LexDanaLexDanabeta
Inventor

Paul L. Smith

Inventor
Katy, TX, US

Overview

18→
Patents
2012–2020
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 18 as inventor

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

E21Bprimary
E21BEarth or rock drilling58%
Y10TTechnical subjects covered by former us classification19%
F16KValves10%
F15BSystems acting by means of fluids in general6%
F04BPositive-displacement machines for liquids3%
F16FSprings3%
PatentTitleYear
10,753,177Method and apparatus for actuating downhole tools202010,287,852Method and apparatus for actuating downhole tools201910,214,999Remotely operated isolation valve201910,196,883Long-stroke pumping unit201910,180,041Isolation valve with debris control and flow tube protection201910,151,171Signal operated isolation valve201810,113,372Centralizer20189,528,345'Hydraulic communication device'20169,394,762'Isolation valve with debris control and flow tube protection'20169,163,481'Remotely operated isolation valve'20158,978,750'Signal operated isolation valve'20158,905,140'Downhole deployment valves'20148,789,603'Downhole deployment valves'20148,708,051'Isolation valve with debris control and flow tube protection'20148,544,549'Downhole deployment valves'20138,534,362'Downhole deployment valves'20138,522,878'Downhole deployment valves'20138,261,836'Downhole deployment valves'2012

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012–2015Patents assigned to NOSKE JOE (7)· patent assignee history
2012–2014Patents assigned to WEATHERFORD LAMB (7)· patent assignee history
2012–2013Patents assigned to BRUNNERT DAVID J (4)· patent assignee history
2012–2013Patents assigned to GRAYSON MICHAEL BRIAN (4)· patent assignee history
2012–2019Based in Katy, TX, US· patent location history
2016–2020Patents assigned to WEATHERFORD TECH HOLDINGS LLC (8)· patent assignee history
2019–2020Based in Houston, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WEATHERFORD TECH HOLDINGS LLC82016–2020
NOSKE JOE72012–2015
WEATHERFORD LAMB72012–2014
BRUNNERT DAVID J42012–2013
GRAYSON MICHAEL BRIAN42012–2013
Locations
LocationPatentsSpan
Katy, Texas, US162012–2019
Houston, Texas, US22019–2020