Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9845644 | Riser floatation with anti-vibration strakes | Donald Paul Howard, Alan Hugh Summers, Kati Rachelle Andrus | 2017-12-19 |
| 9714547 | Marine drilling riser connector with removable shear elements | Jason Post Curtiss, III | 2017-07-25 |
| 9322221 | Riser floatation with anti-vibration strakes | Donald Paul Howard, Alan Hugh Summers, Kati Rachelle Andrus | 2016-04-26 |
| 8668233 | Threaded connection with perturbed flanks | David Llewellyn Mallis | 2014-03-11 |
| 8443896 | Riser floatation with anti-vibration strakes | Donald Paul Howard, Alan Hugh Summers, Kati Rachelle Andrus | 2013-05-21 |
| 8177262 | Mid-seal for expandable connections | Robert S. Sivley, IV, Gary W. Ward | 2012-05-15 |
| 8171613 | Electrically insulated wedge thread connection | — | 2012-05-08 |
| 7988205 | Wedge thread with torque shoulder | David Llewellyn Mallis | 2011-08-02 |
| 7967959 | Cathodic protection method and apparatus | Donald Paul Howard | 2011-06-28 |
| 7942454 | Threads with perturbations | — | 2011-05-17 |
| 7850211 | Wedge thread connections having a clearance gap volume | Andrew Henry Tate | 2010-12-14 |
| 7828337 | Threaded connection with wedge segments | — | 2010-11-09 |
| 7810849 | Threads with perturbations | — | 2010-10-12 |
| 7717478 | Scalloped wedge threads | — | 2010-05-18 |
| 7690696 | Wedge thread with torque shoulder | David Llewellyn Mallis | 2010-04-06 |
| 7686350 | Mismatched flanks for a wedge thread | Robert S. Sivley, IV | 2010-03-30 |
| 7607333 | Helical groove for a tubular connection | Robert S. Sivley, IV | 2009-10-27 |
| 7578039 | Dope relief method for wedge thread connections | Robert S. Sivley, IV | 2009-08-25 |
| 7575255 | Wedge thread with high-angle metal seal | David Llewellyn Mallis | 2009-08-18 |
| 7562911 | Wedge thread with sealing metal | Philip A. Huff, Keith Pruden | 2009-07-21 |
| 7527304 | Floating wedge thread for tubular connection | David Llewellyn Mallis, Robert S. Sivley, IV | 2009-05-05 |
| 7500698 | Pseudo two-step connection | — | 2009-03-10 |
| 7497481 | Treating method and design method for tubular connections | — | 2009-03-03 |
| 7478842 | Coupled connection with an externally supported pin nose seal | Robert S. Sivley, IV | 2009-01-20 |
| 7458616 | Threads with perturbations | — | 2008-12-02 |