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Chengdu hengda optical co ltd

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    167,156
  • Filing trend
    ⇧ 100.0%
About

Chengdu hengda optical co ltd has a total of 11 patent applications. It increased the IP activity by 100.0%. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets machines, environmental technology and materials and metallurgy are SARATOVSKIJ INST STEKLA AOOT, AVANSTRATE INC and TOSOH QUARTZ CORP.

Patent filings in countries

World map showing Chengdu hengda optical co ltds patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

Chart showing Chengdu hengda optical co ltds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Weidong 6
#2 Yang Haiyan 5
#3 Xu Qi 5
#4 Zhang Bing 5
#5 Wang Xuewen 5
#6 Chen Hao 3
#7 Wei Zijun 2
#8 Wan Shan 2
#9 Wei Wen 1
#10 Jiang Yong 1

Latest patents

Publication Filing date Title
CN110228951A A kind of sulphur system glasses for infrared use secondary press technique
CN110255872A A kind of high light transmission glass tempering technique
CN110272192A A kind of secondary press technique of low soft spots optical glass
CN109020179A A kind of secondary press technique of fluorophosphate optical mold glass
CN108751691A A kind of multi-panel trimming prism manufacturing technique method
CN107697636A Edged lens charging tray induction system and method
CN106291787A A kind of prism processing technique
CN104761125A Special pressing die for forming glass lens and manufacturing method of special pressing die
CN103951165A Intelligent compression molding equipment for glass optical lens production
CN103951171A Automatic dumping softening furnace with dedusting structure
CN103645526A Pentaprism production process