra D. Smith, Gartung Cheng | 1991-12-10 |
| 5049214 | Aerosol-forming pyrotechonic composition | Cecil D. Hassell, Sandra D. Smith, Gartung Cheng | 1991-09-17 |