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HENAN YUGUANG GOLD & LEAD CO

Overview
  • Total Patents
    64
  • GoodIP Patent Rank
    46,988
  • Filing trend
    ⇩ 40.0%
About

HENAN YUGUANG GOLD & LEAD CO has a total of 64 patent applications. It decreased the IP activity by 40.0%. Its first patent ever was published in 2005. It filed its patents most often in China. Its main competitors in its focus markets environmental technology, materials and metallurgy and surface technology and coating are SINO PLATINUM METALS RESOURCES YIMEN CO LTD, NICOSEP ASSOCIATES and STOEV.

Patent filings in countries

World map showing HENAN YUGUANG GOLD & LEAD COs patent filings in countries
# Country Total Patents
#1 China 64

Patent filings per year

Chart showing HENAN YUGUANG GOLD & LEAD COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chuanhe Zhao 11
#2 Liu Suhong 11
#3 Suhong Liu 10
#4 Zhao Chuanhe 10
#5 Wang Yongjun 10
#6 Zhao Zhenbo 9
#7 Li Weifeng 9
#8 Yang Ming 8
#9 Li Gui 8
#10 Heping Zhang 8

Latest patents

Publication Filing date Title
CN112143909A Method for smelting secondary lead by lead plaster desulfurization gold-catching
CN112063854A Method for comprehensively recovering bismuth, silver and copper metals by taking precious lead as raw material
CN111826529A Separation smelting method of high-arsenic high-lead copper alloy
CN111334671A Short-process high-recovery-rate smelting method for chalcocite
CN111154984A Method for separating lead, arsenic and copper from high-lead high-arsenic copper slag
CN111172409A Recovery smelting process of tin-containing material
CN111088433A Method for enriching and recovering thallium from lead smelting system
CN110129615A A kind of cable cover(ing) Pb-Cu alloy and its smelting process
CN109821855A A kind of the dry type dismantling recyclable device and dry type dismantling recovery system of maintenance-free battery
CN109818098A A kind of dry type recovery process of waste and old maintenance-free battery
CN109877387A A kind of dry type disassembling apparatus of maintenance-free battery
CN109022799A The device and its smelting technology of the continuous two-part melting earth of positive pole of one
CN108239705A A kind of zinc leaching residue processing dual chamber Double bottom side-blown converter and its processing method
CN108165745A A kind of method of a variety of valuable metals of jamesonite side-blown converter continuous processing synthetical recovery
CN107460318A A kind of zinc oxide leaches the removal methods of iron in liquid after heavy indium
CN107604182A The device and its production method of bismuth are continuously refined in a kind of bismuth sulfide ore and bismuth oxide ore mining with bottom blowing molten pool melting
CN107227409A A kind of bottom side-blowing bath reduction furnace for liquid high lead dross
CN107460340A A kind of quick blow-in method of copper bottom-blown smelting stove
CN107377202A The beneficiation method of copper is reclaimed in a kind of slag from blowing
CN106435654A Elimination method for cathode plate copper liquid level line white crystals in copper electrolytic refining