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GUIZHOU YINHUAZHUANG DEV CO LTD

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    131,938
  • Filing trend
    ⇩ 25.0%
About

GUIZHOU YINHUAZHUANG DEV CO LTD has a total of 13 patent applications. It decreased the IP activity by 25.0%. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets machine tools, surface technology and coating and consumer goods are POLYMETALLURGICAL CORP, CHENGDU GUTE MACHIENRY WORKS CO LTD and EVG ENTWICKLUNGS U VERWERTUNGS GES M B H.

Patent filings in countries

World map showing GUIZHOU YINHUAZHUANG DEV CO LTDs patent filings in countries
# Country Total Patents
#1 China 13

Patent filings per year

Chart showing GUIZHOU YINHUAZHUANG DEV CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Kaiqiong 12
#2 Zhang Xi 5
#3 Li Kaiyuan 4

Latest patents

Publication Filing date Title
CN110899578A Multi-strand silver wire forming device
CN111014511A Manual winding equipment for multi-strand silver wire
CN111069471A Woven silver wire pressing device
CN109332400A A kind of filamentary silver wire drawing thread rolling apparatus
CN109338381A A kind of silver jeweleries cleaning solution and preparation method
CN109536973A A kind of composition and preparation method of cleaning silver
CN107385424A A kind of seamless welding passivating solution and its application
CN107495562A A kind of processing method of silver jeweleries
CN107442960A A kind of welding procedure of silver jeweleries
CN107604279A A kind of silver jeweleries drawing process
CN106037184A Silver ornament process technique
CN105950901A Wire drawing method for silver ornament
CN105945375A Silver wire knitting and welding method