Patents per Year
Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6065683 | Method and apparatus for conditioning fluid flow | John E. Akin, N. Roland Dove | 2000-05-23 | |
| 5992763 | Nozzle and method for enhancing fluid entrainment | N. Roland Dove, J. Edward Akin | 1999-11-30 | |
| 5941461 | Nozzle assembly and method for enhancing fluid entrainment | J. Edward Akin, N. Roland Dove | 1999-08-24 | |
| 5921476 | Method and apparatus for conditioning fluid flow | John E. Akin, N. Roland Dove | 1999-07-13 | |
| 5854828 | Telephone customer support utility | Thomas J. Kocis, Mark Larson, Charles W. Morrison | 1998-12-29 | $513,060,000 |
| 5785258 | Method and apparatus for conditioning fluid flow | John E. Akin, N. Roland Dove | 1998-07-28 | |
| 5653298 | Vortex method | Norval Roland Dove, W. Gerald Lott | 1997-08-05 | |
| 5632349 | Vortex drill bit | Norval Roland Dove, W. Gerald Lott | 1997-05-27 | |
| 5494124 | Negative pressure vortex nozzle | Norval Roland Dove | 1996-02-27 |