Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9885224 | Burst sleeve and positive indication for fracture sleeve opening | John Murray Tough, Justin P. Vinson, Eric M. Blanton, Raymond C. Shaffer | 2018-02-06 |
| 9593553 | Sliding sleeve having contracting, segmented ball seat | Michael Shane Larisey, Patrick J. Zimmerman, Raymond C. Shaffer, Scott Williamson | 2017-03-14 |
| 9158777 | Augmented reality methods and apparatus | Allen Greaves | 2015-10-13 |
| 8519844 | Augmented reality and location determination methods and apparatus | Allen Greaves | 2013-08-27 |
| 8502659 | Augmented reality and location determination methods and apparatus | Allen Greaves | 2013-08-06 |
| 8493206 | Augmented reality and location determination methods and apparatus | Allen Greaves | 2013-07-23 |