David S. Cramer
9Patents
3h-index
4Co-inventors
42Inventor score
Filing activity: Feb 8, 2013 → Apr 15, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9328576B2 | System, method and apparatus for controlling fluid flow through drill string | Fixed Constructions | 11 | Active |
| US9765613B2 | Drilling system and electromagnetic telemetry tool with an electrical connector assembly and associated methods | Emerging Cross-Sectional Technologies | 5 | Active |
| US10107073B2 | System, method and apparatus for controlling fluid flow through drill string | Fixed Constructions | 5 | Active |
| US9187997B2 | System, method and apparatus for reducing shock and vibration in down hole tools | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US10544637B2 | Downhole flow diversion device with oscillation damper | Fixed Constructions | 3 | Active |
| US9976413B2 | Pressure locking device for downhole tools | Fixed Constructions | 1 | Active |
| US11149525B2 | System, method and apparatus for controlling fluid flow through drill string | Fixed Constructions | 0 | Active |
| US11852015B2 | Rotary steerable drilling system | Fixed Constructions | 0 | Active |
| US11041351B2 | Downhole flow diversion device with oscillation damper | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.