Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11988064 | Managed pressure drilling control system with continuously variable transmission | Paul R. Northam | 2024-05-21 |
| 11702896 | Flow measurement apparatus and associated systems and methods | Paul R. Northam | 2023-07-18 |
| 11131156 | Managed pressure control system with variable built-in accuracy | Paul R. Northam | 2021-09-28 |
| 10598527 | Differential flow measurement with Coriolis flowmeter | Sang (Paul) Park, David J. Vieraitis | 2020-03-24 |
| 10227838 | Drilling system and method having flow measurement choke | Lev Ring | 2019-03-12 |
| 10174571 | Control of multiple hydraulic chokes in managed pressure drilling | Paul R. Northam | 2019-01-08 |
| 10107052 | Control of hydraulic power flowrate for managed pressure drilling | Paul R. Northam | 2018-10-23 |
| 10094185 | Coriolis flow meter having flow tube with equalized pressure differential | Paul R. Northam, Gerald G. George, Lev Ring | 2018-10-09 |
| 10094186 | Controlled pressure drilling system with flow measurement and well control | Paul R. Northam, Gerald G. George, David J. Vieraitis | 2018-10-09 |
| 10012044 | Annular isolation device for managed pressure drilling | John V. Leba, Mario Munoz Reyna, Gordon Thomson, Chau Nguyen, Jerlib J. Leal | 2018-07-03 |
| 6138778 | Rock bit lubricant relief valve | Randall R. Price | 2000-10-31 |
| 6095264 | Rolling cutter drill bit with stabilized insert holes and method for making a rolling cutter drill bit with stabilized insert holes | — | 2000-08-01 |