Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5570743 | Continuous multi-component slurrying process at oil or gas well | Paul O. Padgett, Stephen F. Crain, Jerry L. Logan, Calvin L. Stegemoeller, Ricky L. Covington +2 more | 1996-11-05 |
| 5522459 | Continuous multi-component slurrying process at oil or gas well | Paul O. Padgett, Stephen F. Crain, Jerry L. Logan, Calvin L. Stegemoeller, Ricky L. Covington +2 more | 1996-06-04 |
| 5452954 | Control method for a multi-component slurrying process | Stephen F. Crain, Paul O. Padgett, Calvin L. Stegemoeller, Vincent P. Rivera, Charles Edward Neal, III | 1995-09-26 |
| 5195861 | Automatic rate matching system | — | 1993-03-23 |
| 5102281 | Automatic rate matching system | — | 1992-04-07 |
| 5004400 | Automatic rate matching system | — | 1991-04-02 |
| 4869299 | Radioactivity shielding transportation assembly and method | — | 1989-09-26 |
| 4846235 | Radioactivity shielding transportation assembly | — | 1989-07-11 |
| 4779186 | Automatic density control system for blending operation | Scott A. Berning | 1988-10-18 |
| 4731531 | Method of logging a well using a non-radioactive material irradiated into an isotope exhibiting a detectable characteristic | — | 1988-03-15 |
| 4712618 | Multiple reservoir transportation assembly for radioactive substances, and related method | Mark A. Priest | 1987-12-15 |
| 4698510 | Multiple reservoir transportation assembly for radioactive substances, and related method | Mark A. Priest | 1987-10-06 |
| 4574880 | Injector unit | — | 1986-03-11 |