Inventor
Eric Trevor Ensley
Inventor
Cypress, TX, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling59%
Y10TTechnical subjects covered by former us classification18%
F01DNon-positive displacement machines or engines, e.g. steam turbines6%
F03BMachines or engines for liquids6%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%
F16KValves3%
F16LPipes3%
PatentTitleYear
10,337,638Slow-shift SPM valve20199,869,148'Wellsite connector with floating seal member and method of using same'20189,708,877'Blowout preventer monitoring system and method of using same'20179,580,987'Spherical blowout preventer with energizeable packer seal and method of using same'20179,500,096'Super efficient regulator'20169,428,994'Blowout preventer monitor with trigger sensor and method of using same'20169,410,383'Method and apparatus for connecting tubulars of a wellsite'20169,260,932'Blowout preventer ram assembly and method of using same'20169,022,104'Blowout preventer blade assembly and method of using same'20158,978,698'Blowout preventer monitoring system and method of using same'20158,807,219'Blowout preventer blade assembly and method of using same'20148,720,565'Tubular severing system and method of using same'20148,720,564'Tubular severing system and method of using same'20148,616,861'Super efficient regulator'20138,544,538'System and method for sealing a wellbore'20138,540,017'Method and system for sealing a wellbore'20138,464,525'Subsea power fluid recovery systems'20138,424,607'System and method for severing a tubular'20137,926,501'Subsea pressure systems for fluid recovery'20117,360,603'Methods and apparatuses for wellbore operations'20087,350,587'Pipe guide'20087,055,594'Pipe gripper and top drive systems'20067,051,990'Blowout preventer and movable bonnet support'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2013Based in Houston, TX, US· patent location history
2008–2019Based in Cypress, TX, US· patent location history
2011–2019Patents assigned to NAT OILWELL VARCO LP (19)· patent assignee history
2013–2016Patents assigned to ENSLEY ERIC TREVOR (11)· patent assignee history
2013–2015Patents assigned to SPRINGETT FRANK BENJAMIN (9)· patent assignee history
2013–2015Patents assigned to JOHNSON CHRISTOPHER DALE (6)· patent assignee history
2013–2015Patents assigned to PETERS SHERN EUGENE (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NAT OILWELL VARCO LP | 19 | 2011–2019 |
| ENSLEY ERIC TREVORself | 11 | 2013–2016 |
| SPRINGETT FRANK BENJAMIN | 9 | 2013–2015 |
| JOHNSON CHRISTOPHER DALE | 6 | 2013–2015 |
| PETERS SHERN EUGENE | 5 | 2013–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cypress, Texas, US | 20 | 2008–2019 |
| Houston, Texas, US | 3 | 2006–2013 |