Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428948 | Wellbore trajectory model calibration for directional drilling | Umut Zalluhoglu, Julien Christian Marck, Robert P. Darbe | 2025-09-30 |
| 12385382 | Optimal probabilistic steering control of directional drilling systems | Robert P. Darbe, Alexander Keller, Dongmei Chen | 2025-08-12 |
| 12281562 | Closed loop fully autonomous directional drilling | Min WU, Cili Sun, Robert Alan Friedrich, Ketan C. Bhaidasna, Bipin K. Pillai +2 more | 2025-04-22 |
| 12247474 | Automated vertical-curve-lateral drilling | Robert P. Darbe | 2025-03-11 |
| 12123295 | Slide-rotate ratio mode optimization for mud motor trajectory control | Jian Wu, Robert P. Darbe, Vy Pho | 2024-10-22 |
| 12044117 | Methods for estimating downhole weight on bit and rate of penetration using acceleration measurements | Alexander Keller, Ketan C. Bhaidasna, Jian Wu, Robert P. Darbe, Julien Christian Marck +3 more | 2024-07-23 |
| 12024995 | Perturbation based well path reconstruction | Julien Christian Marck, Robert P. Darbe, Umut Zalluhoglu | 2024-07-02 |
| 12012840 | Techniques for calibrating borehole propagation model for direction drilling in real time | Vy Pho, Umut Zalluhoglu, Robert P. Darbe | 2024-06-18 |
| 11739627 | Error-space feedback controller for drill bit steering | Yuanyan Chen, Robert P. Darbe, Khunsa Hisham, Shahin Tasoujian | 2023-08-29 |
| 11408268 | Autonomous directional drilling directional tendency estimation | Umut Zalluhoglu, Peter Hornblower, Robert P. Darbe, Julien Christian Marck | 2022-08-09 |
| 10883341 | Determining control inputs for drilling a wellbore trajectory in a geologic formation | Umut Zalluhoglu, Julien Christian Valery Marek, Robert P. Darbe | 2021-01-05 |