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CHANGSHU OPTICAL INSTR CO LTD

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    127,234
About

CHANGSHU OPTICAL INSTR CO LTD has a total of 13 patent applications. Its first patent ever was published in 2015. It filed its patents most often in China. Its main competitors in its focus markets materials and metallurgy and basic materials chemistry are SHCHEPOCHKINA YULIYA ALEKSEEVN, SHCHEPOCHKINA JULIJA ALEKSEEVN and KOMPLEKSNYJ NII STROJMATERIALO.

Patent filings in countries

World map showing CHANGSHU OPTICAL INSTR CO LTDs patent filings in countries
# Country Total Patents
#1 China 13

Patent filings per year

Chart showing CHANGSHU OPTICAL INSTR CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xi Jian'An 12
#2 Xi Jian An 1

Latest patents

Publication Filing date Title
CN106366940A Polishing fluid for processing optical glass
CN106398549A Polishing liquid for colored optical glass processing
CN106433483A Polishing solution used for processing colored optical glass
CN106398550A Polishing solution for processing radiation-resistant optical glass
CN106398546A Polishing fluid for processing quartz optical glass
CN106366945A Polishing solution for processing quartz optical glass
CN105366939A Environment-friendly optical glass with high index of refraction
CN105621880A Optical glass
CN105601103A Phosphate optical glass
CN105645759A Optical glass
CN105621879A Light crown
CN105254173A Phosphate optical glass
CN105399343A Optical glass composite membrane and coating technology