Robert E. Grimes
15Patents
11h-index
19Co-inventors
69Inventor score
Filing activity: Apr 11, 1979 → Mar 28, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5467836A | Fixed cutter bit with shear cutting gage | Fixed Constructions | 114 | Expired |
| US5697462A | Earth-boring bit having improved cutting structure | Fixed Constructions | 106 | Expired |
| US5479997A | Earth-boring bit with improved cutting structure | Fixed Constructions | 95 | Expired |
| US5655612A | Earth-boring bit with shear cutting gage | Fixed Constructions | 91 | Expired |
| US5287936A | Rolling cone bit with shear cutting gage | Fixed Constructions | 89 | Expired |
| US6050354A | Rolling cutter bit with shear cutting gage | Fixed Constructions | 74 | Expired |
| US5351768A | Earth-boring bit with improved cutting structure | Fixed Constructions | 65 | Expired |
| US4227255A | Signal classifier | Electricity | 56 | Expired |
| US5542485A | Earth-boring bit with improved cutting structure | Fixed Constructions | 47 | Expired |
| US5323865A | Earth-boring bit with an advantageous insert cutting structure | Fixed Constructions | 41 | Expired |
| US5979575A | Hybrid rock bit | Fixed Constructions | 14 | Expired |
| US6227314A | Inclined leg earth-boring bit | Fixed Constructions | 10 | Expired |
| US12392199B2 | Earth-boring tool geometry and associated apparatus and methods | Fixed Constructions | 0 | Active |
| US11332980B2 | Earth-boring tools having a gauge insert configured for reduced bit walk and method of drilling with same | Fixed Constructions | 0 | Active |
| US10689911B2 | Roller cone earth-boring rotary drill bits including disk heels and related systems and methods | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.