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Inventor

Xiangdong Ruan

Inventor
Nanjing, CN

Overview

2→
Patents
2015
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

G06Fprimary
G06FElectric digital data processing25%
H04LTransmission of digital information, e.g. telegraphic communication25%
H04MTelephonic communication25%
H04WWireless communication networks25%
PatentTitleYear
9,226,159'Telephone call challenge to block spam'20159,111,073'Password protection using pattern'2015

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015Patents assigned to CAO JING (2)· patent assignee history
2015Patents assigned to JIANG JULIANG (2)· patent assignee history
2015Patents assigned to RUAN XIANGDONG (2)· patent assignee history
2015Patents assigned to TREND MICRO INC (2)· patent assignee history
2015Based in Nanjing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CAO JING22015
JIANG JULIANG22015
RUAN XIANGDONGself22015
TREND MICRO INC22015
Locations
LocationPatentsSpan
Nanjing, CN22015