Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474176 | Fluid flow measuring devices and methods for determining fluid flow rates in soils | Jason C. Ritter, Anderson L. Ward, Randy R. Kirkham | 2002-11-05 |
| 5183355 | Method of draining water through a solid waste site without leaching | Russell L. Treat, Greg A. Whyatt | 1993-02-02 |
| 5103654 | Tensiometer with removable wick | Melvin D. Campbell | 1992-04-14 |
| 4899047 | Method and apparatus for selectively detecting one of two immiscible liquids in the presence of the other liquid | John W. Cry, Randy R. Kirkham, John F. McBride, Carver S. Simmons | 1990-02-06 |