Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468479 | Chlorine dioxide generator | Gary W. Kielman, William R. Griffin, Dorman N. Mitchim | 2002-10-22 |
| 6343653 | Chemical injector apparatus and method for oil well treatment | Dorman N Matchim, Micah L Knippers, Gary W. Douglas | 2002-02-05 |