Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12222268 | Non-intrusive rheometer for use in well operations | John E. Busteed | 2025-02-11 |
| 12188801 | Real time flow rate and rheology measurement | Pravin Sadashiv Naphade, Kedar M. Deshpande | 2025-01-07 |
| 11988064 | Managed pressure drilling control system with continuously variable transmission | Walter S. Dillard | 2024-05-21 |
| 11702896 | Flow measurement apparatus and associated systems and methods | Walter S. Dillard | 2023-07-18 |
| 11661805 | Real time flow rate and rheology measurement | Pravin Sadashiv Naphade, Kedar M. Deshpande | 2023-05-30 |
| 11131156 | Managed pressure control system with variable built-in accuracy | Walter S. Dillard | 2021-09-28 |
| 10174571 | Control of multiple hydraulic chokes in managed pressure drilling | Walter S. Dillard | 2019-01-08 |
| 10107052 | Control of hydraulic power flowrate for managed pressure drilling | Walter S. Dillard | 2018-10-23 |
| 10094185 | Coriolis flow meter having flow tube with equalized pressure differential | Walter S. Dillard, Gerald G. George, Lev Ring | 2018-10-09 |
| 10094186 | Controlled pressure drilling system with flow measurement and well control | Walter S. Dillard, Gerald G. George, David J. Vieraitis | 2018-10-09 |
| 10006264 | Whipstock assembly having anchor and eccentric packer | Mark C. Glaser, Peter Chan | 2018-06-26 |
| 9140095 | Packer cup for sealing in multiple wellbore sizes eccentrically | Mark C. Glaser | 2015-09-22 |