LexDanaLexDanabeta
Inventor

Jiaqing Yu

Inventor
Hunan, CN

Overview

3→
Patents
2019–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 3 as inventor

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

E21Bprimary
E21BEarth or rock drilling50%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light25%
Y10TTechnical subjects covered by former us classification25%
PatentTitleYear
10,975,628Drill bit nozzle and drill bit2021RE048455Rolling cutter202110,480,993Cylindrical package2019

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2019Patents assigned to EZCONN CORP (1)· patent assignee history
2019Based in Taipei, TW· patent location history
2021Patents assigned to SEED TECH CORP LTD (1)· patent assignee history
2021Patents assigned to SMITH INTERNATIONAL (1)· patent assignee history
2021Based in Hunan, CN· patent location history
2021Based in Conroe, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EZCONN CORP12019
SEED TECH CORP LTD12021
SMITH INTERNATIONAL12021
Locations
LocationPatentsSpan
Hunan, CN12021
Conroe, Texas, US12021
Taipei, TW12019