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Inventor

John Hanton

Inventor
Dyce, GB

Overview

10→
Patents
1981–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 10 as inventor

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

E21Bprimary
E21BEarth or rock drilling67%
A01KAnimal husbandry8%
B28CPreparing clay8%
G06KGraphical data reading8%
G07CTime or attendance registers8%
PatentTitleYear
10,941,620Downhole swivel sub and method for releasing a stuck object in a wellbore202110,794,121Connecting assembly and receptacle adapted to receive said connecting assembly for connecting two tubing sections, and method for installing and connecting two tubing sections in a wellbore20209,982,492Downhole swivel sub20189,605,494'Tool for selectively connecting or disconnecting components of a downhole workstring'20177,178,599'Subsurface safety valve'20076,585,040'Downhole drilling apparatus'20036,550,550'Downhole drilling apparatus'20036,374,924'Downhole drilling apparatus'20025,320,425'Cement mixing system simulator and simulation method'19944,262,632'Electronic livestock identification system'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to HANTON JOHN P (1)· patent assignee history
1981Patents assigned to LEACH HARLEY A (1)· patent assignee history
1994Patents assigned to HALLIBURTON CO (1)· patent assignee history
1994–2021Based in Dyce, GB· patent location history
2002–2003Patents assigned to HALLIBURTON ENERGY SERV INC (3)· patent assignee history
2002–2007Based in Jakarta, ID· patent location history
2003Based in Cilandaf Commercial, ID· patent location history
2017–2021Patents assigned to TERCEL IP LTD (4)· patent assignee history
2017Based in Aberdeen, GB· patent location history
2018Based in Aberdeenshire, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TERCEL IP LTD42017–2021
HALLIBURTON ENERGY SERV INC32002–2003
HALLIBURTON CO11994
HANTON JOHN Pself11981
LEACH HARLEY A11981
Locations
LocationPatentsSpan
Dyce, GB31994–2021
Jakarta, ID22002–2007
Cilandaf Commercial, ID22003
Aberdeenshire, GB12018
Aberdeen, GB12017