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DUAN YADONG

Overview
  • Total Patents
    26
  • GoodIP Patent Rank
    124,997
  • Filing trend
    ⇩ 50.0%
About

DUAN YADONG has a total of 26 patent applications. It decreased the IP activity by 50.0%. Its first patent ever was published in 1996. It filed its patents most often in China and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets optics and medical technology are GUNNAR OPTIKS LLC, LOOLOOPS LLC and REVOLUTION EYEWEAR INC.

Patent filings in countries

World map showing DUAN YADONGs patent filings in countries

Patent filings per year

Chart showing DUAN YADONGs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Duan Yadong 26
#2 Ge Jian 2
#3 Yang Xinbin 2
#4 Zeng Junwen 2
#5 Chen Xiang 2

Latest patents

Publication Filing date Title
CN110687689A Peripheral out-of-focus spectacle lens of microlens
CN110068938A A kind of nose temporo side periphery defocus spectacle lens adjusting set based on eye
CN109669276A The just value added periphery defocus spectacle lens of gradient
CN107908017A Annular three focuses, bi-focal ophthalmic
CN107861262A Fan annular concentric circumferential edge defocus ophthalmic len
CN106214438A A kind of rectification and training Dual-purpose glasses
CN105785589A Four-quadrant-region peripheral out-of-focus frame glasses lens
CN105785591A Multi-base arc corneal contact lens
CN105974605A Four-quadrant area ambitus out-of-focus corneal contact lens
CN104090381A Nasal and bitamporal region peripheral out-of-focus frame glasses
CN104090380A Peripheral out-of-focus frame eyeglass lens with functional area asymmetric correction quantity
CN103777368A Short-sighted periphery defocus spectacle lens with wide view field
CN103309054A Full-out-of-focus pressure pasting lens
CN103235421A Full-out-of-focus corrective spectacle glasses
CN103197436A Press-on lens capable of correcting retinal peripheral defocus
CN103040888A Ophthalmologic external preparation, as well as preparation method and application thereof
CN102998810A Surrounding out-of-focus correction spectacles for myopia
CN1836670A Microsphere injection for treating ophthalmopathy
CN1757389A Implanted agent for preventing and treating biabetic retinopathy
CN1751703A Injection for treating ophthalmopathy