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ZHEJIANG NHU CO LTD

Overview
  • Total Patents
    223
  • GoodIP Patent Rank
    9,589
  • Filing trend
    ⇧ 166.0%
About

ZHEJIANG NHU CO LTD has a total of 223 patent applications. It increased the IP activity by 166.0%. Its first patent ever was published in 2003. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets organic fine chemistry, chemical engineering and foods and drinks are RENNOVIA INC, MITSUBISI KEMIKAL CORP and XIMO AG.

Patent filings per year

Chart showing ZHEJIANG NHU CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chen Zhirong 79
#2 Li Haoran 39
#3 Li Qichuan 38
#4 Hu Baishan 37
#5 Mao Jianyong 32
#6 Zhang Yuhong 27
#7 Qian Hongsheng 25
#8 Yu Ming 24
#9 Wang Yu 21
#10 Qiu Guisheng 20

Latest patents

Publication Filing date Title
CN112010802A Continuous preparation method of 3-methylpyridine
CN111903846A Stable carotenoid microcapsule with high bioavailability and preparation method thereof
US10974225B1 Metal oxide coated ceramic corrugated plate catalyst, preparation and application in preparation of key intermediates of citral
CN111689847A Preparation method of aryl propionic acid compound
CN111233618A Method for preparing chloroethylene compounds by using phosgene
CN111995547A Process and apparatus for the preparation of adiponitrile
CN111153869A Method for preparing oxazole compound
CN111167471A Metal oxide coated ceramic corrugated plate catalyst, preparation and application thereof in preparation of citral key intermediate
CN111116523A System and process for producing α -chloro- α -acetyl-gamma-butyrolactone
CN111039743A Method for isomerizing isopropyl toluene by using solid catalyst
CN111035015A Water-insoluble fat-soluble nutrient microcapsule and preparation method thereof
CN110918086A Supported rare earth modified metal catalyst and preparation method and application thereof
CN110885354A Preparation method of 7-ketone-cholesterol acetate
WO2021062916A1 Method for catalytically synthesizing ketoisophorone using perovskite-type composite oxide
CN110776484A Preparation method of vitamin C palmitate
US2020070138A1 Composite catalyst, method for manufacturing composite catalyst and application thereof
CN110746281A Preparation method of 3-bromo-4-hydroxybenzaldehyde
WO2020088294A1 Device for evaporation and crystallization
CN110698439A Process for preparing D-pantolactone by bipolar membrane method
CN110586081A Palladium-carbon catalyst and preparation method and application thereof