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DOUGLAS COLLINS

Overview
  • Total Patents
    34
About

DOUGLAS COLLINS has a total of 34 patent applications. Its first patent ever was published in 1924. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets machines, engines, pumps and turbines and transport are PEERLESS MOTOR CAR COMPANY, DELCO REMY CORP and WITHROW FLOYD G.

Patent filings in countries

World map showing DOUGLAS COLLINSs patent filings in countries
# Country Total Patents
#1 United States 33
#2 United Kingdom 1

Patent filings per year

Chart showing DOUGLAS COLLINSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Douglas Collins 33
#2 Boylan Gove S 1
#3 Ericson George R 1

Latest patents

Publication Filing date Title
US2815018A Oven door
US2875464A Stall and reverse circuit for windshield wiper
US2685651A Starting system
US2767278A Magnetic lock switch for starter and ignition circuits
US2685650A Automatic starting system
US2614020A Shelf elevating mechanism and control
US2490418A Power plant for motor vehicles
US2473508A Freezer shelf construction
US2549664A Elevating mechanism and brake control for refrigerator shelf frames
US2392230A Windshield wiper
US2183444A Auxiliary control for hydraulic brakes
US2191125A Auxiliary steering mechanism
US2155302A Hydraulic braking system
US2136276A Auxiliary control for hydraulic brakes
US2133739A Clutch
US2086661A Engine operated control for power brakes
US2108579A Engine starting device
US2119268A Exhaust-gas injector
US2073444A Electric starting motor
US2059624A Electric starting motor