Inventor
CLARK E. ROBISON
Inventor
US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling47%
F04BPositive-displacement machines for liquids26%
G08BSignalling systems, e.g. personal calling systems11%
E02DFoundations5%
F16MFrames, casings or beds of engines, machines or apparatus, not specific to engines, machines or apparatus provided for elsewhere5%
G01MTesting static or dynamic balance of machines or structures5%
PatentTitleYear
12,429,046Long-stroke pumping unit202512,203,359Pumping unit inspection sensor assembly, system and method202512,116,992Long-stroke pumping unit202411,781,543Long-stroke pumping unit202311,753,789Pumping unit bases with driven piles202311,512,582Bearing fault detection for surface pumping units202211,339,643Pumping unit inspection sensor assembly, system and method202211,187,064Well pumping system with enclosed rod rotator202111,174,856Apparatus and methods for counterbalancing a pumping unit2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to WEATHERFORD TECH HOLDINGS LLC (9)· patent assignee history
2021–2025Based in US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WEATHERFORD TECH HOLDINGS LLC | 9 | 2021–2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 9 | 2021–2025 |