Richard M. Ward
14Patents
7h-index
20Co-inventors
66Inventor score
Filing activity: Dec 8, 1980 → Mar 7, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5826651A | Wellbore single trip milling | Fixed Constructions | 97 | Expired |
| US6116336A | Wellbore mill system | Fixed Constructions | 57 | Expired |
| US6484808B2 | Stripper/packer | Fixed Constructions | 20 | Expired |
| US5743331A | Wellbore milling system | Fixed Constructions | 18 | Expired |
| US6334487B1 | Valve assembly | Fixed Constructions | 15 | Expired |
| US5007344A | Dual firing system for a perforating gun | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US7261155B1 | Cable side-entry sub with grease injection flow tubes | Fixed Constructions | 8 | Expired |
| US4770246A | Method and apparatus for firing borehole perforating apparatus | Fixed Constructions | 7 | Expired |
| US4371038A | Apparatus and method for injecting fluid into a well | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4674328A | Method and apparatus for determining subsurface conditions using a tubing packoff tool | Fixed Constructions | 4 | Expired |
| US9441444B2 | Modular subsea stripper packer and method of using same | Fixed Constructions | 1 | Active |
| US10270628B1 | Method and system for calibrating equalizers | Electricity | 0 | Active |
| US10612324B2 | Wellsite tool guide assembly and method of using same | Fixed Constructions | 0 | Active |
| US10382236B2 | Method and system for calibrating equalizers | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.