Stuart Schaaf
15Patents
8h-index
17Co-inventors
69Inventor score
Filing activity: Sep 2, 1997 → May 3, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6057784A | Apparatus and system for making at-bit measurements while drilling | Fixed Constructions | 123 | Expired |
| US7234543B2 | Systems and methods for directionally drilling a borehole using a continuously variable transmission | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6837315B2 | Rotary steerable drilling tool | Fixed Constructions | 38 | Expired |
| US6840336B2 | Drilling tool with non-rotating sleeve | Fixed Constructions | 37 | Expired |
| US7004263B2 | Directional casing drilling | Fixed Constructions | 27 | Expired |
| US6547010B2 | Annular pack having mutually engageable annular segments | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6280874A | Annular pack | Emerging Cross-Sectional Technologies | 21 | Expired |
| US8639423B2 | Power split device and method | Emerging Cross-Sectional Technologies | 9 | Active |
| US10301877B2 | Drilling system, biasing mechanism and method for directionally drilling a borehole | Fixed Constructions | 6 | Active |
| US9556678B2 | Drilling system, biasing mechanism and method for directionally drilling a borehole | Fixed Constructions | 6 | Active |
| US6610441B2 | Annular pack | Emerging Cross-Sectional Technologies | 5 | Expired |
| US10895113B2 | Drilling system, biasing mechanism and method for directionally drilling a borehole | Fixed Constructions | 1 | Active |
| US9464701B2 | Fluid movement systems including a continuously variable transmission | Emerging Cross-Sectional Technologies | 0 | Active |
| US10443692B2 | Fluid movement systems including a continuously variable transmission | Emerging Cross-Sectional Technologies | 0 | Active |
| US10006526B2 | Fluid movement systems including a continuosly variable transmission | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.