Inventor
Mehdi Hashemian
Inventor
Kingwood, TX, US
Overview
Patents· 1 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling100%
PatentTitleYear
9,938,793Spherical blow out preventer annular seal2018Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2018Patents assigned to FREUDENBERG OIL & GAS LLC (1)· patent assignee history
2018Based in Kingwood, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FREUDENBERG OIL & GAS LLC | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kingwood, Texas, US | 1 | 2018 |