Anthony R. Dopf
17Patents
10h-index
18Co-inventors
65Inventor score
Filing activity: Mar 19, 1998 → Apr 11, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6158532A | Subassembly electrical isolation connector for drill rod | Mechanical Engineering; Lighting; Heating | 63 | Expired |
| US6956791B2 | Apparatus for receiving downhole acoustic signals | Physics | 56 | Expired |
| US6050353A | Subassembly electrical isolation connector for drill rod | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US6902414B2 | Harsh environment rotatable connector | Electricity | 45 | Expired |
| US6572152B2 | Subassembly electrical isolation connector for drill rod | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US7839719B2 | Fluid erosion protection washer for rotating shaft in MWD tool | Fixed Constructions | 28 | Active |
| US8648733B2 | Electromagnetic telemetry assembly with protected antenna | Fixed Constructions | 12 | Active |
| US8174929B2 | Spindle for mud pulse telemetry applications | Fixed Constructions | 12 | Active |
| US6367323B1 | Dynamic pressure device for oil drill systems | Fixed Constructions | 12 | Expired |
| US7900968B2 | Electrical isolation connector for electromagnetic gap sub | Emerging Cross-Sectional Technologies | 12 | Active |
| US8308199B2 | Electrical isolation connector for electromagnetic gap sub | Emerging Cross-Sectional Technologies | 10 | Active |
| US8270251B2 | Acoustic isolator | Physics | 4 | Active |
| US9022144B2 | Drill bit assembly having electrically isolated gap joint for measurement of reservoir properties | Fixed Constructions | 1 | Active |
| US7821178B2 | Brush and brush housing arrangement to mitigate hydrodynamic brush lift in fluid-immersed electric motors | Electricity | 1 | Active |
| US8634274B2 | Spindle for mud pulse telemetry applications | Fixed Constructions | 0 | Active |
| US7532540B2 | Fluid erosion protection washer for rotating shaft in MWD tool | Fixed Constructions | 0 | Active |
| US8624464B2 | Brush and brush housing arrangement to mitigate hydrodynamic brush lift in fluid-immersed electric motors | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.