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A V ROE CANADA LTD

Overview
  • Total Patents
    179
About

A V ROE CANADA LTD has a total of 179 patent applications. Its first patent ever was published in 1948. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets engines, pumps and turbines, machines and transport are ORENDA ENGINES LTD, FIATAVIO SPA and POLY IND INC.

Patent filings in countries

World map showing A V ROE CANADA LTDs patent filings in countries
# Country Total Patents
#1 United States 91
#2 Canada 78
#3 France 6
#4 Germany 2
#5 United Kingdom 2

Patent filings per year

Chart showing A V ROE CANADA LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Winnett Boyd 13
#2 Thompson Purvis Joseph 13
#3 Oliver Creek John 11
#4 Creek John O 11
#5 Boyd Winnett 7
#6 Calvin Secord Lloyd 7
#7 Purvis Joseph T 7
#8 Kelk George F 6
#9 William Jay Kenneth 6
#10 Guerin Meschino Ronald 5

Latest patents

Publication Filing date Title
US3051414A Aircraft with jet fluid control ring
US2763934A Gauge apparatus
US2920866A Hollow air cooled sheet metal turbine blade
US2800142A Pressure regulating and check valve
US2793752A Full flow inline filter
US2774365A Withdrawal or venting system for tanks containing liquids
US2749726A Torque transmitting coupling
US2716313A Gauge clamp
US2858104A Adjustable gas turbine shroud ring segments
US2826947A Presses
US2841363A Turbine disc and blade mounting
US3062482A Gas turbine engined aircraft
US2760338A Annular combustion chamber for gas turbine engine
US2716529A Seals for closures of pressurized compartments
US2850083A Cellular fuel tank
US2747449A Tool for installing inserts
US2849788A Method and apparatus for making hollow blades
US2726578A Automatic machine tools
US2710503A Nozzle box attachment
US2727358A Reverse-flow vaporizer with single inlet and plural outlets