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PHOTOP TECH INC

Overview
  • Total Patents
    84
  • GoodIP Patent Rank
    17,105
  • Filing trend
    ⇧ 15.0%
About

PHOTOP TECH INC has a total of 84 patent applications. It increased the IP activity by 15.0%. Its first patent ever was published in 2014. It filed its patents most often in China. Its main competitors in its focus markets optics, measurement and telecommunications are DONAM SYSTEMS INC, GEN PHOTONICS CORP and CASIX INC.

Patent filings in countries

World map showing PHOTOP TECH INCs patent filings in countries
# Country Total Patents
#1 China 84

Patent filings per year

Chart showing PHOTOP TECH INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Yang 59
#2 Wu Li 52
#3 Xu Yunbing 28
#4 Hu Haocheng 25
#5 Zhao Wuli 21
#6 Lin Jiangming 14
#7 Wang Zongyuan 14
#8 Chen Lixun 13
#9 Pan Zhongling 12
#10 Zheng Baozhong 11

Latest patents

Publication Filing date Title
CN112285954A Method for identifying light isolator incident and emergent surface and optical axis direction based on laser principle
CN112114400A Optical fiber circulator
CN112114404A Array optical fiber output laser
CN111856786A Broadband electro-optic adjustable filtering structure
CN111751929A Free space circulator
CN111751930A Two-in-one circulator
CN111751931A Small wavelength division multiplexer
CN111751934A Circular device
CN111290095A Miniaturized high-performance packaging structure of reflection-type optical device
CN111290096A Packaging device for miniaturized high-performance reflection-type device
CN111290081A Miniaturized high-performance variable attenuator
CN111262123A Flexible grid double-standard wavelength locker
CN110927882A Small-sized wavelength division multiplexer
CN110927883A Small-sized wavelength division multiplexer
CN110908150A Free space circulator
CN110908149A Free space circulator
CN110737113A small-sized adjustable wavelength optical filter
CN110658602A Packaging structure of double optical filters
CN110579278A Compound Fourier transform spectrometer
CN110471198A A kind of adjustable light wave-filter of TO encapsulation