Issued Patents All Time
Showing 1–25 of 83 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12297833 | Rubber compound with fiber reinforcement | Robert Bohmer | 2025-05-13 |
| 12292089 | PDM transmission with articulated torque transfer | Jing Lu, Damon T. Landrum, Steven C. Gaare | 2025-05-06 |
| 12084975 | High modulus liners in PDM stators with diameter reliefs compensating for rotor tilt | Timothy Mark Miller, Jing Lu | 2024-09-10 |
| 11885333 | Fiber-reinforced rubber compound useful in PDM stators | Robert Bohmer | 2024-01-30 |
| 11815139 | PDM transmission with sliding contact between convex shaft pins and concave bearings surfaces | Jing Lu, Damon T. Landrum | 2023-11-14 |
| 11808153 | Positive displacement motor stators with diameter reliefs compensating for rotor tilt | Timothy Mark Miller, Jing Lu | 2023-11-07 |
| 11806902 | Elastomeric stator with modified fiber orientation | — | 2023-11-07 |
| 11692911 | Tested products of PDM performance testing device | Timothy Mark Miller, Jing Lu, Jonathan Jared McCalip, Jorge A. Gonzalez | 2023-07-04 |
| 11661972 | PDM transmission with ball-CV torque transfer | Jing Lu, Damon T. Landrum, Steven C. Gaare | 2023-05-30 |
| 11542944 | Rubber compound with high fiber loading useful in PDM stators | Robert Bohmer | 2023-01-03 |
| 11421533 | Tapered stators in positive displacement motors remediating effects of rotor tilt | Timothy Mark Miller, Jing Lu | 2022-08-23 |
| 11015603 | Fiber-loaded rubber compound useful in PDM stators | Robert Bohmer | 2021-05-25 |
| 10989189 | Progressive cavity motor dampening system | Maxim Pushkarev, Shun'etsu Onodera, Samba Ba, Pierre Lauric Dubesset | 2021-04-27 |
| 10934778 | BHA transmission with laminated rubber bearings | Jing Lu | 2021-03-02 |
| 10844663 | Fiber reinforced elastomeric stator | Scott Meng | 2020-11-24 |
| 10837874 | Stall simulator for PDM performance testing device | Timothy Mark Miller, Jing Lu, Jonathan Jared McCalip, Jorge A. Gonzalez | 2020-11-17 |
| 10626866 | Method to improve downhole motor durability | Samba Ba | 2020-04-21 |
| 10612542 | Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps | Brian P. Jarvis, Nigel Wilcox, Brian Joseph Williams, Lance D. Underwood, William Murray +8 more | 2020-04-07 |
| 10480252 | Cutting elements, methods for manufacturing such cutting elements, and tools incorporating such cutting elements | J. Daniel Belnap, Georgiy Voronin, Feng Yu, Youhe Zhang, Yuelin Shen +1 more | 2019-11-19 |
| 10456889 | Shear cutter with improved wear resistance of WC—Co substrate | John Daniel Belnap, Georgiy Voronin | 2019-10-29 |
| 10385694 | Enhanced PDM performance testing device | Timothy Mark Miller, Jing Lu | 2019-08-20 |
| 10355552 | Highly reinforced elastometric stator | Scott Meng | 2019-07-16 |
| 10309395 | Method and apparatus to manufacture a progressive cavity motor or pump | Julien Ramier, Pierre Lauric Dubesset | 2019-06-04 |
| 10294793 | PDM performance simulation and testing | Timothy Mark Miller, Jing Lu | 2019-05-21 |
| 10215176 | Optimized fiber loading of rubber useful in PDM stators | Robert Bohmer | 2019-02-26 |