Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D289414 | Duct design calculator | Derek P. Williams, William C. Chadwick | 1987-04-21 |
| 4427572 | Process for the manufacture of soap | John B. Akers, Jane A. Littler | 1984-01-24 |
| 4337209 | Process for the manufacture of soap | John B. Akers, Jane A. Littler | 1982-06-29 |
| 4259251 | Treatment of effluent | John B. Akers | 1981-03-31 |