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NANJING HECHUANG ENG DESIGN CO LTD

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    122,649
About

NANJING HECHUANG ENG DESIGN CO LTD has a total of 14 patent applications. Its first patent ever was published in 2018. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, environmental technology and chemical engineering are WEI XIONGHUI, REINLUFT G M B H and ECO BIO HOLDINGS CO LTD.

Patent filings in countries

World map showing NANJING HECHUANG ENG DESIGN CO LTDs patent filings in countries
# Country Total Patents
#1 China 14

Patent filings per year

Chart showing NANJING HECHUANG ENG DESIGN CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhang Yubin 5
#2 Chi Zhikui 5
#3 Feng Jieyu 3
#4 Zhang Sha 2
#5 Ma Aihua 2
#6 Dou Jing 2
#7 Guo Panpan 2
#8 Chen Dan 1
#9 Kang Rongxin 1
#10 Gu Qing 1

Latest patents

Publication Filing date Title
CN111123863A Optimal energy-saving control method and system for circulating water system of large caprolactam device
CN110917556A Chlorosilane and high polymer leakage cleaning system
CN110923725A Method for removing scaling substances of chlorination device for methane chloride
CN110921673A Method for producing optical fiber grade silicon tetrachloride
CN110917779A Tail gas filtering system for wet-process phosphoric acid reaction
CN110921672A Method for STC vaporization and hydrogen mixing
CN110921728A Be applied to processing apparatus of methane chloride waste lye
CN110898581A Method for treating ammonia-rich tail gas of high-purity ammonia plant
CN110898572A Chemical industry tail gas's processing system
CN110902684A Preparation process of low-boron-phosphorus high-purity silicon
CN110902686A Production method of polycrystalline silicon
CN110902687A Cold hydrogenation high-impurity-content slag slurry recovery device
CN110902688A Slag slurry treatment method in cold hydrogenation process
CN110898601A Rich ammonia tail gas filtration system of high-purity ammonia mill