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Inventor

Yongnan Xuan

Inventor
Shenzhen, Guangdong Province, CN

Overview

3→
Patents
1995–2009
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

G06Fprimary
G06FElectric digital data processing33%
H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner33%
H04BTransmission33%
PatentTitleYear
7,499,026'System and method for inputting graphs and words'20097,383,025'Method for processing RF signals for receiving and transmission'20085,434,522'Frequency doubler circuit having a diode quad with a grounded port'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995Patents assigned to MPR TELTECH LTD (1)· patent assignee history
1995Based in Burnaby, CA· patent location history
2008–2009Patents assigned to FENG SUILI (2)· patent assignee history
2008–2009Patents assigned to XUAN YONGNAN (2)· patent assignee history
2008–2009Based in Shenzhen, Guangdong Province, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FENG SUILI22008–2009
XUAN YONGNANself22008–2009
MPR TELTECH LTD11995
Locations
LocationPatentsSpan
Shenzhen, Guangdong Province, CN22008–2009
Burnaby, CA11995