Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12163397 | System and method for hanger and packoff lock ring actuation | Samuel Cheng, Xichang Zhang | 2024-12-10 |
| 11851971 | System and method for hanger and packoff lock ring actuation | Samuel Cheng, Xichang Zhang | 2023-12-26 |
| 11851972 | Bi-directional wellhead annulus packoff with integral seal and hanger lockdown ring | Samuel Cheng, Xichang Zhang | 2023-12-26 |
| 11649689 | Sequential retrieval mechanism for bi-directional wellhead annulus packoff | Samuel Cheng, Xichang Zhang | 2023-05-16 |
| 11201497 | Apparatus and methods to reduce current transient during power mode transfer in uninterruptible power supply | Utsav Ramchandra Patel, Premal Patwa | 2021-12-14 |
| 10663027 | Damper with valve preload limiter | Koenraad Reybrouck, Justin Hendrix | 2020-05-26 |
| 10570983 | Damper with floating piston bleed channel | Koenraad Reybrouck, Justin Hendrix | 2020-02-25 |
| 10536031 | System and method for distributing load current in a UPS system | T Chakridhar Reddy, Utsav Ramchandra Patel | 2020-01-14 |
| 10082837 | 360 degree bi-stable dual pivot hinge | Lawrence Lam | 2018-09-25 |
| 10024092 | 360 degree dual pivot variable torque hinge mechanism | James Tanner, Lawrence James Kerila, Lawrence Lam | 2018-07-17 |
| 9952630 | Power system including a coupling mechanism | Joshua Boilard, Jeffrey Y. Hayashida, Warren Jones | 2018-04-24 |
| 9523226 | 360 degree bi-stable dual pivot hinge | Lawrence Lam | 2016-12-20 |
| 9411365 | 360 degree dual pivot variable torque hinge mechanism | James Tanner, Lawrence James Kerila, Lawrence Lam | 2016-08-09 |
| 6220362 | Conduit and cable bypass for downhole tools | Brian A. Roth | 2001-04-24 |