Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12326079 | Induction loop cementing progress detection | Songhua Chen, Lonnie Carl Helms | 2025-06-10 |
| 12188343 | Sensor and actuator for autonomously detecting resistivity derivatives of wellbore fluids and closing fluid path | Hector Jesus Elizondo, Ritesh Dharmendra Panchal, Ishwar Dilip Patil, Paul Joseph Jones | 2025-01-07 |
| 12060763 | Cementing apparatus for reverse cementing | Ishwar Dilip Patil, Handoko Tirto Santoso, Lonnie Carl Helms, Frank Acosta, Mayur Narain Ahuja +1 more | 2024-08-13 |
| 12037889 | Permanent electromagnet sensor to detect the end of reverse cementing | Hector Jesus Elizondo, Ritesh Dharmendra Panchal | 2024-07-16 |
| 11965417 | Magnetic sensor assembly having a non-flat shape plug for cement slurry sensing | Hector Jesus Elizondo | 2024-04-23 |
| 11802850 | Magnetic permeability sensor with permanent magnet for downhole sensing | Gregory Thomas Werkheiser, Michael Linley Fripp | 2023-10-31 |
| 11746618 | Cementing apparatus for reverse cementing | Ishwar Dilip Patil, Handoko Tirto Santoso, Lonnie Carl Helms, Frank Acosta, Mayur Narain Ahuja +1 more | 2023-09-05 |
| 11519258 | Pressure testing casing string during reverse cementing operations | Lonnie Carl Helms | 2022-12-06 |
| 11448038 | Reverse cementing valve system and method employing a double flapper valve with sliding sleeve and drillable nose | Michael Linley Fripp, Tor Sigve Saetre, Lonnie Carl Helms | 2022-09-20 |
| 11274519 | Reverse cementing tool | Lonnie Carl Helms, Handoko Tirto Santoso | 2022-03-15 |