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KEITHLEY HERBERT R

Overview
  • Total Patents
    31
About

KEITHLEY HERBERT R has a total of 31 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, machine tools and machines are STANDARD RES & DESIGN, BOMBARDIER EURORAIL SA and SCULLIN STEEL COMPANY.

Patent filings in countries

World map showing KEITHLEY HERBERT Rs patent filings in countries
# Country Total Patents
#1 United States 30
#2 Canada 1

Patent filings per year

Chart showing KEITHLEY HERBERT Rs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Keithley Herbert R 31

Latest patents

Publication Filing date Title
US1248666A Dump-car.
CA182676A Underframe for railway cars
US1073350A Process of manufacturing car-wheels.
US1149267A Compound car-wheel.
US975383A Process of manufacturing car-wheel blanks.
US741250A Hopper-bottom freight-car.
US740142A Freight-car.
US731057A Railway-car truck.
US728583A Railway-car truck.
US741799A Underframe for railway-cars.
US725849A Freight-car.
US728582A Railway-car truck.
US727149A Railway-car-truck bolster.
US707702A Underframe for railway-cars.
US705763A Railway-car truck.
US712309A Door-fastening for freight-cars.
US702565A Railway-car truck.
US705358A Truck-bolster.
US703659A Freight-car.
US702564A Car-truck.