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Inventor

Chandra S. Rai

Inventor
Tulsa, OK, US

Overview

12→
Patents
1988–2021
Patent span
Physics
Primary field (CPC G)

Patents· 12 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Vprimary
G01VGeophysics39%
G01NInvestigating or analysing materials by determining their chemical or physical properties33%
E21BEarth or rock drilling11%
G01RMeasuring electric variables11%
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves6%
PatentTitleYear
11,119,062Method and assembly for measuring diffusion in nanoporous media202110,359,379Methods of determining shale pore connectivity20195,134,271'Bar code system used in geophysical exploration'19925,109,697'Method of exploration for hydrocarbons'19925,012,674'Method of exploration for hydrocarbons'19914,996,421'Method an system of geophysical exploration'19914,964,086'Method for characterizing velocity estimates'19904,933,911'Method for determining seismic velocities'19904,912,979'Method and apparatus for detecting and measuring elastic anisotropy'19904,907,206'Method for estimating formation lithology'19904,831,530'Method for determining in-situ formation properties'19894,754,439'Means for obtaining shear wave velocities'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1992Patents assigned to AMOCO CORP (9)· patent assignee history
1988–1992Based in Tulsa, OK, US· patent location history
1992Patents assigned to MILLHEIM KEITH K (1)· patent assignee history
1992Patents assigned to MOUNT II HOUSTON B (1)· patent assignee history
1992Patents assigned to RAI CHANDRA S (1)· patent assignee history
2019–2021Patents assigned to UNIV OKLAHOMA (2)· patent assignee history
2019–2021Based in Norman, OK, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AMOCO CORP91988–1992
UNIV OKLAHOMA22019–2021
MILLHEIM KEITH K11992
MOUNT II HOUSTON B11992
RAI CHANDRA Sself11992
Locations
LocationPatentsSpan
Tulsa, OK, US101988–1992
Norman, OK, US22019–2021