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ZHEJIANG HUAHAI PHARM CO LTD

Overview
  • Total Patents
    457
  • GoodIP Patent Rank
    5,446
  • Filing trend
    ⇩ 16.0%
About

ZHEJIANG HUAHAI PHARM CO LTD has a total of 457 patent applications. It decreased the IP activity by 16.0%. Its first patent ever was published in 2004. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and chemical engineering are ZENO ROYALTIES & MILESTONES LLC, LAURUS LABS PRIVATE LTD and TAXIS PHARMACEUTICALS INC.

Patent filings in countries

World map showing ZHEJIANG HUAHAI PHARM CO LTDs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Zhang Wenling 97
#2 Wang Peng 86
#3 Huang Luning 49
#4 Gu Hong 44
#5 Chen Hao 29
#6 Junqing Peng 28
#7 Huang Wenfeng 28
#8 Zhu Yuanxun 28
#9 Qiaoxia Li 27
#10 Gongyun Hu 26

Latest patents

Publication Filing date Title
CN112159398A Preparation method of paroxetine hydrochloride
CN111956779A Preparation method of perindopril tert-butylamine salt composition
CN111747926A Improved method for synthesis process of free hydroxypiperone alkali
CN111747862A Method for recovering pregabalin intermediate 3-isobutyl glutaric acid monoamide
CN111732627A Synthesis method of lisinopril impurity J
CN111635325A Method for preparing metoprolol succinate
CN111812227A Method for analyzing benserazide impurity A in poly-barserazide compound preparation
CN111494331A Lacosamide medicine oral preparation and preparation method thereof
CN110793730A Method for analyzing package integrity of injection by color water method
CN110794140A Method for detecting bacterial endotoxin of insoluble injection
CN110702830A High performance liquid chromatography detection method for isomer in irinotecan hydrochloride injection
CN110790755A Improved preparation method of canagliflozin peroxide
CN110632319A Method for detecting bacterial endotoxin in glacial acetic acid
CN110487931A The analysis method of one kind (E) -4- phenyl -4- oxo -2- butenoic acid ethyl
WO2021022516A1 Valsartan refinement method
WO2020252662A1 Method for refining valsartan compound
CN110256264A A kind of synthetic method of Memantine glycine
CN109928932A A kind of Telmisartan methylene dimer and preparation method thereof
CN109942453A A kind of new impurity and synthetic method of Valsartan
CN110003074A A kind of preparation method of levetiracetam intermediate