Learn more

LIU YULAN

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    173,878
About

LIU YULAN has a total of 13 patent applications. Its first patent ever was published in 2011. It filed its patents most often in China. Its main competitors in its focus markets chemical engineering, environmental technology and medical technology are SEAIR INC, GUMMI JAEGER GMBH and CAMPBELL E M.

Patent filings in countries

World map showing LIU YULANs patent filings in countries
# Country Total Patents
#1 China 13

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Liu Yulan 13
#2 Zhou Shujuan 1
#3 Wang Yanyan 1

Latest patents

Publication Filing date Title
CN112238641A Concentration device for advanced wastewater treatment
CN112221380A Sewage treatment agent mixing arrangement
CN112209459A Advanced wastewater treatment device
CN112209460A Dispersion even treatment jar that advanced waste treatment used
CN112246131A Water treatment agent mixing arrangement
CN112238008A Treating agent spraying device for sewage treatment
CN112246160A Water treatment agent material mixing device
CN112228348A Input device for wastewater treatment
CN106726077A A kind of support for nursing leg
CN104002002A Dynamic wire conveying measurement and control system of linear cutting machine
CN103503946A Mooncake and preparation method thereof
CN103503947A Biscuit and manufacturing method thereof
CN102166677A Dynamic precision detector for wire transporting system of linear cutting machine