Eric N. Freeman
11Patents
7h-index
32Co-inventors
62Inventor score
Filing activity: May 5, 1994 → Jul 6, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7281543B2 | Apparatus, systems and methods for plugging a high temperature pipe | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7546847B2 | Locking plug for closing the sidewall of a pipe | Emerging Cross-Sectional Technologies | 15 | Active |
| US5531250A | Device for plugging the interior of a pipe | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US7475591B2 | Methods and systems for hydrostatic testing a pipeline | Physics | 9 | Active |
| US8316500B2 | Bidirectional bristle pig with sliding collar | Performing Operations; Transporting | 9 | Active |
| US8052801B2 | Pipeline pig launch pin and retraction system | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US7311114B2 | Cross-line plugging system | Emerging Cross-Sectional Technologies | 7 | Active |
| US8650694B2 | Speed regulated pipeline pig | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US8378667B2 | System and method for detecting the passage of an object in pipeline including shielded magnetometer and a microcontroller with adaptive thresholding detection means | Physics | 3 | Active |
| US8251238B2 | Two-piece closure device | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US8151483B2 | Progressive dewatering and inhibitor dispersal rolling pig | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.