Stephen E. Tilghman
14Patents
10h-index
26Co-inventors
72Inventor score
Filing activity: May 6, 1985 → Apr 13, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4665398A | Method of sampling and recording information pertaining to a physical condition detected in a well bore | Fixed Constructions | 97 | Expired |
| US7591318B2 | Method for removing a sealing plug from a well | Fixed Constructions | 86 | Active |
| US7328750B2 | Sealing plug and method for removing same from a well | Fixed Constructions | 72 | Expired |
| US4866607A | Self-contained downhole gauge system | Fixed Constructions | 61 | Expired |
| US4932471A | Downhole tool, including shock absorber | Fixed Constructions | 43 | Expired |
| US4709234A | Power-conserving self-contained downhole gauge system | Emerging Cross-Sectional Technologies | 42 | Expired |
| US7073582B2 | Method and apparatus for positioning a downhole tool | Fixed Constructions | 33 | Expired |
| US5967231A | Plug release indication method | Fixed Constructions | 20 | Expired |
| US5337234A | Self-contained downhole gauge system | Fixed Constructions | 15 | Expired |
| US4669082A | Method of testing and addressing a magnetic core memory | Physics | 14 | Expired |
| US5430882A | Apparatus and method for protecting data stored in memory | Physics | 10 | Expired |
| US5153832A | Self-containing downhole gauge system | Fixed Constructions | 7 | Expired |
| US9019798B2 | Acoustic reception | Fixed Constructions | 0 | Active |
| US10822943B2 | Modulating downhole reflector | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.