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HUANG DEFU

Overview
  • Total Patents
    16
  • GoodIP Patent Rank
    199,889
  • Filing trend
    0.0%
About

HUANG DEFU has a total of 16 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 1995. It filed its patents most often in China. Its main competitors in its focus markets environmental technology and thermal processes are BRUSS OTDEL VGNI PK I ENERGET, MORIMATSU KOGYO KK and TOHO PERLITE.

Patent filings in countries

World map showing HUANG DEFUs patent filings in countries
# Country Total Patents
#1 China 16

Patent filings per year

Chart showing HUANG DEFUs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Huang Defu 16
#2 Huang Guangyao 7
#3 Huang Guanghui 7

Latest patents

Publication Filing date Title
CN109916189A A kind of dry-wet integrated type cooling tower of casing heat pipe-type
CN109442461A A kind of commutation regenerative heat exchange formula flue gas Tuo Baifa
CN108050871A A kind of combined heat pipe-type indirect air cooling method of dry and wet
CN106145158A A kind of production method synthesizing ammonia
CN103865586A Gas production method by fixed layer intermittent gas stoves in serial connection circulating manner
CN103865583A Serial circulating gas production method employing mixed gas stove at fixed bed
CN102916278A Earth leakage protection socket with jack baffle device
CN102882043A Electric leakage protection socket with integrated baffle plate locking mechanism
CN102882036A Earth leakage protection socket with functions of sparking prevention and reverse connection protection
CN102801017A Leakage protection socket with sparking preventing function
CN102593785A Protective circuit for electric leakage detection
CN102496799A Electric leakage protecting socket with baffle locking mechanisms
CN101629108A Method for preparing coal gas through gasification of pulverized coal
CN1504105A Dry jam with sesame
CN1177494A Sanwansan-medicinal powder for treating stubborn skin disease, otitis media and carbuncle and preparation method thereof
CN1145397A Fixed layer intermittence half-water gas prodn. method