Learn more

JOHNSON LOUIS W

Overview
  • Total Patents
    73
About

JOHNSON LOUIS W has a total of 73 patent applications. Its first patent ever was published in 1904. It filed its patents most often in Canada, United States and Germany. Its main competitors in its focus markets machines, mechanical elements and chemical engineering are JOHNSON L W, METSO BRASIL IND E COM LTDA and WOLF COMPANY.

Patent filings in countries

World map showing JOHNSON LOUIS Ws patent filings in countries
# Country Total Patents
#1 Canada 34
#2 United States 29
#3 Germany 7
#4 United Kingdom 3

Patent filings per year

Chart showing JOHNSON LOUIS Ws patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Johnson Louis W 67
#2 Johnson Bruce G 19
#3 Johnson Louis Wien 3
#4 Johnson Bruce Gordon 3
#5 W Johnson Louis 2

Latest patents

Publication Filing date Title
US5323976A Lift line connection for rock crusher components
US4919348A Dust seal for gyratory rock crushers
US4919349A Dust seal for gyratory rock crushers
US4773604A Seat member for gyratory rock crusher bowls
US4729911A Wood golf club heads, process of treating them, and apparatus
US4632751A Shaker screen
US4603577A Apparatus for determining the swing inertia of golf clubs
CA1203521A Seat member for gyratory rock crusher bowls
US4540178A Golf iron and method of construction
US4529510A Shaker screen
CA1185945A Joint assembly
US4454994A Load bearing surface
CA1135230A Rotatable support ring
CA1135231A Mantle
CA1135233A Drive coupler
CA1135232A Bowl support structure with bearing liners
CA1135234A Hydrostatic support
US4351490A Power drive structure for rotating threadedly supported rock crusher bowls
DE2944061A1 Gyratory crusher for rock breaking - includes eccentric rotor which is operated by independent coupler
US4192472A Cone crusher