Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5664733 | Fluid mixing nozzle and method | — | 1997-09-09 |
| 5653298 | Vortex method | Norval Roland Dove, Stephen K. Smith | 1997-08-05 |
| 5632349 | Vortex drill bit | Norval Roland Dove, Stephen K. Smith | 1997-05-27 |