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DONG YICHANG

Overview
  • Total Patents
    26
  • GoodIP Patent Rank
    189,588
About

DONG YICHANG has a total of 26 patent applications. Its first patent ever was published in 1998. It filed its patents most often in China. Its main competitors in its focus markets environmental technology, medical technology and control are NII TEPLOVYKH PROTSESSOV, DRETEC CO LTD and CORONA INDUSTRY CO LTD.

Patent filings in countries

World map showing DONG YICHANGs patent filings in countries
# Country Total Patents
#1 China 26

Patent filings per year

Chart showing DONG YICHANGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dong Yichang 22
#2 He Yanchun 17
#3 Dong Yichang He 2
#4 Cao Dezhen 1
#5 Shi Hong 1
#6 Dong Shengxiang 1
#7 Rongsong Ding 1

Latest patents

Publication Filing date Title
CN104982306A All-plastic magnetizer
CN104628209A Ozone magnetizer
CN104319061A Concave feeding-bottle magnetizer
CN104318725A Instantly-wet alarm
CN103989557A Sound-prompting diaper with moving sound prompting
CN103865658A Biodiesel and production method thereof
CN102865679A Heat collecting piece of welding copper head of all aluminum fin
CN102908217A Safety, healthcare and sanitary cock cap
CN101322753A Qianzheng plaster
CN1436969A Wind screen kitchen ventilator panel
CN1405498A Strong-intake air-curtain clean-keeping oil-fume discharging unit
CN1400427A Cleaning internal container
CN1336245A Deep and long cage oil filtering screen
CN1320790A Cooking fume exhauster
CN1316630A Through-type antibreaking full-glass vacuum tube for absorbing solar heat
CN1314563A Concave netted bladder for wind curtain
CN1304019A Cleaning-free kitchen ventilator
CN1272612A Close range suction filtering air-screen ventilator
CN1262396A High-Power fan
CN1254815A Oil soot exhauster with wind curtain