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Inventor

Qiaoyu Xu

Inventor
Shenzhen, CN

Overview

2→
Patents
2007–2018
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 2 as inventor

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

B23Bprimary
B23BTurning20%
G06FElectric digital data processing20%
H04LTransmission of digital information, e.g. telegraphic communication20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
9,900,355'Method, terminal device, server and system for sharing information'20187,246,801'Self-tightening keyless chuck'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007Patents assigned to SHANXI HUIFENG POWER TOOLS CO (1)· patent assignee history
2007Based in Changzhi, CN· patent location history
2018Patents assigned to TENCENT TECH SHENZHEN CO LTD (1)· patent assignee history
2018Based in Shenzhen, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHANXI HUIFENG POWER TOOLS CO12007
TENCENT TECH SHENZHEN CO LTD12018
Locations
LocationPatentsSpan
Shenzhen, CN12018
Changzhi, CN12007