Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9784048 | Drill string stabilizer recovery improvement features | Paul E. Pastusek, Eileen Louvier | 2017-10-10 |
| 8967272 | Annular pressure relief system | Michael E. Mock, Robert S. Sivley, IV | 2015-03-03 |
| 5411301 | Tubing connection with eight rounded threads | James Powers, Rick A. Ashley | 1995-05-02 |
| H1329 | Drill collar connections | Jeffrey R. Bailey, Richard P. McBride, James B. Day | 1994-07-05 |
| 4962579 | Torque position make-up of tubular connections | James B. Day, Alan Hirshberg | 1990-10-16 |
| 4739273 | Apparatus for detecting substantially longitudinal flaws in the end area of a tubular member using magnetic excitation and a scanning sensor | Clifford W. Petersen | 1988-04-19 |
| 4675604 | Computerized and motorized electromagnetic flux leakage internal diameter tubular inspection device | William D. Perry, H. Stanley Silvus, Jr., William C. Gibson, Felix N. Kusenberger | 1987-06-23 |
| 4510447 | Inspection apparatus for electromagnetically detecting flaws in the wall of a pipe | — | 1985-04-09 |
| 4503393 | Method and apparatus for detecting flaws in the threaded end of an elongate member using electromagnetic excitation and an automated scanning sensor | Clifford W. Petersen, Felix N. Kusenberger, William D. Perry, Floyd A. Balter, Cecil M. Teller, II | 1985-03-05 |
| 4431215 | Riser connector | — | 1984-02-14 |