Jay M. Eppink
32Patents
19h-index
14Co-inventors
78Inventor score
Filing activity: Mar 13, 1985 → Jan 4, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6213226A | Directional drilling assembly and method | Fixed Constructions | 188 | Expired |
| US7172038B2 | Well system | Fixed Constructions | 175 | Expired |
| US5474334A | Coupling assembly | Mechanical Engineering; Lighting; Heating | 150 | Expired |
| US6923273B2 | Well system | Fixed Constructions | 125 | Expired |
| US6494272B1 | Drilling system utilizing eccentric adjustable diameter blade stabilizer and winged reamer | Fixed Constructions | 117 | Expired |
| US6227312A | Drilling system and method | Fixed Constructions | 96 | Expired |
| US6488104B1 | Directional drilling assembly and method | Fixed Constructions | 61 | Expired |
| US6920944B2 | Apparatus and method for drilling and reaming a borehole | Fixed Constructions | 55 | Expired |
| US6659200B1 | Actuator assembly and method for actuating downhole assembly | Fixed Constructions | 46 | Expired |
| US5090497A | Flexible coupling for progressive cavity downhole drilling motor | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US7083010B2 | Apparatus and method for drilling and reaming a borehole | Fixed Constructions | 34 | Expired |
| US4676725A | Moineau type gear mechanism with resilient sleeve | Fixed Constructions | 30 | Expired |
| US6598687B2 | Three dimensional steerable system | Fixed Constructions | 27 | Expired |
| US4636151A | Downhole progressive cavity type drilling motor with flexible connecting rod | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6997272B2 | Method and apparatus for increasing drilling capacity and removing cuttings when drilling with coiled tubing | Fixed Constructions | 25 | Expired |
| US6607044B1 | Three dimensional steerable system and method for steering bit to drill borehole | Fixed Constructions | 20 | Expired |
| US7195083B2 | Three dimensional steering system and method for steering bit to drill borehole | Fixed Constructions | 20 | Expired |
| US5620056A | Coupling for a downhole tandem drilling motor | Fixed Constructions | 20 | Expired |
| US4679638A | Downhole progressive cavity type drilling motor with flexible connecting rod | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US6843332B2 | Three dimensional steerable system and method for steering bit to drill borehole | Fixed Constructions | 19 | Expired |
| US7383897B2 | Downhole steering tool having a non-rotating bendable section | Fixed Constructions | 14 | Expired |
| US6325162A | Bit connector | Fixed Constructions | 13 | Expired |
| US7681665B2 | Downhole hydraulic control system | Fixed Constructions | 12 | Active |
| US7104345B2 | Downhole rotatable-shaft connector assembly and method | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US7878272B2 | Forced balanced system | Fixed Constructions | 11 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.