Issued Patents 2025
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12410678 | Expandable element assembly with external rigid support element to isolate well interval | Marcus Ray Hudson, Wei Zhang | 2025-09-09 |
| 12410685 | Using fluid pill for heat transfer downhole | David Earl Ball, Marcus Ray Hudson, James T. Cernosek, Jay Paul Deville | 2025-09-09 |
| 12338733 | Method and apparatus for downhole fluid microsample collection with staged hydraulic actuation | James T. Cernosek | 2025-06-24 |
| 12241332 | Isolation device with multiple pressure stages to isolate well interval | David Earl Ball, Marcus Ray Hudson, James T. Cernosek, Anthony Herman Van Zuilekom | 2025-03-04 |