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CHANGZHOU WATSON FINE CHEMICAL CO LTD

Overview
  • Total Patents
    20
  • GoodIP Patent Rank
    95,524
  • Filing trend
    ⇩ 76.0%
About

CHANGZHOU WATSON FINE CHEMICAL CO LTD has a total of 20 patent applications. It decreased the IP activity by 76.0%. Its first patent ever was published in 2008. It filed its patents most often in China. Its main competitors in its focus markets organic fine chemistry, chemical engineering and measurement are YUANJIANG HUALONG CATALYST TECH CO LTD, SHANDONG JINCHENG PHARMACEUTICAL & CHEMICAL CO LTD and RAVENSBERG G M B H.

Patent filings in countries

World map showing CHANGZHOU WATSON FINE CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 20

Patent filings per year

Chart showing CHANGZHOU WATSON FINE CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sun Kezhou 11
#2 Li Dajuan 7
#3 Li Honggong 5
#4 Wei Xinghong 4
#5 Wan Zhibing 4
#6 Wang Zhichao 4
#7 Cao Wei 4
#8 Chao Guoping 3
#9 Wang Mingfeng 3
#10 Chen Hongyuan 2

Latest patents

Publication Filing date Title
CN110183393A A method of preparing sharp naphthalene oxazolone intermediate
CN110256352A A kind of preparation method of high-purity Fipronil
CN109651386A A kind of synthetic method of oxolinic acid
CN109651198A A kind of synthetic method of dimethylamino diethyl methylenemalonate
CN108892671A A kind of preparation method of pyroxsulam
CN107814772A The process for purification of the rosickyite yl pyrimidines ester of 4,6 dichloro, 5 amino 2
CN107814759A The preparation method of fluopicolide
CN106831492A A kind of preparation method of phenylurea herbicide
CN106896170A A kind of each liquid phase analysis method about material of pyridate
CN106905192A One planting sand storehouse must bent intermediate purification process
CN106905263A A kind of preparation method of 4 (piperizinylmethyl of 4 methyl 1) benzoic acid dihydrochlorides
CN106866512A A kind of preparation method of the trifluoromethyl pyridine of 2 hydroxyl 6
CN106905265A N [4 cyano group 3(Trifluoromethyl)Phenyl] methyl propanamide of 2,3 epoxy 2 preparation method
CN106905161A A kind of synthetic method of the nitrobenzoic acid of 2 chlorine, 4 fluorine 5
CN106831600A The preparation method of the dichloro-pyridazine of 3 phenyl 46
CN106810530A One pot of preparation method of the Ben Bing bis- Evil of 2,2 difluoro 1,3 cyclopentadienyls
CN106866424A The batch (-type) preparation method of N methyl isopropylamines
CN106810575A A kind of preparation method of chlorinated diphenyl phosphate
CN102807528A Preparation method of 10-methoxy iminostilbene
CN101323595A Synthetic method 1,2-dimethyl-1,4,5,6-tetrahydrochysene pyrimidine