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DONALDSON MFG COMPANY LTD

Overview
  • Total Patents
    34
About

DONALDSON MFG COMPANY LTD has a total of 34 patent applications. Its first patent ever was published in 1925. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets civil engineering, furniture and games and machines are LEE YONG HAE, SHEWCHUK JAMES G and STAFIEJ ANDRZEJ.

Patent filings in countries

World map showing DONALDSON MFG COMPANY LTDs patent filings in countries
# Country Total Patents
#1 United States 15
#2 Canada 9
#3 United Kingdom 7
#4 France 3

Patent filings per year

Chart showing DONALDSON MFG COMPANY LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 James Hadden William 13
#2 Hadden William James 8
#3 John Petrie 2
#4 Petrie John 1

Latest patents

Publication Filing date Title
US1916792A Golf club head
US2076340A Golf club
GB337519A Improvements in and relating to steel shafted golf clubs
US1818553A Head for golf clubs
US1890538A Shaft for golf clubs
US1802507A Golf club
US1916791A Golf club
GB313337A Improvements in golf clubs
GB294438A Improvements in and relating to windows
US1734769A Fastening means for securing fabric to a rigid base
US1797204A Roller blind and fitting therefor
US1788021A Roller blind and fittings therefor
GB295098A Improvements in roller blinds and fittings therefor
GB295093A Improvements in fastening means for securing fabric to a rigid base applicable to roller blinds
US1665811A Golf club
US1648806A Golf club
US1746936A Roller blind and fitting therefor
US1659700A Draft, dust, and weather excluder for hinged doors and windows
US1651697A Draft, dust, and weather excluder for sliding windows and doors
US1674447A Draft, dust, and weather excluder for hinged doors and windows