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LI FENGNING

Overview
  • Total Patents
    35
About

LI FENGNING has a total of 35 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 environmental technology are ISOBE SHIGERU, MO XIAOMAN and KAWASE MASAO.

Patent filings in countries

World map showing LI FENGNINGs patent filings in countries
# Country Total Patents
#1 China 35

Patent filings per year

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

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Li Fengning 34
#2 Fengning Li 1

Latest patents

Publication Filing date Title
CN101058954A Multi-stage single drum rotor pressure screen
CN101058950A Modified Cylinder fluffer
CN101058949A Cylinder fluffer
CN101070685A Multi-stage double-drum rotary-wing pressure sieve
CN1963015A Blade device for high-speed pulp washer
CN1924186A Continuous high density hydraulic pulper
CN1932147A Flow increasing pressure sieve rotor
CN1804211A Rotary wing type pressure screen with inside and outside drums
CN1724809A Hydraulic pulp kneader rotor
CN1730158A Straw slices purifying machine
CN1696400A Multistage sieve for paper pulp
CN1667183A Grass sheet impurity removing machine
CN1657692A Middle high density hydraulic pulper
CN1657693A Rotor of hydraulic pulper
CN1657697A Deink machine
CN1657698A Outflow pressure screen rotary blade
CN1590642A Rotor blade for paper making pulp pressure pulp screening machine
CN1530491A Stator and rotor matching accuracy adjustable method for paste mill
CN1519425A Method for removing heteroproteose cells in chemical or in semi chemical straw pulp of rice and wheat
CN1490460A Paper pulp pressure prewater extractor for double-net wash engine