Inventor

Brian A. Roth

Inventor

Dhahran, SA

Overview

31→

Patents

1991–2021

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 31 as inventor

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

E21Bprimary

E21BEarth or rock drilling54%

Y10TTechnical subjects covered by former us classification14%

F16KValves11%

B01DSeparation5%

B01FMixing, e.g. dissolving, emulsifying or dispersing4%

F04BPositive-displacement machines for liquids4%

C02FTreatment of water, waste water, sewage, or sludge2%

C09KMaterials for miscellaneous applications, not provided for elsewhere2%

F16LPipes2%

G02BOptical elements, systems or apparatus2%

PatentTitleYear

11,131,175Matrix stimulation tool2021 11,091,988Downhole system and method for selectively producing and unloading from a well2021 11,053,788Acoustic downhole oil-water separation2021 10,851,596Multi-level wellhead support platform2020 10,844,673Fiber reinforced and powered coil tubing2020 10,837,267Well kickoff systems and methods2020 10,465,484Gravel packing system and method2019 10,465,477Subsurface safety valve for cable deployed electrical submersible pump2019 10,337,302In-situ replacement of fluids in a well tool2019 10,253,610Downhole oil/water separation system for improved injectivity and reservoir recovery2019 10,151,194Electrical submersible pump with proximity sensor2018 10,100,596Hanger for an umbilically deployed electrical submersible pumping system2018 9,951,598Fluid homogenizer system for gas segregated liquid hydrocarbon wells and method of homogenizing liquids produced by such wells2018 9,631,482'Method and apparatus for down-hole alignment of optic fibers'2017 9,593,561'Hanger and penetrator for through tubing ESP deployment with a vertical production tree'2017 9,587,456'Packer setting method using disintegrating plug'2017 9,353,614'Fluid homogenizer system for gas segregated liquid hydrocarbon wells and method of homogenizing liquids produced by such wells'2016 6,983,795'Downhole zone isolation system'2006 6,810,955'Gas lift mandrel'2004 6,782,952'Hydraulic stepping valve actuated sliding sleeve'2004 6,612,547'Downhole flow control devices'2003 6,484,800'Downhole flow control devices'2002 6,450,255'Downhole flow control devices'2002 6,334,486'Downhole flow control devices'2002 6,260,616'Downhole flow control devices'2001 6,220,362'Conduit and cable bypass for downhole tools'2001 5,906,238'Downhole flow control devices'1999 5,896,924'Computer controlled gas lift system'1999 5,465,787'Fluid circulation apparatus'1995 5,156,210'Hydraulically actuated well shifting tool'1992 4,986,358'Flapper mount for well safety valve'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1995Patents assigned to CAMCO INT (3)· patent assignee history

1991–2006Based in Houston, TX, US· patent location history

1995Based in The Woodlands, TX, US· patent location history

1999–2006Patents assigned to BAKER HUGHES INC (11)· patent assignee history

2016–2021Patents assigned to SAUDI ARABIAN OIL CO (17)· patent assignee history

2016–2021Based in Dhahran, SA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SAUDI ARABIAN OIL CO	17	2016–2021
BAKER HUGHES INC	11	1999–2006
CAMCO INT	3	1991–1995

Locations

Location	Patents	Span
Dhahran, SA	17	2016–2021
Houston, Texas, US	13	1991–2006
The Woodlands, Texas, US	1	1995