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CHANG YUFEI

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    160,289
About

CHANG YUFEI has a total of 11 patent applications. Its first patent ever was published in 2014. It filed its patents most often in China. Its main competitors in its focus markets telecommunications, digital networks and control are WESTPORT INTERNATIONAL, PETER G S MERO and SLEEPER RES LAB INC.

Patent filings in countries

World map showing CHANG YUFEIs patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

Chart showing CHANG YUFEIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chang Yufei 11

Latest patents

Publication Filing date Title
CN106811424A A kind of feed preparation method of high concentration bacillus subtilis biological agent
CN106817378A Sign monitoring platform based on technology of Internet of things
CN106814763A Outer operated type riverbed water level centralized monitoring system based on Internet of Things
CN105570652A Multi-pipeline type bearing grease injecting device
CN105562625A Hydraulic type turnover mechanism
CN105508608A High-performance mechanical sealing device
CN105561855A Mechanical stirring device quick to assemble and disassemble
CN105499614A Auxiliary device used for stably lifting knife rest in vertical lathe
CN105562794A Automated shape correcting device for wind driven generator blades
CN105562730A Positioning accessory device in vertical lathe
CN105569069A Locking structure special for foundation fixing tool