LexDanaLexDanabeta
Inventor

Darrin L. Yenzer

Inventor
Cypress, TX, US

Overview

2→
Patents
2010–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

E21Bprimary
E21BEarth or rock drilling100%
PatentTitleYear
11,098,550Blowout preventer with wide flange body20217,748,445'Top drive with shaft seal isolation'2010

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2010Patents assigned to NAT OILWELL VARCO LP (1)· patent assignee history
2010–2021Based in Cypress, TX, US· patent location history
2021Patents assigned to CAMERON INT CORP (1)· patent assignee history
2021Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CAMERON INT CORP12021
NAT OILWELL VARCO LP12010
SCHLUMBERGER TECHNOLOGY CORP12021
Locations
LocationPatentsSpan
Cypress, Texas, US22010–2021