Jackson M. Kellner
12Patents
8h-index
5Co-inventors
57Inventor score
Filing activity: Jun 9, 1975 → Dec 21, 1981
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4040494A | Drill director | Fixed Constructions | 65 | Expired |
| US4067596A | Dual flow passage drill stem | Mechanical Engineering; Lighting; Heating | 43 | Expired |
| US4040495A | Drilling apparatus | Fixed Constructions | 33 | Expired |
| US3997008A | Drill director | Fixed Constructions | 22 | Expired |
| US4211291A | Drill fluid powered hydraulic system | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4102552A | Tandem eccentric roller stabilizer for earth boring apparatus | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4082373A | Tandem roller stabilizer for earth boring apparatus | Fixed Constructions | 8 | Expired |
| US4244433A | Safety mechanism for a raise drill | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4522234A | Multiple conduit drill pipe | Fixed Constructions | 8 | Expired |
| US4142593A | Raise drill inner yoke bridge | Fixed Constructions | 3 | Expired |
| US4071285A | Stabilizer | Fixed Constructions | 2 | Expired |
| US4195701A | Raise drill having water passages directed toward the roller cutters | Fixed Constructions | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.