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Inventor

Gerald D. Jackson

Inventor
Marlow, OK, US

Overview

4→
Patents
1979–1985
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 4 as inventor

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

E21Bprimary
E21BEarth or rock drilling80%
F16JPistons20%
PatentTitleYear
4,493,373'Dynamic seal for well tools'19854,372,391'Screw operated emergency relief and safety valve'19834,319,633'Drill pipe tester and safety valve'19824,144,937'Valve closing method and apparatus for use with an oil well valve'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1983Patents assigned to HALLIBURTON CO (2)· patent assignee history
1979–1983Based in Marlow, OK, US· patent location history
1982Patents assigned to HALLIBURTON SERVICES (1)· patent assignee history
1985Patents assigned to BAKER OIL TOOLS INC (1)· patent assignee history
1985Based in Broken Arrow, OK, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HALLIBURTON CO21979–1983
BAKER OIL TOOLS INC11985
HALLIBURTON SERVICES11982
Locations
LocationPatentsSpan
Marlow, OK, US31979–1983
Broken Arrow, OK, US11985