Michael Charles Sheppard
21Patents
11h-index
17Co-inventors
72Inventor score
Filing activity: Jan 7, 1986 → Dec 13, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6405798B1 | Downhole tool and method | Fixed Constructions | 107 | Expired |
| US4760735A | Method and apparatus for investigating drag and torque loss in the drilling process | Fixed Constructions | 50 | Expired |
| US6446718B1 | Down hole tool and method | Fixed Constructions | 43 | Expired |
| US4773263A | Method of analyzing vibrations from a drilling bit in a borehole | Fixed Constructions | 40 | Expired |
| US6845819B2 | Down hole tool and method | Fixed Constructions | 40 | Expired |
| US6971265B1 | Downhole sensing apparatus with separable elements | Fixed Constructions | 39 | Expired |
| US4941951A | Method for improving a drilling process by characterizing the hydraulics of the drilling system | Fixed Constructions | 35 | Expired |
| US8763726B2 | Drill bit gauge pad control | Fixed Constructions | 28 | Active |
| US8534380B2 | System and method for directional drilling a borehole with a rotary drilling system | Fixed Constructions | 22 | Active |
| US8727036B2 | System and method for drilling | Fixed Constructions | 17 | Active |
| US8757294B2 | System and method for controlling a drilling system for drilling a borehole in an earth formation | Fixed Constructions | 14 | Active |
| US8899352B2 | System and method for drilling | Fixed Constructions | 11 | Active |
| US4981036A | Method of determining the porosity of an underground formation being drilled | Fixed Constructions | 10 | Expired |
| US4715452A | Method of drilling a directonal well bore | Fixed Constructions | 10 | Expired |
| US8066085B2 | Stochastic bit noise control | Fixed Constructions | 9 | Active |
| US7493948B2 | Wellbore consolidating tool for rotary drilling applications | Fixed Constructions | 7 | Expired |
| US8720604B2 | Method and system for steering a directional drilling system | Fixed Constructions | 3 | Active |
| US8720605B2 | System for directionally drilling a borehole with a rotary drilling system | Fixed Constructions | 2 | Active |
| US8245775B2 | Wellbore consolidating tool for rotary drilling application | Fixed Constructions | 1 | Active |
| US8550185B2 | Stochastic bit noise | Fixed Constructions | 1 | Active |
| US7810559B2 | Wellbore consolidating tool for rotary drilling applications | Fixed Constructions | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.