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LIU CHANGMIN

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    159,201
About

LIU CHANGMIN has a total of 12 patent applications. Its first patent ever was published in 1993. It filed its patents most often in China. Its main competitors in its focus markets chemical engineering, civil engineering and machines are JIANGSU JINMAO CONSTRUCTION GROUP CO LTD, PFT GMBH and PI PROEKTKHIMZASHCHITA.

Patent filings in countries

World map showing LIU CHANGMINs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing LIU CHANGMINs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Changmin 11
#2 Changmin Liu 1
#3 Hongwei Li 1
#4 Cheng Zhiwen 1
#5 Wang Feng 1
#6 Hao Yanzhang 1
#7 Geng Tianzhong 1
#8 Gao Xinfu 1

Latest patents

Publication Filing date Title
CN111688019A Concrete mixer of high dispersion type convenient to dismantle
CN111672381A Slurry mixing stirring device for building construction
CN111716422A Safe type material cutting device of builder's construction
CN111687344A Anti-backing steel bar drawing seat
CN111623221A Case is settled in building engineering check out test set's heat dissipation protection
CN111686605A Building sanitizer adds and mixes and uses agitator
CN111687034A Sieving mechanism for construction
CN111691709A Processing shed for building construction
CN111521763A Concrete slump testing arrangement for construction
CN111688035A Automatic proportioning device of concrete for construction
CN105709327A Medicine interventional treatment device for medical oncology
CN1077862A A kind of peanut food