Earl J. Peterman
5Patents
5h-index
1Co-inventors
49Inventor score
Filing activity: Jul 31, 1980 → May 26, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4387340A | Apparatus for determining the distance to a concealed conductive object which is radiating an alternating current signal | Physics | 115 | Expired |
| US5001430A | Apparatus for locating concealed electrical conductors | Physics | 83 | Expired |
| US4520317A | Apparatus including a pair of automatic gain controlled amplifiers for determining the lateral direction to a concealed conductive object | Physics | 82 | Expired |
| US6140819A | Continuous-depth-indicating underground pipe and cable locator | Physics | 72 | Expired |
| US5686828A | Method for locating the joints and fracture points of underground jointed metallic pipes and cast-iron-gas-main-pipeline joint locator system | Physics | 44 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.