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LIU WEN-NENG

Overview
  • Total Patents
    11
About

LIU WEN-NENG has a total of 11 patent applications. Its first patent ever was published in 1997. It filed its patents most often in Taiwan, United Kingdom and Canada. Its main competitors in its focus markets medical technology are TRANSLATIONAL BIOLOG INFUSION CATHETER LLC, ZHEJIANG KANGKANG MEDICAL DEVICES CO LTD and BERTOCCHI GIACOMO.

Patent filings in countries

World map showing LIU WEN-NENGs patent filings in countries
# Country Total Patents
#1 Taiwan 5
#2 United Kingdom 3
#3 Canada 1
#4 Germany 1
#5 Indonesia 1

Patent filings per year

Chart showing LIU WEN-NENGs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Medical technology

Focus technologies

# Technology
#1 Syringes

Top inventors

# Name Total Patents
#1 Liu Wen-Neng 11

Latest patents

Publication Filing date Title
GB9912430D0 Automatic safety infusion catheter needle
GB9901158D0 A multifunctional syringe with safety slide sleeve
TW368422B Multi-purpose safe automatic transfusion catheter needle
TW370463B Multi-purpose safe and automatic transfusion needle
GB9815662D0 An automatic safety infusion catheter needle
TW357094B Multi-purpose safe and automatic vein serum needle
TW367253B Multi-purpose safe automatic infusing catheter needle
TW359621B Safe injector with injection needle pull-back this invention provides a safe injector with injection needle pull-back which comprises: a needle cylinder, a plunger and an injection needle