Learn more

JOHNSON FRANK L

Overview
  • Total Patents
    29
About

JOHNSON FRANK L has a total of 29 patent applications. Its first patent ever was published in 1910. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, machine tools and transport are KENTREDDER LTD, MACMILLAN KENNETH T and SCHELKMANN WILHELM.

Patent filings in countries

World map showing JOHNSON FRANK Ls patent filings in countries
# Country Total Patents
#1 United States 27
#2 Canada 2

Patent filings per year

Chart showing JOHNSON FRANK Ls patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machines
#2 Machine tools
#3 Transport
#4 Weapons

Top inventors

# Name Total Patents
#1 Johnson Frank L 29

Latest patents

Publication Filing date Title
US5080426A Collapsible camper tent trailer
US3036554A Protective devices for dogs
US2225784A Machine for voicing reeds of harmonicas
US2199000A Press
US2149604A Collapsible form
US2108669A Toy gun
US2002983A Rack for holding twist drills
US1948035A Annular collapsible form
US1898667A Collapsible form for tire building
US1904945A Collapsible tire building form
US1890785A Collapsible tire building form
US1903458A Collapsible core
US1817515A Collapsible core
US1863201A Vulcanizer
US1758520A Turning lathe
US1730213A Collapsible tire-building form
US1636056A Collapsible tire-building form
US1648132A Collapsible tire-building drum
US1740245A Collapsible core
US1624343A Mold construction