Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4945939 | pH control system for an aqueous liquid reservior | David L. Pinnell | 1990-08-07 |
| 4697476 | Planetary worm gear apparatus, and methods of constructing and utilizing same | — | 1987-10-06 |
| RE32304 | Chemical treatment for liquid systems | — | 1986-12-16 |
| D280240 | Shade for light fixtures | Kenneth A. Burket, Gerhard Koenig | 1985-08-20 |
| 4436148 | Chemical treatment for oil wells | — | 1984-03-13 |