LexDanaLexDanabeta
Inventor

Baozhi Zhu

Inventor
Houston, TX, US

Overview

8→
Patents
2015–2020
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 8 as inventor

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

E21Bprimary
E21BEarth or rock drilling64%
F16JPistons18%
F16LPipes9%
G06FElectric digital data processing9%
PatentTitleYear
10,822,907Wellbore seal energizing ring with retaining feature202010,428,594Alignment guide feature for metal to metal seal protection on mechanical connections and couplings201910,233,711Wellbore seal energizing ring with retaining feature201910,184,311Wellhead seal assembly with lockdown and slotted arrangement201910,025,889Stress amplification factor analysis methodology for assessing fatigue performance of threaded connectors20189,856,710'Tube arrangement to enhance sealing between tubular members'20189,732,582'Wellbore sealing with hybrid wicker system'20179,057,231'Energizing ring divot back-out lock'2015

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015–2020Patents assigned to VETCO GRAY INC (8)· patent assignee history
2015Patents assigned to BARNHART DANIEL R (1)· patent assignee history
2015Patents assigned to GETTE NICHOLAS P (1)· patent assignee history
2015Patents assigned to RAYNAL JEFFREY A (1)· patent assignee history
2015–2020Based in Houston, TX, US· patent location history
2018–2020Patents assigned to VETCO GRAY LLC (5)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
VETCO GRAY INC82015–2020
VETCO GRAY LLC52018–2020
BARNHART DANIEL R12015
GETTE NICHOLAS P12015
RAYNAL JEFFREY A12015
Locations
LocationPatentsSpan
Houston, Texas, US82015–2020