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HSIEN CHANG OPTICAL IND CO LTD

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    166,562
  • Filing trend
    ⇩ 50.0%
About

HSIEN CHANG OPTICAL IND CO LTD has a total of 12 patent applications. It decreased the IP activity by 50.0%. Its first patent ever was published in 2007. It filed its patents most often in United States. Its main competitors in its focus markets optics and medical technology are GLOBAL OK VISION INC, PRES BY VISION LTD and LANDO RON.

Patent filings in countries

World map showing HSIEN CHANG OPTICAL IND CO LTDs patent filings in countries
# Country Total Patents
#1 United States 12

Patent filings per year

Chart showing HSIEN CHANG OPTICAL IND CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Medical technology

Focus technologies

# Technology
#1 Spectacles
#2 Implantable devices

Top inventors

# Name Total Patents
#1 Chou Wen-Hsiung 11
#2 Chen Mei-Jyu 1
#3 Laterre Jean Francois 1

Latest patents

Publication Filing date Title
US2020192119A1 Nasal mask structure for eyeglasses
US2019265516A1 Eyeglasses structure
US2019079312A1 Eyeglasses assembly structure
US2019079311A1 Eyeglasses assembly structure
US2018231798A1 Floatable temple structure of eyeglasses
US2018231799A1 Floatable spectacle frame structure
US9766477B1 Lens exchanging structure
US9766480B1 Assembled structure of main spectacle frame and assistant lens frame
US2017266049A1 Glasses structure
US2015234200A1 Assembly structure for eyeglass lens
US2014152952A1 Eyeglasses without using screws
US2009059160A1 Eyeglasses structure