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CROWN MACHINE AND TOOL COMPANY

Overview
  • Total Patents
    18
About

CROWN MACHINE AND TOOL COMPANY has a total of 18 patent applications. Its first patent ever was published in 1947. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, packaging and shipping and materials and metallurgy are CHAMPLAIN ZAPATA PLASTICS MACH, UNIFOAM AG and CROWN MACHINE & TOOL COMPANY.

Patent filings in countries

World map showing CROWN MACHINE AND TOOL COMPANYs patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 6
#3 United Kingdom 1

Patent filings per year

Chart showing CROWN MACHINE AND TOOL COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Smucker Robert E 10
#2 Harrison James M 9
#3 Bohannon George S 5
#4 Graham Ray O 2
#5 Williams French B 2
#6 Dykehouse Robert H 1

Latest patents

Publication Filing date Title
US2982440A Plastic container
US2951260A Molding mechanism and heating arrangement
US3162705A Method for making plastic containers
US2928125A Method of and injection nozzle for preventing excessive heat transfer to a mold
US2860374A Stripper mechanism for injection molding
US2828509A Plastic molding machines
US2805790A Plastic containers and packaging thereof
US2642623A Plasticizing machine
US2719326A Plastic molding machines
US2718662A Plastic injection molding machine
GB675652A Improvements in and relating to machines for moulding plastic materials
US2501595A Plastic molding machine
CA640534A Molding method, mechanism and article
CA528173A Plasticizing machine
CA565533A Plastic containers and packaging thereof
CA700408A Container
CA570546A Injection apparatus for molding thin-walled containers
CA529065A Plastic injection molding machine