LexDanaLexDanabeta
Inventor

Charles A. Butterfield, Jr.

Inventor
Duncan, OK, US

Overview

12→
Patents
1999–2018
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 12 as inventor

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

E21Bprimary
E21BEarth or rock drilling86%
F16LPipes7%
H02NElectric machines not otherwise provided for7%
PatentTitleYear
10,018,004Method and apparatus for casing entry20188,695,699'Downhole release joint with radially expandable member'20148,499,840'Downhole release joint with radially expandable member'20137,886,831'Apparatus for radially expanding and plastically deforming a tubular member'20117,823,659'Apparatus and methods for drilling and lining a wellbore'20107,080,687'Anti-rotation method and apparatus for limiting rotation of cementing plugs'20066,799,638'Method, apparatus and system for selective release of cementing plugs'20046,796,377'Anti-rotation apparatus for limiting rotation of cementing plugs'20046,571,880'Method and multi-purpose apparatus for control of fluid in wellbore casing'20036,318,472'Hydraulic set liner hanger setting mechanism and method'20016,011,346'Apparatus and method for generating electricity from energy in a flowing stream of fluid'20005,967,231'Plug release indication method'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2006Patents assigned to HALLIBURTON ENERGY SERV INC (6)· patent assignee history
1999–2006Based in Duncan, OK, US· patent location history
2003–2014Based in Cypress, TX, US· patent location history
2010–2014Patents assigned to ENVENTURE GLOBAL TECHNOLOGY (3)· patent assignee history
2013–2014Patents assigned to BENNETT FREDERICK C (2)· patent assignee history
2013–2014Patents assigned to BUTTERFIELD JR CHARLES A (2)· patent assignee history
2013–2014Patents assigned to CHOWDHARY HARSH V (2)· patent assignee history
2013–2018Based in Houston, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HALLIBURTON ENERGY SERV INC61999–2006
ENVENTURE GLOBAL TECHNOLOGY32010–2014
BENNETT FREDERICK C22013–2014
BUTTERFIELD JR CHARLES Aself22013–2014
CHOWDHARY HARSH V22013–2014
Locations
LocationPatentsSpan
Duncan, OK, US61999–2006
Cypress, Texas, US42003–2014
Houston, Texas, US22013–2018