LexDanaLexDanabeta
Inventor

Feng Xia

Inventor
Vienna, VA, US

Overview

10→
Patents
2012–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 10 as inventor

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

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication32%
H04WWireless communication networks32%
G06FElectric digital data processing16%
G01RMeasuring electric variables5%
H04BTransmission5%
LOC075%
LOC095%
PatentTitleYear
11,134,385Proximity-based device access2021D0908423Bottle lid2021D0908487Bottle lid202110,855,664Proximity-based logical access202010,771,458Proximity-based user authentication202010,657,242Proximity-based access202010,417,186File migration method and apparatus, and storage device201910,362,033Finding users201910,231,128Proximity-based device access20198,154,304'PCB delivery apparatus PCB testing system employing the same'2012

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012Patents assigned to CHANG YEN-PIN (1)· patent assignee history
2012Patents assigned to HON HAI PREC IND CO LTD (1)· patent assignee history
2012Patents assigned to HONGFUJIN PREC IND SHENZHEN (1)· patent assignee history
2012Based in Shenzhen, CN· patent location history
2019–2021Patents assigned to MICROSTRATEGY INC (6)· patent assignee history
2019–2020Based in Vienna, VA, US· patent location history
2019Based in Chengdu, CN· patent location history
2020–2021Based in Sterling, VA, US· patent location history
2021Patents assigned to ZHEJIANG FEIJIAN TECH CO LTD (2)· patent assignee history
2021Based in Yongkang, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MICROSTRATEGY INC62019–2021
ZHEJIANG FEIJIAN TECH CO LTD22021
CHANG YEN-PIN12012
HON HAI PREC IND CO LTD12012
HONGFUJIN PREC IND SHENZHEN12012
Locations
LocationPatentsSpan
Vienna, Virginia, US42019–2020
Sterling, Virginia, US22020–2021
Yongkang, CN22021
Chengdu, CN12019
Shenzhen, CN12012