Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5780850 | API estimate using multiple fluorescence measurements | Patrick Lee DeLaune, Kerry K. Spilker | 1998-07-14 | $171,863,000 |
| 5447052 | Microwave hydrocarbon gas extraction system | Patrick Lee DeLaune, Scott A. Hanson, Howard L. McKinzie | 1995-09-05 | $28,197,000 |
| 5199509 | Controlled gas trap system | Scott A. Hanson, Patrick Lee DeLaune, Howard L. McKinzie, Hossein Aghazeynali | 1993-04-06 | $9,867,000 |
| 4188624 | Method and apparatus for monitoring fluid flow through a drill string | Dennis H. Hochsprung, Robert I. Annas, Pat W. Purcell | 1980-02-12 | $7,594,000 |