LexDanaLexDanabeta
Inventor

Stephane J. Virally

Inventor
Sugar Land, TX, US

Overview

9→
Patents
2004–2011
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 9 as inventor

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

E21Bprimary
E21BEarth or rock drilling100%
PatentTitleYear
7,866,708'Joining tubular members'20117,493,959'Joining tubular members'20097,380,616'Automatic downlink system'20087,320,370'Automatic downlink system'20087,198,102'Automatic downlink system'20077,128,160'Method and apparatus to selectively reduce wellbore pressure during pumping operations'20067,128,152'Method and apparatus to selectively reduce wellbore pressure during pumping operations'20066,808,020'Debris-free valve apparatus and method of use'20046,732,803'Debris free valve apparatus'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2011Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (9)· patent assignee history
2004Based in Houston, TX, US· patent location history
2006–2011Based in Sugar Land, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHLUMBERGER TECHNOLOGY CORP92004–2011
Locations
LocationPatentsSpan
Sugar Land, Texas, US72006–2011
Houston, Texas, US22004