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SAN FORD MACHINERY CO LTD

Overview
  • Total Patents
    49
  • GoodIP Patent Rank
    119,873
  • Filing trend
    ⇩ 66.0%
About

SAN FORD MACHINERY CO LTD has a total of 49 patent applications. It decreased the IP activity by 66.0%. Its first patent ever was published in 1995. It filed its patents most often in United States, Taiwan and EPO (European Patent Office). Its main competitors in its focus markets chemical engineering, furniture and games and machines are BAKER WILLIAM JAMES, DEMARCO THOMAS M and VANHALA MARKKU.

Patent filings in countries

World map showing SAN FORD MACHINERY CO LTDs patent filings in countries

Patent filings per year

Chart showing SAN FORD MACHINERY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cheng Chieh-Yuan 17
#2 Cheng Yuan-Tai 14
#3 Cheng Mao-Nan 4
#4 Cheng Chieh Y 3
#5 Cheng Chieh Yuan 3
#6 Cheng Yun-Tai 2
#7 Cheng Mao Nan 2
#8 Zheng Jie-Yuan 1
#9 Helshoj Benjamin Ole Sten 1
#10 Cheng Charles 1

Latest patents

Publication Filing date Title
US2021101102A1 Assembled air cleaner
TWI704952B Assemblable air cleaner
US2020061508A1 Fixing device for the dust bag of a dust collector
US2019299141A1 Transverse secondary dust collector
US2019194986A1 Handle having airtightness function used for casing of negative pressure type dust collector
US10265652B1 Buckle mechanism of dust collecting barrel of bag-type dust collector
US2019133393A1 Buckle mechanism of dust collecting barrel of two-stage dust collector
US2018345200A1 Filter cylinder having dust cleaning device of dust collector
US2018345199A1 Filter cylinder having dust cleaning device of dust collector
US2018339257A1 Dust collector provided with a shunt guide plate
US2018169558A1 Dust collector capable of recollecting particulate dust in the filter barrel
US9566592B1 Dust collector able to prop open a fallen dust bag
US2016339374A1 Forcing and fixing structure for the filter cylinders of a filter cylinder type dust collector
US2016059169A1 Filter cartridge structure having high efficiency particulate air filter (HEPA) of dust collector
US2015096446A1 Dust-collecting device of a secondary dust-collecting machine
US2010258008A1 Oil mist separator
US2010126126A1 Collapsible filtration tank for a dust collector
US2010037572A1 Negative pressure dust collector with a dust receiving bag smoothly inflatable
US2009229230A1 Automatic dust debris clearing apparatus for a filter drum in a dust collector
US2009025348A1 Dust collector with a function of secondary collection