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BANCROFT CHARLES

Overview
  • Total Patents
    24
About

BANCROFT CHARLES has a total of 24 patent applications. Its first patent ever was published in 1938. It filed its patents most often in Canada, United Kingdom and United States. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and mechanical elements are ODAWARA DAISAKU, BEAUDOIN NORMAND and AASE JAN M.

Patent filings in countries

World map showing BANCROFT CHARLESs patent filings in countries
# Country Total Patents
#1 Canada 10
#2 United Kingdom 8
#3 United States 6

Patent filings per year

Chart showing BANCROFT CHARLESs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bancroft Charles 17

Latest patents

Publication Filing date Title
US3922118A Rotary vane piston devices with stationary spur gears and crankshaft hub bearings
US3658447A Pressure sealing assemblies for rotary vane piston devices
US3556693A Rotary piston devices
US3556694A Rotary piston devices
US3555813A Rotary piston devices
US3544242A Rotary piston devices
GB1060372A Improvements in or relating to reciprocating compressors, pumps, engines and the like
GB849684A Automatic variable speed transmission
GB673608A Improvements in or relating to automotive road vehicles
GB497630A Improvements in or relating to rotary displacement means
CA792014A Fluid displacement device
CA614805A Automatic transmission
CA731376A Helicopter mechanism
CA381348A Rotary displacement device
CA890193A Rotary piston devices
CA622209A Rotary piston engine
CA798078A Fluid displacement device
CA760734A Rotary piston engine
CA580998A Rotary piston gas generator
CA515350A Banking automotive vehicle