John McCaskill
13Patents
6h-index
13Co-inventors
63Inventor score
Filing activity: Oct 4, 1974 → Jul 5, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4185856A | Pipe joint with remotely operable latch | Emerging Cross-Sectional Technologies | 50 | Expired |
| US6980485B2 | Automatic camera tracking using beamforming | Physics | 50 | Expired |
| US4029294A | High pressure valve | Emerging Cross-Sectional Technologies | 41 | Expired |
| US3933338A | Balanced stem fail-safe valve system | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US6883614B2 | Modular actuator system for valves and chokes | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| USRE30115E | Balanced stem fail-safe valve system | General | 13 | Expired |
| US7275606B1 | Solids strainer system for a hydraulic choke | Emerging Cross-Sectional Technologies | 6 | Active |
| US7360611B2 | Flow system for a hydraulic choke solids strainer | Emerging Cross-Sectional Technologies | 5 | Active |
| US7124770B2 | Shear mechanism for backpressure relief in a choke valve | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7231932B2 | Apparatus and methods for servicing a hydraulic choke | Emerging Cross-Sectional Technologies | 2 | Active |
| US7159604B2 | Manipulator system for servicing a hydraulic choke | Emerging Cross-Sectional Technologies | 1 | Expired |
| US12133602B1 | Folding food tray with neck strap | Human Necessities | 0 | Active |
| US11149506B2 | System for controlling wellbore pressure during pump shutdowns | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.