Mark James
11Patents
7h-index
10Co-inventors
63Inventor score
Filing activity: Mar 27, 1980 → Aug 18, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4781531A | Centrifugal pump stage with abrasion resistant elements | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4583923A | Bellows latching mechanism for a submersible pump | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6726449B2 | Pump diffuser anti-spin device | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US6854517B2 | Electric submersible pump with specialized geometry for pumping viscous crude oil | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US8016571B2 | Thrust and intake chamber for pump | Mechanical Engineering; Lighting; Heating | 11 | Active |
| US7409997B2 | Electric submersible pump with specialized geometry for pumping viscous crude oil | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4262679A | Closing mechanism for a harvester safety door | Human Necessities | 7 | Expired |
| US4381165A | Clutch for belt drive with means for limiting start-up torque | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US10280929B2 | Multistage centrifugal pump with integral abrasion-resistant axial thrust bearings | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10151315B2 | Horizontal pumping system with primary stage assembly and separate NPSH stage assembly | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11506190B2 | Multi-stage high pressure flanged pump assembly | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.