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Inventor

Jiaqing Yu

Inventor
Houston, TX, US

Overview

14→
Patents
2006–2020
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 14 as inventor

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

E21Bprimary
E21BEarth or rock drilling52%
Y10TTechnical subjects covered by former us classification24%
B22FWorking metallic powder8%
F16JPistons8%
G06FElectric digital data processing4%
LOC154%
PatentTitleYear
D0875147Drill bit2020RE047369Rolling cutter20199,850,717Methods for designing fixed cutter bits and bits made using such methods20179,187,962'Methods of attaching rolling cutters in fixed cutter bits using sleeve, compression spring, and/or pin(s)/ball(s)'20159,033,070'Rolling cutter'20158,800,691'Rolling cutter'20148,413,746'Rolling cutter'20138,091,655'Rolling cutter'20127,757,789'Drill bit and insert having bladed interface between substrate and coating'20107,703,559'Rolling cutter'20107,543,661'Roller cone bits with wear and fracture resistant surface'20097,347,290'Multi-part energizer for mechanical seal assembly'20087,188,691'Metal seal with impact-absorbing ring'20077,048,080'Roller cone bits with wear and fracture resistant surface'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2019Patents assigned to SMITH INTERNATIONAL (13)· patent assignee history
2006–2014Based in Houston, TX, US· patent location history
2012–2015Patents assigned to SHEN YUELIN (3)· patent assignee history
2012–2015Patents assigned to YU JIAQING (3)· patent assignee history
2012–2015Patents assigned to ZHANG YOUHE (3)· patent assignee history
2012–2013Patents assigned to KESHAVAN MADAPUSI K (2)· patent assignee history
2015–2019Based in Conroe, TX, US· patent location history
2020Based in Hunan, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SMITH INTERNATIONAL132006–2019
SHEN YUELIN32012–2015
YU JIAQINGself32012–2015
ZHANG YOUHE32012–2015
KESHAVAN MADAPUSI K22012–2013
Locations
LocationPatentsSpan
Houston, Texas, US92006–2014
Conroe, Texas, US42015–2019
Hunan, CN12020