LexDanaLexDanabeta
Inventor

Guijun Deng

Inventor
The Woodlands, TX, US

Overview

13→
Patents
2017–2020
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 13 as inventor

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

E21Bprimary
E21BEarth or rock drilling50%
B22FWorking metallic powder8%
F16JPistons8%
B22DCasting of metals4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%
C04BLime, magnesia4%
C22CAlloys4%
G01FMeasuring volume, volume flow, mass flow or liquid level4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
G01VGeophysics4%
PatentTitleYear
10,865,617One-way energy retention device, method and system202010,822,912Multi-layer packer backup ring with closed extrusion gaps202010,704,355Slotted anti-extrusion ring assembly202010,689,942Multi-layer packer backup ring with closed extrusion gaps202010,677,014Multi-layer backup ring including interlock members202010,526,864Seal backup, seal system and wellbore system202010,370,935Packer assembly including a support ring201910,329,870Sealing element backup ring with integrated tab to close extrusion path along a mandrel201910,287,848Structurally supported seal element assembly201910,202,818Expandable sealing assembly and downhole system20199,910,026'High temperature tracers for downhole detection of produced water'20189,840,887'Wear-resistant and self-lubricant bore receptacle packoff tool'20179,714,709'Functionally graded articles and methods of manufacture'2017

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2017–2020Patents assigned to DENG GUIJUN (8)· patent assignee history
2017–2020Patents assigned to XU ZHIYUE (4)· patent assignee history
2017–2020Patents assigned to ZHAO LEI (3)· patent assignee history
2017Patents assigned to BAKER HUGHES INC (2)· patent assignee history
2017–2020Based in The Woodlands, TX, US· patent location history
2018–2020Patents assigned to BAKER HUGHES A GE CO LLC (11)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BAKER HUGHES A GE CO LLC112018–2020
DENG GUIJUNself82017–2020
XU ZHIYUE42017–2020
ZHAO LEI32017–2020
BAKER HUGHES INC22017
Locations
LocationPatentsSpan
The Woodlands, Texas, US132017–2020