Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693263 | Sparger for producing gas bubbles in a liquid | William A. C. Meekel | 1997-12-02 |
| 5643459 | Flotation method and apparatus | Gale L. Hubred, William A. C. Meekel | 1997-07-01 |