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Inventor

Thang Vo

Inventor
Houston, TX, US

Overview

9→
Patents
1980–2017
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 9 as inventor

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

E21Bprimary
E21BEarth or rock drilling50%
B24DTools for grinding, buffing or sharpening25%
G06FElectric digital data processing17%
H01QAntennas, i.e. radio aerials8%
PatentTitleYear
9,840,874'Hybrid rolling cone drill bits and methods for manufacturing same'20179,328,562'Rock bit and cutter teeth geometries'20169,249,628'Hybrid rolling cone drill bits and methods for manufacturing same'20169,140,071'Apparatus and method for retaining inserts of a rolling cone drill bit'20158,733,475'Drill bit with enhanced hydraulics and erosion-shield cutting teeth'20148,607,899'Rock bit and cutter teeth geometries'20135,309,382'Binary shifter'19944,737,926'Optimally partitioned regenerative carry lookahead adder'19884,229,743'Multiple band, multiple resonant frequency antenna'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980Based in Columbia, SC, US· patent location history
1988Based in Santa Clara, CA, US· patent location history
1994Based in Fremont, CA, US· patent location history
2013–2016Patents assigned to NAT OILWELL VARCO LP (2)· patent assignee history
2013–2014Patents assigned to ROBERTS TOM SCOTT (2)· patent assignee history
2013–2014Patents assigned to VO THANG (2)· patent assignee history
2013–2017Based in Houston, TX, US· patent location history
2014–2017Patents assigned to NAT OILWELL DHT LP (4)· patent assignee history
2014Patents assigned to CARAWAY DOUGLAS (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NAT OILWELL DHT LP42014–2017
NAT OILWELL VARCO LP22013–2016
ROBERTS TOM SCOTT22013–2014
VO THANGself22013–2014
CARAWAY DOUGLAS12014
Locations
LocationPatentsSpan
Houston, Texas, US62013–2017
Fremont, California, US11994
Santa Clara, California, US11988
Columbia, SC, US11980