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DONGGUAN GUANGHUA CHEMICAL CO LTD

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    119,360
  • Filing trend
    ⇩ 66.0%
About

DONGGUAN GUANGHUA CHEMICAL CO LTD has a total of 18 patent applications. It decreased the IP activity by 66.0%. Its first patent ever was published in 2012. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, surface technology and coating and optics are INST STATE PHYSICS OF NATURAL, CLICHE AS and TASOPE LTD.

Patent filings in countries

World map showing DONGGUAN GUANGHUA CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 18

Patent filings per year

Chart showing DONGGUAN GUANGHUA CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xiao Hongxing 17
#2 Sun Baolin 13
#3 Ou Sheng 13
#4 Shu Liang 9
#5 Zou Yifang 8
#6 Li Zaiqiang 7
#7 Huang Shiqiang 6
#8 Zhao Zhibin 3
#9 Cheng Yiming 2
#10 Yang Aifeng 2

Latest patents

Publication Filing date Title
CN111170354A Purification device for recovering basic copper carbonate from acidic etching waste liquid and use method thereof
CN109097776A A kind of microetch subtracts copper annex solution and technique
CN107881506A A kind of new-type stripping tin liquor
CN107908084A A kind of new-type inorganic environmental protection moves back film liquid
CN106673048A Method for converting basic copper chloride into basic copper carbonate
CN106637215A Circuit board acid etching waste liquid resource electrolysis oxidizing agent reuse method
CN106191867A A kind of wiring board acidic etching waste liquid resource reusing method
CN106637213A Low copper-biting type tin-fading liquid
CN106064826A A kind of method and apparatus utilizing wiring board acidic etching waste liquid to reclaim copper resource
CN105676599A Developing solution based on new polymers and applied to image developing technology
CN105676600A Anti-corrosion alkaline developing solution
CN105331978A Novel inorganic environment-friendly membrane removing liquid
CN105314668A Method for recovering basic cupric carbonate from circuit board acid etching waste liquor
CN104313583A Precipitant for recycling acidic etching waste liquid, and processing method thereof
CN103695908A Novel organic alkali micro-etching solution
CN102774860A Method for preparing lithium carbonate by brine
CN102634809A Secondary dry film removing liquid
CN102634801A Low-acidity acidic etching regenerant and acidic etching mother liquor thereof