Ian C. Walton
19Patents
12h-index
35Co-inventors
74Inventor score
Filing activity: Nov 16, 1994 → Oct 17, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6598682B2 | Reservoir communication with a wellbore | Fixed Constructions | 95 | Expired |
| US7909115B2 | Method for perforating utilizing a shaped charge in acidizing operations | Fixed Constructions | 57 | Active |
| US6554081B1 | Components and methods for use with explosives | Mechanical Engineering; Lighting; Heating | 43 | Expired |
| US7121340B2 | Method and apparatus for reducing pressure in a perforating gun | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6896059B2 | Components and methods for use with explosives | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US8126646B2 | Perforating optimized for stress gradients around wellbore | Fixed Constructions | 27 | Active |
| US7036594B2 | Controlling a pressure transient in a well | Fixed Constructions | 27 | Expired |
| US7451819B2 | Openhole perforating | Fixed Constructions | 25 | Expired |
| US6966377B2 | Providing a low pressure condition in a wellbore region | Fixed Constructions | 25 | Expired |
| US7182138B2 | Reservoir communication by creating a local underbalance and using treatment fluid | Fixed Constructions | 24 | Expired |
| US5608170A | Flow measurement system | Physics | 23 | Expired |
| US7748457B2 | Injection of treatment materials into a geological formation surrounding a well bore | Fixed Constructions | 14 | Expired |
| US8540024B2 | Perforation strategy for heterogeneous proppant placement in hydraulic fracturing | Fixed Constructions | 11 | Active |
| US8347963B2 | Controlling transient underbalance in a wellbore | Fixed Constructions | 7 | Active |
| US7984761B2 | Openhole perforating | Fixed Constructions | 5 | Active |
| US7845410B2 | Openhole perforating | Fixed Constructions | 3 | Active |
| US10428626B2 | Production estimation in subterranean formations | Fixed Constructions | 2 | Active |
| US7712532B2 | Energized fluids and pressure manipulation for subsurface applications | Fixed Constructions | 2 | Active |
| US8726809B2 | Method and apparatus for perforating | Mechanical Engineering; Lighting; Heating | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.