LexDanaLexDanabeta
Inventor

David L. Verzwyvelt

Inventor
West Columbia, TX, US

Overview

6→
Patents
2008–2014
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 drilling86%
F16LPipes14%
PatentTitleYear
8,752,635'Downhole wet mate connection'20148,061,430'Re-settable and anti-rotational contraction joint with control lines'20117,798,212'System and method for forming downhole connections'20107,510,003'Downhole connection system'20097,503,395'Downhole connection system'20097,398,822'Downhole connection system'2008

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2008–2014Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (6)· patent assignee history
2008–2014Based in West Columbia, TX, US· patent location history
2011–2014Patents assigned to VERZWYVELT DAVID (2)· patent assignee history
2011Patents assigned to DU MICHAEL H (1)· patent assignee history
2011Patents assigned to ENDRUHN CLAUS (1)· patent assignee history
2014Patents assigned to DU MICHAEL HUI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHLUMBERGER TECHNOLOGY CORP62008–2014
VERZWYVELT DAVIDself22011–2014
DU MICHAEL H12011
DU MICHAEL HUI12014
ENDRUHN CLAUS12011
Locations
LocationPatentsSpan
West Columbia, Texas, US62008–2014