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CHANGCHUN CHANGGUANG PREC INSTRUMENT GROUP CO LTD

Overview
  • Total Patents
    21
  • GoodIP Patent Rank
    78,707
  • Filing trend
    ⇩ 100.0%
About

CHANGCHUN CHANGGUANG PREC INSTRUMENT GROUP CO LTD has a total of 21 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2017. It filed its patents most often in China. Its main competitors in its focus markets measurement, computer technology and audio-visual technology are WUHAN ZHONGGUANG AUTOMATION TECH CO LTD, CREAFORM INC and INB VISION AG.

Patent filings in countries

World map showing CHANGCHUN CHANGGUANG PREC INSTRUMENT GROUP CO LTDs patent filings in countries
# Country Total Patents
#1 China 21

Patent filings per year

Chart showing CHANGCHUN CHANGGUANG PREC INSTRUMENT GROUP CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yuan Li 7
#2 Li Junlin 7
#3 Tang Yanfu 4
#4 Ma Hongtao 4
#5 Yang Yongqiang 4
#6 Ge Xinhong 3
#7 Liu Luo 3
#8 Song Yuanzhang 3
#9 Wang Junjie 3
#10 He Gengxian 3

Latest patents

Publication Filing date Title
CN108055167A A kind of application oriented interface communications protocol modeling method and device
CN108271018A A kind of space camera electronics emulation test system
CN108036930A A kind of detecting system of Transimission Grating Diffraction Efficiencies
CN108168499A A kind of measuring for the coaxiality error method and measuring system
CN108151669A A kind of method of measuring roundness error and measuring system
CN108008515A A kind of focus control of optical system
CN108172527A A kind of Systems for optical inspection
CN108195565A A kind of imaging sensor transmission function test device
CN108243337A A kind of imaging sensor dynamic transfer function test phase alignment means
CN108120989A Focometry and device, the system and method for position of focal plane calibration
CN108180865A A kind of test device of heavy-calibre planar minute surface shape
CN108168457A A kind of cylindricity error measuring method and measuring system
CN108198645A A kind of lobster optics of the eye systematic parameter determines method
CN108155920A A kind of method and system for eliminating electromagnetic interference
CN108152605A A kind of electric field detecting system
CN107797931A A kind of method for evaluating software quality and system based on second evaluation
CN107766254A A kind of Evaluation of Software Quality and system based on step analysis
CN107976210A A kind of method and device for detecting bearing installation
CN109427055A The remote sensing images surface vessel detection method of view-based access control model attention mechanism and comentropy
CN107462185A Realize the device of super large caliber level crossing surface testing