John C. Wolf
17Patents
7h-index
23Co-inventors
66Inventor score
Filing activity: May 6, 1976 → Jan 10, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8469088B2 | Drillable bridge plug for high pressure and high temperature environments | Fixed Constructions | 52 | Active |
| US8701787B2 | Metal expandable element back-up ring for high pressure/high temperature packer | Fixed Constructions | 18 | Active |
| US8672025B2 | Downhole debris removal tool | Fixed Constructions | 14 | Active |
| US8800660B2 | Debris catcher for collecting well debris | Fixed Constructions | 12 | Active |
| US9045963B2 | High pressure and high temperature ball seat | Fixed Constructions | 12 | Active |
| US9404330B2 | Method and apparatus for a well employing the use of an activation ball | Fixed Constructions | 8 | Active |
| US11002104B2 | Plug assemblies for a subterranean wellbore | Fixed Constructions | 7 | Active |
| US8826986B2 | Downhole scraper | Fixed Constructions | 4 | Active |
| US4084409A | Flexible coupling for rotatable shafts | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US9394763B2 | Multilateral location and orientation assembly | Fixed Constructions | 2 | Active |
| US9181778B2 | Multiple ball-ball seat for hydraulic fracturing with reduced pumping pressure | Fixed Constructions | 2 | Active |
| US10072491B2 | Method and apparatus for well bore illumination and inspection | Electricity | 1 | Active |
| US10344563B2 | Multi-bar scraper for cleaning marine risers and wellbores | Performing Operations; Transporting | 0 | Active |
| US12180805B2 | Flotation apparatus for providing buoyancy to tubular members | Fixed Constructions | 0 | Active |
| US10392904B2 | Lateral junction for use in a well | Fixed Constructions | 0 | Active |
| US10321665B2 | System for controlled heating and ventilation of livestock structures | Emerging Cross-Sectional Technologies | 0 | Active |
| US9848586B2 | System and method for environmental control | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.