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ZHEJIANG LONGYOU DAOMING OPTICS & CHEMICAL CO LTD

Overview
  • Total Patents
    31
  • GoodIP Patent Rank
    53,693
  • Filing trend
    ⇧ 50.0%
About

ZHEJIANG LONGYOU DAOMING OPTICS & CHEMICAL CO LTD has a total of 31 patent applications. It increased the IP activity by 50.0%. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets basic materials chemistry, macromolecular chemistry and polymers and optics are JIANGSU AQUASET NEW MAT CO LTD, SUZHOU TAILUN ELECTRONIC MAT CO LTD and ZHEJIANG OUREN NEW MAT CO LTD.

Patent filings in countries

World map showing ZHEJIANG LONGYOU DAOMING OPTICS & CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 31

Patent filings per year

Chart showing ZHEJIANG LONGYOU DAOMING OPTICS & CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hu Feng 13
#2 Wang Chen 12
#3 Shu Linfei 12
#4 Wu Weibin 11
#5 Liu Mei 11
#6 Zheng Xiaoping 9
#7 Hu Minchao 8
#8 Hu Lingjing 7
#9 Zhang Sizhe 7
#10 Sun Fei 7

Latest patents

Publication Filing date Title
CN112278947A Non-glue tube replacing and winding mechanism
CN112280416A Manufacturing method of transfer film release agent
CN112226183A Removable pressure sensitive adhesive composition
CN112051632A High-brightness black glass bead type license plate grade reflective film and preparation method thereof
CN112093536A Automatic tube filling machine
CN112048212A Preparation method of resin-based carbon ribbon printing ink
CN112063232A Blue ink for motor vehicle license plate
CN111662591A Preparation method of outdoor high-weather-resistance weak-solvent spray-painting ink
CN111393698A Manufacturing method of high-weather-resistance soft film for reflective material
CN111515109A Process for making washing-resistant high-brightness color reflecting product
CN111087968A Preparation method of washing-resistant flame-retardant modified adhesive composition
CN110903775A Manufacturing method of high-weather-resistance fragile label material
CN110804340A Single-component silk-screen printing ink for treatment-free PET (polyethylene terephthalate) material
CN110713811A Method for manufacturing high-elasticity pressure-sensitive adhesive for reflective film
CN110749947A Method for manufacturing high-visual-contrast reflective film
CN110295017A A kind of production method of high durable softness long persistence light storage film
CN109290676A A kind of anti-fake hyperbola marking device of Retroflective article
CN109575823A A kind of acrylic type changes colour the manufacturing method of film
CN109401505A A kind of reflective membrane preparation method of water soluble acrylic resin
CN109400789A A kind of preparation method of reflective membrane acrylic copolymer