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Inventor

Anton Krijnen

Inventor
Klundert, NL

Overview

10→
Patents
2005–2018
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%
B66DCapstans17%
LOC088%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
9,932,211Line stabilizer20189,796,567'Line stabilizer'20178,752,619'Apparatus for suspending a downhole well string'20148,632,111'Apparatus and method for facilitating handling pipe'20147,753,138'Pipe running tool having internal gripper'20107,699,121'Pipe running tool having a primary load path'20107,303,021'Wellbore rig elevator systems'2007D0533432'Handle'20066,896,048'Rotary support table'20056,845,814'Pipe-gripping structure having load rings'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2014Patents assigned to VARCO INT (7)· patent assignee history
2005–2018Based in Klundert, NL· patent location history
2014–2018Patents assigned to NAT OILWELL VARCO LP (3)· patent assignee history
2014Patents assigned to KRIJNEN ANTON (2)· patent assignee history
2014Patents assigned to MULDER RENE (2)· patent assignee history
2014Patents assigned to BERRY JOE (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
VARCO INT72005–2014
NAT OILWELL VARCO LP32014–2018
KRIJNEN ANTONself22014
MULDER RENE22014
BERRY JOE12014
Locations
LocationPatentsSpan
Klundert, NL102005–2018