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LI YISHAN

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    139,332
About

LI YISHAN has a total of 14 patent applications. Its first patent ever was published in 1994. It filed its patents most often in China and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets measurement are SCHOPPER LOUIS, VNII BIOLOG METODOV ZASHCHITY and SECOND AFFILIATED HOSPITAL ZHEJIANG UNIVERSITY COLLEGE OF MEDICINE.

Patent filings in countries

World map showing LI YISHANs patent filings in countries

Patent filings per year

Chart showing LI YISHANs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Measurement

Focus technologies

# Technology
#1 Analysing materials

Top inventors

# Name Total Patents
#1 Li Yishan 14

Latest patents

Publication Filing date Title
CN110672752A Multidimensional liquid chromatography separation device
WO2020052511A1 Multi-dimensional liquid chromatographic separation system
CN110346478A Multidimensional liquid chromatographic separation system based on two six-way valves
CN110133162A Multidimensional liquid chromatographic separation system based on two multiple-way valves
CN110161157A Multidimensional liquid chromatographic separation system based on two eight ways valves
CN110025982A Multidimensional liquid chromatographic separation system based on two ten-way valves
CN109900840A Multidimensional liquid chromatographic separation system based on double two position four-way valves
CN109655561A A kind of three-dimensional chromatographic fractionation system based on two ten-way valves
CN109541090A A kind of multidimensional liquid chromatographic separation system based on double two position four-way valves
CN109557221A A kind of multidimensional liquid chromatographic separation system based on two eight ways valves
CN109557194A A kind of three-dimensional liquid chromatographic separation system
CN109557219A A kind of multidimensional liquid chromatographic separation system
CN103193940A Production technology of ABS resin
CN1106879A Job practice of prefabricated pile