Clark E. Robison
65Patents
23h-index
90Co-inventors
91Inventor score
Filing activity: Nov 1, 1985 → Sep 16, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6408943B1 | Method and apparatus for placing and interrogating downhole sensors | Fixed Constructions | 187 | Expired |
| US5390742A | Internally sealable perforable nipple for downhole well applications | Fixed Constructions | 173 | Expired |
| US6343649B1 | Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation | Fixed Constructions | 155 | Expired |
| US6359569B2 | Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation | Fixed Constructions | 137 | Expired |
| US6554064B1 | Method and apparatus for a sand screen with integrated sensors | Fixed Constructions | 107 | Expired |
| US6755249B2 | Apparatus and method for perforating a subterranean formation | Fixed Constructions | 105 | Expired |
| US6497280B2 | Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation | Fixed Constructions | 99 | Expired |
| US5211241A | Variable flow sliding sleeve valve and positioning shifting tool therefor | Fixed Constructions | 97 | Expired |
| US6619394B2 | Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom | Fixed Constructions | 67 | Expired |
| US6504258B2 | Vibration based downhole power generator | Electricity | 66 | Expired |
| US6994162B2 | Linear displacement measurement method and apparatus | Fixed Constructions | 58 | Expired |
| US6768214B2 | Vibration based power generator | Electricity | 56 | Expired |
| US6588505B2 | Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation | Fixed Constructions | 51 | Expired |
| US6684951B2 | Sand screen with integrated sensors | Fixed Constructions | 47 | Expired |
| US6150601A | Method and apparatus for generating electric power downhole | Fixed Constructions | 44 | Expired |
| US6481505B2 | Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation | Fixed Constructions | 42 | Expired |
| US8505639B2 | Indexing sleeve for single-trip, multi-stage fracing | Fixed Constructions | 41 | Active |
| US6172614A | Method and apparatus for remote actuation of a downhole device using a resonant chamber | Fixed Constructions | 39 | Expired |
| US5871046A | Orienting, retrievable whipstock anchor | Fixed Constructions | 34 | Expired |
| US6394181B2 | Self-regulating lift fluid injection tool and method for use of same | Electricity | 33 | Expired |
| US8403068B2 | Indexing sleeve for single-trip, multi-stage fracing | Fixed Constructions | 32 | Active |
| US6812811B2 | Power discriminating systems | Electricity | 27 | Expired |
| US7038332B2 | Power discriminating systems | Electricity | 24 | Expired |
| US7063143B2 | Docking station assembly and methods for use in a wellbore | Fixed Constructions | 23 | Expired |
| US6435282B1 | Annular flow safety valve and methods | Fixed Constructions | 22 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.