Michael A. Carmody
45Patents
23h-index
49Co-inventors
85Inventor score
Filing activity: Mar 30, 1976 → Nov 3, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6619696B2 | Expandable locking thread joint | Mechanical Engineering; Lighting; Heating | 100 | Expired |
| US4944351A | Downhole safety valve for subterranean well and method | Fixed Constructions | 98 | Expired |
| US6568470B2 | Downhole actuation system utilizing electroactive fluids | Emerging Cross-Sectional Technologies | 96 | Expired |
| US4981177A | Method and apparatus for establishing communication with a downhole portion of a control fluid pipe | Fixed Constructions | 93 | Expired |
| US4457376A | Flapper type safety valve for subterranean wells | Fixed Constructions | 89 | Expired |
| US6173788A | Wellpacker and a method of running an I-wire or control line past a packer | Fixed Constructions | 79 | Expired |
| US5906238A | Downhole flow control devices | Emerging Cross-Sectional Technologies | 78 | Expired |
| US6848505B2 | Alternative method to cementing casing and liners | Fixed Constructions | 71 | Expired |
| US6041857A | Motor drive actuator for downhole flow control devices | Fixed Constructions | 68 | Expired |
| US6334486B1 | Downhole flow control devices | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4356867A | Temporary lock-open tool for subterranean well valve | Fixed Constructions | 49 | Expired |
| US6776636B1 | PBR with TEC bypass and wet disconnect/connect feature | Electricity | 49 | Expired |
| US6484800B2 | Downhole flow control devices | Emerging Cross-Sectional Technologies | 48 | Expired |
| US6722439B2 | Multi-positioned sliding sleeve valve | Fixed Constructions | 47 | Expired |
| US5832996A | Electro hydraulic downhole control device | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5896924A | Computer controlled gas lift system | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4411316A | Subterranean well valve with lock open mechanism | Fixed Constructions | 44 | Expired |
| US4796705A | Subsurface well safety valve | Fixed Constructions | 44 | Expired |
| US4415036A | Pressure equalizing flapper type safety valve for subterranean wells | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4427071A | Flapper type safety valve for subterranean wells | Fixed Constructions | 34 | Expired |
| US4295528A | Selective lock with setting and retrieving tools | Fixed Constructions | 30 | Expired |
| US6926089B2 | Downhole actuation system utilizing electroactive fluids | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6612547B2 | Downhole flow control devices | Emerging Cross-Sectional Technologies | 25 | Expired |
| US7104331B2 | Optical position sensing for well control tools | Fixed Constructions | 19 | Expired |
| US4503913A | Subsurface well safety valve | Fixed Constructions | 18 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.