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SHEFFIELD CAR CO

Overview
  • Total Patents
    64
About

SHEFFIELD CAR CO has a total of 64 patent applications. Its first patent ever was published in 1898. It filed its patents most often in United States and Canada. Its main competitors in its focus markets transport, machines and mechanical elements are FRANTZ VIRGIL L, MCKEEN MOTOR CAR COMPANY and THOMAS GEORGE PAUL.

Patent filings in countries

World map showing SHEFFIELD CAR COs patent filings in countries
# Country Total Patents
#1 United States 63
#2 Canada 1

Patent filings per year

Chart showing SHEFFIELD CAR COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hovey William S 23
#2 Stebbins Charles B 14
#3 Henderson James 6
#4 Card John F 5
#5 Rix Milton H 4
#6 Mahana Charles G 3
#7 Cottle Arthur P 3
#8 Whitesell Fredrick N 2
#9 Matthews John G 2
#10 Thompson Harry E 2

Latest patents

Publication Filing date Title
US1334550A Starting and reversing mechanism
US1286448A Water-column.
US1283971A Stand-pipe.
US1239488A Internal-combustion engine.
US1265249A Air-cooled internal-combustion engine.
US1157168A Engine-mounting.
US1157130A Piston.
US1166956A Valve mechanism.
US1117641A Internal-combustion engine.
CA153562A Internal combustion engine
US1100053A Fan.
US1134110A Fly-wheel for explosion-engines.
US1042495A Motor-car.
US1032633A Motor-car.
US1002367A Collapsible core for use in the manufacture of coils.
US992356A Railway motor-car.
US1009519A Motor-car.
US997571A Brake for railway motor-cars.
US987881A Railway-car.
US940970A Clutch.