Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9784041 | Drilling rig riser identification apparatus | Nathan Kinert, Leon Ellison, Manfred Worms, Clive Lam, Guy L. McClung, III | 2017-10-10 |
| 7946356 | Systems and methods for monitored drilling | William L. Koederitz, Michael Porche, Graham Watson, Aaron C. Cooke, Leon Ellison +3 more | 2011-05-24 |