Inventor
W. Allen Gilchrist
Inventor
Houston, TX, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Vprimary
G01VGeophysics66%
E21BEarth or rock drilling17%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
G01RMeasuring electric variables6%
H05HPlasma technique3%
PatentTitleYear
10,725,200Water saturation determination using an oxygen estimate and formation lithology202010,324,225Water saturation determination using an oxygen estimate and formation lithology201910,324,224Elemental concentration determination using neutron-induced activation gamma radiation20199,360,586'Water saturation determination using an oxygen estimate and formation lithology'20169,261,622'Elemental concentration determination using neutron-induced activation gamma radiation'20169,086,500'Apparatus and method for pulsed neutron measurement'20158,866,475'Method for correcting NMR and nuclear logs in formate mud filtrate invaded formations'20148,604,417'Targetless pulsed neutron generator using beam-beam interaction'20138,525,103'Method for hydrocarbon saturation and hydraulic frac placement'20138,502,135'Method for through-casing 3-phase saturation determination'20138,481,920'Apparatus and method for determining formation density from nuclear density measurements made using sensors at more than one location'20138,471,197'Pulsed neutron based monitoring of CO2 in enhanced recovery and sequestration projects'20138,440,961'Gamma ray generator'20138,436,294'Method for taking gamma-gamma density measurements'20137,893,398'Compensated mineralogy tool and processing'20117,565,833'Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis'20097,482,579'Method and apparatus for high resolution gamma ray measurements'20097,446,308'Method of calibrating multi-channel nuclear energy spectra'20087,439,494'Method and apparatus for determining the thermal neutron capture cross-section of a subsurface formation from a borehole'20087,301,338'Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis'20077,294,829'Method and apparatus for an improved formation density indicator using pulsed neutron instruments'20077,166,834'Method and apparatus for determining the thermal neutron capture cross-section of a subsurface formation from a borehole'20077,117,733'Dynamic logging speed'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2019Patents assigned to BAKER HUGHES INC (21)· patent assignee history
2006–2015Based in Houston, TX, US· patent location history
2013–2019Patents assigned to INANC FEYZI (10)· patent assignee history
2013–2019Patents assigned to CHACE DAVID M (6)· patent assignee history
2013–2015Patents assigned to GILCHRIST JR W ALLEN (6)· patent assignee history
2013–2019Patents assigned to GILCHRIST W ALLEN (6)· patent assignee history
2013–2020Based in Fort Davis, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAKER HUGHES INC | 21 | 2006–2019 |
| INANC FEYZI | 10 | 2013–2019 |
| CHACE DAVID M | 6 | 2013–2019 |
| GILCHRIST JR W ALLENself | 6 | 2013–2015 |
| GILCHRIST W ALLENself | 6 | 2013–2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 13 | 2006–2015 |
| Fort Davis, Texas, US | 10 | 2013–2020 |