Individual holder
HELMS RONALD L
US·3 granted patents·1 pending application·209 citations·filing 1982–2005
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0189US5148110AMethod and apparatus for passively detecting the depth and location of a spatial or temporal anomaly by monitoring a time varying signal emanating from the earths surfaceHELMS RONALD L·Filed 1990·Granted Sep 15, 1992·111 cites·21 claims
- 0282US4507611AMethod for detecting surface and subsurface anomalies of the earth using vertical current measurementsHELMS RONALD L·Filed 1982·Granted Mar 26, 1985·45 cites·12 claims
- 0380US4825165AMethod and apparatus for detecting a transient phenomenon by monitoring variations of an alternating component of a vertical current emanating from the earth's surfaceHELMS RONALD L·Filed 1987·Granted Apr 25, 1989·53 cites·32 claims
- 0440US2007209439A1Apparatus and method for detection of plastic materialsHELMS RONALD L·Filed 2005·Application pending·0 cites
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