Inventor
Pierre Dutilleul
Inventor
Jeanlain, FR
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling43%
F16LPipes43%
G01MTesting static or dynamic balance of machines or structures14%
PatentTitleYear
7,997,627'Threaded joint for steel pipes'20117,997,120'Method for pressure testing a threaded component'20117,334,821'Premium threaded tubular joint comprising at least a threaded element with end lip'20086,312,024'Threaded assembly of metal tubes designed to contain a corrosive fluid'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2011Patents assigned to VALLOUREC MANNESMANN OIL & GAS (4)· patent assignee history
2001–2011Based in Jenlain, FR· patent location history
2008–2011Patents assigned to SUMITOMO METAL IND (2)· patent assignee history
2008–2011Based in Jeanlain, FR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| VALLOUREC MANNESMANN OIL & GAS | 4 | 2001–2011 |
| SUMITOMO METAL IND | 2 | 2008–2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Jeanlain, FR | 2 | 2008–2011 |
| Jenlain, FR | 2 | 2001–2011 |