Inventor

MORRISON H FRANK

11 patents

⚠️ This page may combine multiple inventors who share the name “MORRISON H FRANK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GROUNDMETRICS INC

3 patents

US10012752B2Jul 3, 2018

System and method to induce an electromagnetic field within the earth

GROUNDMETRICS INC5 citations71

US10114141B2Oct 30, 2018

Subsurface resistivity modeling with electromagnetic fields using a conductive casing

GROUNDMETRICS INC2 citations65

US9823379B2Nov 21, 2017

System and method for mapping deep anomalous zones of electrical resistivity

GROUNDMETRICS INC0 citations39

WESTERNGECO LLC

2 patents

US8008921B2Aug 30, 2011

Surveying using vertical electromagnetic sources that are towed along with survey receivers

WESTERNGECO LLC10 citations82

US8378685B2Feb 19, 2013

Surveying a subterranean structure using a vertically oriented electromagnetic source

WESTERNGECO LLC3 citations60

UNIV CALIFORNIA

2 patents

US4165480AAug 21, 1979

Prospecting system using rotating superconducting electromagnetic dipole

UNIV CALIFORNIA11 citations72

US10126456B2Nov 13, 2018

System and method for groundwater detection and evaluation

UNIV CALIFORNIA0 citations36

ROSTHAL RICHARD A

1 patent

US8332191B2Dec 11, 2012

Correction factors for electromagnetic measurements made through conductive material

ROSTHAL RICHARD A20 citations88

GAO GUOZHONG

1 patent

US8614578B2Dec 24, 2013

Attenuation of electromagnetic signals passing through conductive material

GAO GUOZHONG11 citations81

ALUMBAUGH DAVID L

1 patent

US9103927B2Aug 11, 2015

Providing a tow cable having plural electromagnetic receivers and one or more electromagnetic sources

ALUMBAUGH DAVID L0 citations49

KRAMER GARRETT

1 patent

US10024995B2Jul 17, 2018

System and method for elevated source to borehole electromagnetic survey

KRAMER GARRETT0 citations42