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CHONGYI ZHANGYUAN TUNGSTEN CO LTD

Overview
  • Total Patents
    71
  • GoodIP Patent Rank
    30,416
  • Filing trend
    ⇩ 22.0%
About

CHONGYI ZHANGYUAN TUNGSTEN CO LTD has a total of 71 patent applications. It decreased the IP activity by 22.0%. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy, environmental technology and micro-structure and nano-technology are JINDUICHENG MOLYBDENUM CO LTD, NANODYNE INC and VITAL MAT CO LIMITED.

Patent filings in countries

World map showing CHONGYI ZHANGYUAN TUNGSTEN CO LTDs patent filings in countries
# Country Total Patents
#1 China 71

Patent filings per year

Chart showing CHONGYI ZHANGYUAN TUNGSTEN CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhao Lifu 24
#2 Xu Guozuan 22
#3 Huang Zehui 21
#4 Deng Dengfei 18
#5 Li Hongchao 16
#6 Lifu Zhao 9
#7 Deng Shenghua 8
#8 Gong Dandan 7
#9 Fu Yu 7
#10 Xie Fuxu 7

Latest patents

Publication Filing date Title
CN112253208A Ventilation patio improved by using pedestrian well of mine stope and improvement method thereof
CN112159946A Anti-sticking coating, carbon-based boat and preparation method of anti-sticking coating
CN112209446A Method for recycling Cr-containing tungsten carbide waste and application thereof
CN112101744A Mineral aggregate distribution method and device and computer readable storage medium
CN111940753A System and method for preparing ultra-coarse tungsten powder
CN112045198A System and method for preparing uniform ultra-coarse tungsten powder
CN112077303A Rod and wire continuous row die and manufacturing method thereof
CN111940751A Method for preparing ultra-coarse tungsten powder with narrow particle size distribution and ultra-coarse tungsten powder
CN111908506A Method for preparing high-purity nano chromium oxide and high-purity nano chromium oxide
CN111069618A WC-Co composite powder and preparation method and application thereof
CN110976902A Tungsten powder and preparation method and application thereof
CN110433716A Sample decentralized system
CN110079664A The method of Tungsten smelting waste residue arsenic removal
CN109551067A Spark machine electrode
CN109592640A Hydrogen purification system and method
CN109266941A Slab-shaped tungsten carbide-cobalt alloy and preparation method thereof
CN109402379A The method of tungstenic solid arsenic removal
CN109457107A The method of tungstenic solid fluorine removal
CN108715246A Charging gear and weighing system for weighing system
CN108706634A Purify the device and method of ammonium tungstate solution