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Inventor

Derek Copold

Inventor
Sugar Land, TX, US

Overview

6→
Patents
2013–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 6 as inventor

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

E21Bprimary
E21BEarth or rock drilling100%
PatentTitleYear
10,907,431Fishing tool receiver with locking collar202110,781,647Downhole roller202010,662,712Modular electro-mechanical assembly for downhole device202010,125,545Placement of stabilizers, standoffs, and rollers on a downhole tool string20188,910,720'Downhole tool with roller screw assembly'20148,602,115'Grip enhanced tractoring'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2021Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (6)· patent assignee history
2013–2014Patents assigned to AGUIRRE FRANZ (2)· patent assignee history
2013–2014Patents assigned to COPOLD DEREK (2)· patent assignee history
2013–2014Patents assigned to DUPREE WADE D (2)· patent assignee history
2013–2014Patents assigned to HOLLY MARK (2)· patent assignee history
2013–2021Based in Sugar Land, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHLUMBERGER TECHNOLOGY CORP62013–2021
AGUIRRE FRANZ22013–2014
COPOLD DEREKself22013–2014
DUPREE WADE D22013–2014
HOLLY MARK22013–2014
Locations
LocationPatentsSpan
Sugar Land, Texas, US62013–2021