Inventor
James David Dowell
Inventor
Sugar Land, TX, US
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling67%
G01FMeasuring volume, volume flow, mass flow or liquid level33%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2010–2015Patents assigned to CHEVRON USA INC (2)· patent assignee history
2010Based in Sugarland, TX, US· patent location history
2015Patents assigned to DOWELL JAMES DAVID (1)· patent assignee history
2015Patents assigned to THOMPSON MELVIN CLARK (1)· patent assignee history
2015Based in Sugar Land, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHEVRON USA INC | 2 | 2010–2015 |
| DOWELL JAMES DAVIDself | 1 | 2015 |
| THOMPSON MELVIN CLARK | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sugar Land, Texas, US | 1 | 2015 |
| Sugarland, Texas, US | 1 | 2010 |