Inventor
Obie M. Langford
Inventor
Houston, TX, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Vprimary
G01VGeophysics21%
E21BEarth or rock drilling16%
H05HPlasma technique16%
G01FMeasuring volume, volume flow, mass flow or liquid level11%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems11%
G01NInvestigating or analysing materials by determining their chemical or physical properties5%
G21FProtection against x-radiation, gamma radiation, corpuscular radiation or particle bombardment5%
H01GCapacitors5%
H01JElectric discharge tubes or discharge lamps5%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h105%
PatentTitleYear
4,320,446'Cockcroft-Walton voltage multiplying circuit for slim hole well logging tool'19824,209,695'Detection of impurities in fluid flowing in refinery pipeline or oil production operations using nuclear techniques'19804,169,979'Method and apparatus for measuring azimuth and speed of horizontal fluid flow by a borehole'19794,092,545'Means and method for controlling the neutron output of a neutron generator tube'19784,028,546'Behind well casing water flow detection system'19773,973,131'Pulsed neutron logging: multipurpose logging sonde for changing types of logs in the borehole without bringing the sonde to the surface'19763,969,630'Method and apparatus for defining radiation-opaque pathways within shielding materials'19763,949,232'High-voltage arc detector'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1982Patents assigned to TEXACO INC (8)· patent assignee history
1976–1982Based in Houston, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TEXACO INC | 8 | 1976–1982 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 8 | 1976–1982 |