Curtis E. Leitko, Jr.
12Patents
9h-index
20Co-inventors
72Inventor score
Filing activity: Sep 25, 1987 → Nov 17, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5467083A | Wireless downhole electromagnetic data transmission system and method | Fixed Constructions | 134 | Expired |
| US4834193A | Earth boring apparatus and method with control valve | Fixed Constructions | 66 | Expired |
| US4991668A | Controlled directional drilling system and method | Fixed Constructions | 42 | Expired |
| US4880065A | Air motor operated rotary earth drilling tool | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5462077A | Apparatus and method for shutting off fluid flow in a pipe main | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6009960A | Coring tool | Fixed Constructions | 16 | Expired |
| US5624206A | Apparatus and method for supporting pipe main repair tools in an excavation | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4789032A | Orienting and circulating sub | Fixed Constructions | 14 | Expired |
| US6457538B1 | Advanced coring apparatus and method | Fixed Constructions | 13 | Expired |
| US10677006B2 | Vibration assembly and method | Fixed Constructions | 6 | Active |
| US9546518B2 | Power section and transmission of a downhole drilling motor | Fixed Constructions | 1 | Active |
| US9915097B2 | Bearing section of a downhole drilling motor | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.