Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009806 | Calcium hypochlorite article | Harlan B. Johnson, Charles R. Wiedrich, Ernie Allen | 1991-04-23 |
| 4970020 | Calcium hypochlorite composition | Harlan B. Johnson, Charles R. Wiedrich, Ernie Allen | 1990-11-13 |
| 4865760 | Calcium hypochlorite composition | Harlan B. Johnson, Charles R. Wiedrich, Ernie I. Allen | 1989-09-12 |