Long-stroke pumping unit
US-12429046-B2 · Sep 30, 2025 · US
This page is not indexed by search engines while we improve data quality.
Robison Clark E patents
Robison Clark E is listed as an inventor on 64 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Robison Clark E |
| Total patents | 64 |
| First publication | Jul 14, 2016 |
| Latest publication | Sep 30, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Pumping unit inspection sensor assembly, system and method
US-2025129708-A1 · Apr 24, 2025 · US
Pumping unit inspection sensor assembly, system and method
US-12203359-B2 · Jan 21, 2025 · US
Long-stroke pumping unit
US-2025012268-A1 · Jan 9, 2025 · US
Long-stroke pumping unit
US-12116992-B2 · Oct 15, 2024 · US
Long-stroke pumping unit
US-2023407862-A1 · Dec 21, 2023 · US
Long-stroke pumping unit
US-11781543-B2 · Oct 10, 2023 · US
Pumping unit bases with driven piles
US-11753789-B2 · Sep 12, 2023 · US
Long-stroke pumping unit
US-2023265844-A9 · Aug 24, 2023 · US
Bearing fault detection for surface pumping units
US-11512582-B2 · Nov 29, 2022 · US
Recent patents
Latest publications not already listed above.
Pumping unit inspection sensor assembly, system and method
US-2022195863-A1 · Jun 23, 2022 · US
Pumping unit inspection sensor assembly, system and method
US-11339643-B2 · May 24, 2022 · US
Pumping unit inspection sensor assembly, system and method
US-2022049596-A1 · Feb 17, 2022 · US
Well pumping system with enclosed rod rotator
US-11187064-B2 · Nov 30, 2021 · US
Apparatus and methods for counterbalancing a pumping unit
US-11174856-B2 · Nov 16, 2021 · US
Hydraulic pumping system with piston displacement sensing and control
US-2021340972-A1 · Nov 4, 2021 · US
Hydraulic pumping system with piston displacement sensing and control
US-11098708-B2 · Aug 24, 2021 · US
Long-stroke pumping unit
US-2021254616-A1 · Aug 19, 2021 · US
Jet pump controller with downhole prediction
US-11078766-B2 · Aug 3, 2021 · US
Pumping unit counterweight balancing
US-11009022-B2 · May 18, 2021 · US
Pumping unit bases with driven piles
US-2021131056-A1 · May 6, 2021 · US
Long stroke pumping unit
US-10962000-B2 · Mar 30, 2021 · US
Pumping unit bases with driven piles
US-10900193-B2 · Jan 26, 2021 · US
Direct drive pumping unit
US-10890175-B2 · Jan 12, 2021 · US
Bearing fault detection for surface pumping units
US-2020408079-A1 · Dec 31, 2020 · US
Long-stroke pumping unit
US-10844852-B2 · Nov 24, 2020 · US
Bearing fault detection for surface pumping units
US-10794173-B2 · Oct 6, 2020 · US
Jet Pump Controller with Downhole Prediction
US-2020308942-A1 · Oct 1, 2020 · US
Hydraulic pumping system with detection of fluid in gas volume
US-10619464-B2 · Apr 14, 2020 · US
Pumping unit counterweight balancing
US-10598172-B2 · Mar 24, 2020 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Weatherford Tech Holdings Llc | 63 |
| Amfields Lp | 6 |
| Weatherford Technology Holdings Llc | 1 |
| Weatherford Lamb Inc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B43/127 | 38 |
| E21B43/126 | 31 |
| F04B47/14 | 27 |
| F04B47/02 | 26 |
| E21B47/009 | 25 |