Inventor
Corey DUFRENE
Inventor
FR
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling50%
F16LPipes50%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2024Patents assigned to NIPPON STEEL CORP (2)· patent assignee history
2022–2024Patents assigned to VALLOUREC OIL & GAS FRANCE (2)· patent assignee history
2022Based in US· patent location history
2024Based in FR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON STEEL CORP | 2 | 2022–2024 |
| VALLOUREC OIL & GAS FRANCE | 2 | 2022–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| FR | 1 | 2024 |
| US | 1 | 2022 |