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LI WENHENG

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    206,598
  • Filing trend
    ⇩ 100.0%
About

LI WENHENG has a total of 11 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 1998. It filed its patents most often in China. Its main competitors in its focus markets chemical engineering, agriculture and foods and drinks are ZHENG AN COUNTY RUIYUAN TEA INDUSTRY CO LTD, HUNAN LVHAI RICE & OIL LTD CO and LIU FEIYUN.

Patent filings in countries

World map showing LI WENHENGs patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

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

Focus technologies

Top inventors

# Name Total Patents
#1 Li Wenheng 11
#2 Li Zhichang 1
#3 Li Wenyun 1
#4 Li Hongguang 1
#5 Li Zhenquan 1
#6 Ren Gaozhong 1
#7 Zhao Ruyu 1

Latest patents

Publication Filing date Title
CN107398420A Tea finishing machine
CN107413714A Tealeaves cleaning machine
CN105900693A Field grifola basket culture device and method
CN104488543A Woodland bundled stick polyporus umbellatus cultivation method
CN103168627A Method for culturing black fungus by small cut logs in greenhouse
CN1251940A Resistor-type graded current reducing switch
CN1290983A Single line power transmission system
CN1271246A Armouring of heating cable by means of eddy current and resistive heat
CN1255579A Method for heating steel tube by winding single-core cable arround it
CN1245364A Phase, frequency, current and voltage converter
CN1229257A Variable-phase, variable-frequency transformer capable of holding three-phase input current balance