Inventor
JIMMIE ROBERT WILLIAMSON
Inventor
US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling70%
F16KValves30%
PatentTitleYear
11,643,905Electric safety valve with annulus/section pressure activation202311,274,523Variable torque flapper valve202211,248,441Electric safety valve with well pressure activation202211,208,870Flapper valve with beam spring202111,203,917Equalizing device for safety valves202111,180,974Insert safely valve202111,136,861Mechanisms for transferring hydraulic regulation from a primary safety valve to a secondary safety valve2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2023Patents assigned to HALLIBURTON ENERGY SERVICES INC (7)· patent assignee history
2021–2023Based in US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HALLIBURTON ENERGY SERVICES INC | 7 | 2021–2023 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 7 | 2021–2023 |