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JIAOZUO ZHONGWEI SPECIAL PRODUCTS PHARMACEUTICAL CO LTD

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    143,660
  • Filing trend
    ⇧ 800.0%
About

JIAOZUO ZHONGWEI SPECIAL PRODUCTS PHARMACEUTICAL CO LTD has a total of 13 patent applications. It increased the IP activity by 800.0%. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets chemical engineering, macromolecular chemistry and polymers and environmental technology are IAB IONENAUSTAUSCHER GMBH, SHANGHAI RUNMING PREC TECHNOLOGY CO LTD and ZHEJIANG SATELLITE ENERGY CO LTD.

Patent filings in countries

World map showing JIAOZUO ZHONGWEI SPECIAL PRODUCTS PHARMACEUTICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 13

Patent filings per year

Chart showing JIAOZUO ZHONGWEI SPECIAL PRODUCTS PHARMACEUTICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yang Guoqing 11
#2 Zhang Dongfeng 9
#3 Yan Guangrong 2
#4 Zhang Guoyou 2
#5 Zhang Zunfeng 2
#6 Yang Huayong 2
#7 Ding Shizheng 2
#8 Zhang Yongxiang 2
#9 Zhang Hengjia 1
#10 Ma Wenrui 1

Latest patents

Publication Filing date Title
CN111939513A Method for comprehensively utilizing distillation residual liquid for producing alpha-pyrrolidone and N-vinyl pyrrolidone
CN109276903A A kind of device and method removed and recycle organic solvent in copolyvidone solution
CN109384883A A kind of preparation method of copolyvidone VA64
CN109276904A A kind of high-efficiency polyethylene pyrrolidones continuous rectification reboiler and washing methods
CN109200966A A kind of monomers vinylpyrrolidone self-polymeric reaction kettle and washing methods
CN109482562A A kind of crospovidone washing facility and washing methods
CN109395424A A kind of povidone drying system and drying means
CN109134340A A kind of preparation method of alkali metal 2-Pyrrolidone salt
CN109482125A A kind of n-vinyl pyrrolidone rectification process kettle and application method
CN109485771A A kind of preparation method of crospovidone
CN106883333A A kind of preparation method of big particle diameter PVPP
CN106166559A During a kind of NVP produces, residual substances processes the method reclaimed
CN103102298A Method for producing n-vinyl pyrrolidone