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CHANGZHOU RUIHUA CHEMICAL ENGINEERING & TECH CO LTD

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    140,547
About

CHANGZHOU RUIHUA CHEMICAL ENGINEERING & TECH CO LTD has a total of 12 patent applications. Its first patent ever was published in 2019. It filed its patents most often in China. Its main competitors in its focus markets organic fine chemistry, environmental technology and macromolecular chemistry and polymers are CHEMICAL TECHNOLOGY ACADEMY OF SHANDONG PROVINCE, CHONGQING HUABANG SHENGKAI PHARMACEUTICAL CO LTD and CHENGDA PHARMACEUTICALS CO LTD.

Patent filings in countries

World map showing CHANGZHOU RUIHUA CHEMICAL ENGINEERING & TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing CHANGZHOU RUIHUA CHEMICAL ENGINEERING & TECH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xu Zhigang 11
#2 Wu Feike 7
#3 Zhang Wenming 5
#4 Zhang Jing 4
#5 Niu Jinsen 4
#6 Yang Beiyu 3
#7 He Chenggang 3
#8 Ni Fengchao 2
#9 Gu Jiahui 2
#10 Zhu Ruyi 1

Latest patents

Publication Filing date Title
CN112174914A Method for gas-phase epoxidation reaction of olefin and hydroperoxide
CN111606835A Method for preparing ethylbenzene hydroperoxide by ethylbenzene oxidation
CN111574318A Energy-saving reaction process for producing ethylbenzene from pure ethylene
CN111848323A Process method for producing styrene by low-water-ratio ethylbenzene dehydrogenation
CN111606834A Concentration method of ethylbenzene hydroperoxide
CN111620759A Method for preparing styrene by gas phase dehydration of phenethyl alcohol
CN111499597A Start-up and stop method of propylene oxide reaction system
CN111569954A Method for removing liquid-phase benzene retained in catalyst of liquid-phase ethylbenzene alkylation and transalkylation reactor by superheated benzene vapor purging
CN111517909A Method for separating small amount of ethylbenzene from alpha-methylbenzyl alcohol dehydration mixed liquid
CN111559819A Method for recovering propylene glycol and other organic matters from propylene epoxidation alkaline washing wastewater
CN111704715A Preparation method of all-para-aromatic polyamide
CN110790678A Method for synthesizing adiponitrile by liquid-phase ammoniation and high-temperature dehydration of adipic acid