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SHANGHAI ZHENGFAN TECHNOLOGY

Overview
  • Total Patents
    22
  • GoodIP Patent Rank
    194,061
About

SHANGHAI ZHENGFAN TECHNOLOGY has a total of 22 patent applications. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets environmental technology and chemical engineering are JINAN BADUN FERTILIZER CO LTD, YUNNAN YONGCHANG SILICON INDUSTRY CO LTD and VNI K I MYASNOJ PROMY.

Patent filings in countries

World map showing SHANGHAI ZHENGFAN TECHNOLOGYs patent filings in countries
# Country Total Patents
#1 China 22

Patent filings per year

Chart showing SHANGHAI ZHENGFAN TECHNOLOGYs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Li Dongsheng 13
#2 Tang Jianbo 10
#3 Dongsheng Li 5
#4 Min Zhang 5
#5 Zeng Qingteng 4
#6 Xiaolei Gong 3
#7 Zhou Qingmei 3
#8 Wang Zhigao 2
#9 Song Changzheng 2
#10 Gong Xiaolei 2

Latest patents

Publication Filing date Title
CN104965012A Analysis method for content of moisture in electron-grade arsine
CN104925774A Electronic-grade phosphine synthesis and purification device and method
CN104944393A Device and method for obtaining high-purity helium gas through concentration and purification
CN104930342A Steel cylinder filling device and method for high-purity arsine
CN104259160A Method for cleaning polycrystalline silicon reducing furnace by dry method
CN103447264A Device and method for cleaning large concave mirror
CN103408162A Arsenious wastewater treatment method
CN103406090A Preparation method for dry adsorbent used for absorbing ammonia gas
CN103407972A Production method of electronic-grade sulphuric acid
CN102863023A Synthesis and purification method of electronic grade arsines
CN102878423A Electromagnetic induction heating device for liquefied gas
CN102728159A Method for recovering ammonia gas from MOCVD (metallorganic chemical vapor deposition) tail gas
CN102728182A Treatment method of arsenic-containing tail gas
CN102534621A Method for treating acidic etching solution
CN102586780A Acidic etching solution, as well as preparation method and application thereof
CN102230571A Vaporization device and method for liquid source
CN102060271A Method for producing electronic grade hydrochloric acid
CN102139864A Method for producing electronic-grade nitric acid
CN102109092A Electric heating conveying device and conveying method for high-purity liquefied gas
CN102109090A Method for conveying high-flow high-purity liquefied gas