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Inventor

Yongchao Liang

Inventor
Irvine, CA, US

Overview

3→
Patents
1998–2021
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

A63Fprimary
A63FCard, board, or roulette games17%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds17%
G01NInvestigating or analysing materials by determining their chemical or physical properties17%
G01SRadio direction-finding17%
H04LTransmission of digital information, e.g. telegraphic communication17%
H04WWireless communication networks17%
PatentTitleYear
11,119,107Ultraviolet absorbing polymeric dyes and methods for using the same202110,097,420Method and apparatus for determining area in which IP address is located20185,791,987'Method for users to play the kung-ming chess on micro-processor-based systems'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998Patents assigned to INVENTEC CORP (1)· patent assignee history
1998Based in Shilin, TW· patent location history
2018Patents assigned to TENCENT TECH SHENZHEN CO LTD (1)· patent assignee history
2018Based in Shenzhen, CN· patent location history
2021Patents assigned to BECTON DICKINSON CO (1)· patent assignee history
2021Based in Irvine, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BECTON DICKINSON CO12021
INVENTEC CORP11998
TENCENT TECH SHENZHEN CO LTD12018
Locations
LocationPatentsSpan
Irvine, California, US12021
Shenzhen, CN12018
Shilin, TW11998