LexDanaLexDanabeta
Inventor

Geoffrey C. Downton

Inventor
Minchinhampton, GB

Overview

45→
Patents
1981–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 45 as inventor

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

E21Bprimary
E21BEarth or rock drilling62%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids9%
F03CPositive-displacement engines driven by liquids6%
F01CRotary-piston or oscillating-piston machines or engines4%
Y10TTechnical subjects covered by former us classification4%
F03BMachines or engines for liquids3%
G01CMeasuring distances, levels or bearings3%
G01VGeophysics3%
E04DRoof coverings1%
E21CMining or quarrying1%
PatentTitleYear
11,125,020Downhole drilling apparatus with drilling, steering, and reaming functions and methods of use202111,118,408Downhole steering system and methods202110,920,536Methods and systems for designing drilling systems202110,837,234Unidirectionally extendable cutting element steering202010,731,420Indexing drill bit202010,689,910Bi-directional drilling systems and methods202010,669,786Two-part bit wiring assembly202010,612,542Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps202010,605,005Steerable drill bit system202010,407,987Progressive cavity based control system201910,302,083Motor control system20199,982,485Positive displacement motor with radially constrained rotor catch20189,752,386'Steerable drilling system'20179,695,638'Positive displacement motor with radially constrained rotor catch'20179,631,432'Mud actuated drilling system'20179,605,480'Directional drilling control devices and methods'20179,482,223'Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps'20169,416,594'System and method for drilling a borehole'20169,366,087'High dogleg steerable tool'20169,309,722'Oil operated rotary steerable system'20169,303,457'Directional drilling using magnetic biasing'20169,057,223'Directional drilling system'20158,905,159'Eccentric steering device and methods of directional drilling'20148,899,352'System and method for drilling'20148,775,145'System and apparatus for modeling the behavior of a drilling assembly'20148,763,725'Rotary steerable drilling system'20148,757,294'System and method for controlling a drilling system for drilling a borehole in an earth formation'20148,746,368'Compliantly coupled gauge pad system'20148,727,036'System and method for drilling'20148,720,608'Wellbore instruments using magnetic motion converters'20148,708,064'System and method to control steering and additional functionality in a rotary steerable system'20148,695,731'Drilling system'20148,672,056'System and method for controlling steering in a rotary steerable system'20148,590,638'Intelligent wellbore propagation system'20138,517,121'Steerable drilling system'20138,469,104'Valves, bottom hole assemblies, and method of selectively actuating a motor'20138,376,067'System and method employing a rotational valve to control steering in a rotary steerable system'20138,235,145'Gauge pads, cutters, rotary components, and methods for directional drilling'20128,235,146'Actuators, actuatable joints, and methods of directional drilling'20127,971,661'Motor bit system'20117,913,773'Bidirectional drill string telemetry for measuring and drilling control'20117,849,939'Drill bit'20107,845,430'Compliantly coupled cutting system'20104,993,274'Gyroscope system'19914,257,280'Gyroscopes'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2010–2021Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (37)· patent assignee history
2010–2014Based in Sugar Land, TX, US· patent location history
2011–2020Based in Minchinhampton, GB· patent location history
2012–2016Patents assigned to DOWNTON GEOFFREY C (16)· patent assignee history
2012–2014Patents assigned to ALDRED WALTER DAVID (5)· patent assignee history
2012–2014Patents assigned to BOUALLEG RIADH (5)· patent assignee history
2012–2014Patents assigned to HAUGVALDSTAD KJELL (5)· patent assignee history
2012–2018Based in Gloucestershire, GB· patent location history
2014–2020Based in Stroud, GB· patent location history
2016–2021Based in Stonehouse, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHLUMBERGER TECHNOLOGY CORP372010–2021
DOWNTON GEOFFREY Cself162012–2016
ALDRED WALTER DAVID52012–2014
BOUALLEG RIADH52012–2014
HAUGVALDSTAD KJELL52012–2014
Locations
LocationPatentsSpan
Minchinhampton, GB122011–2020
Stroud, GB102014–2020
Gloucestershire, GB82012–2018
Sugar Land, Texas, US72010–2014
Stonehouse, GB42016–2021