Dick L. Knox
29Patents
14h-index
43Co-inventors
81Inventor score
Filing activity: Sep 30, 1982 → Aug 26, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6167965A | Electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores | Mechanical Engineering; Lighting; Heating | 245 | Expired |
| US6587037B1 | Method for multi-phase data communications and control over an ESP power cable | Electricity | 60 | Expired |
| US5722812A | Abrasion resistant centrifugal pump | Emerging Cross-Sectional Technologies | 51 | Expired |
| US6676447B1 | Pothead connector with elastomeric sealing washer | Electricity | 39 | Expired |
| US6956310B1 | Motor bearing for submersible motors | Electricity | 26 | Expired |
| US6566774B2 | Vibration damping system for ESP motor | Electricity | 26 | Expired |
| US7492069B2 | Pressurized bearing system for submersible motor | Electricity | 25 | Active |
| US7188669B2 | Motor cooler for submersible pump | Fixed Constructions | 23 | Expired |
| US5189328A | Laminated motor bearing for electrical submersible pump | Electricity | 20 | Expired |
| US5670931A | Method and apparatus for transmitting data over a power cable utilizing a magnetically saturable core reactor | Electricity | 19 | Expired |
| US4589492A | Subsea well submersible pump installation | Electricity | 18 | Expired |
| US4491778A | Motor variable frequency drive | Electricity | 17 | Expired |
| US7607896B2 | Systems and methods for power ride-through in variable speed drives | Electricity | 15 | Active |
| US8141646B2 | Device and method for gas lock detection in an electrical submersible pump assembly | Mechanical Engineering; Lighting; Heating | 14 | Active |
| US8400093B2 | Device, computer program product and computer-implemented method for backspin detection in an electrical submersible pump assembly | Electricity | 14 | Active |
| US8138622B2 | System and method for an AC powered downhole gauge with capacitive coupling | Physics | 14 | Active |
| US4790373A | Cooling system for electrical components | Electricity | 14 | Expired |
| US7161456B2 | Systems and methods for driving large capacity AC motors | Electricity | 13 | Expired |
| US8314583B2 | System, method and program product for cable loss compensation in an electrical submersible pump system | Electricity | 11 | Active |
| US4492523A | Toroidal inductor for a pressure sensor in a submersible pump | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US8287246B2 | Systems and methods for automatic forward phasing determination in a downhole pump system | Mechanical Engineering; Lighting; Heating | 10 | Active |
| US8419390B2 | Electrical submersible pump system connection adapter | Emerging Cross-Sectional Technologies | 9 | Active |
| US7950906B2 | Insulated bearings for downhole motors | Electricity | 8 | Active |
| US4477230A | Continuous pressure and temperature readout for submersible pumps | Physics | 6 | Expired |
| US6587054B2 | Electrical submersible pump cable | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.