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HOWARD CLARENCE H

Overview
  • Total Patents
    20
About

HOWARD CLARENCE H has a total of 20 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States and Canada. Its main competitors in its focus markets transport, materials and metallurgy and civil engineering are COMMW STEEL, GEN STEEL CASTINGS CORP and LOCOMOTIVE TENDER FRAME COMPANY.

Patent filings in countries

World map showing HOWARD CLARENCE Hs patent filings in countries
# Country Total Patents
#1 United States 18
#2 Canada 2

Patent filings per year

Chart showing HOWARD CLARENCE Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Howard Clarence H 20
#2 Pflager Harry M 2
#3 Floyd George G 1
#4 Schaffer Morse B 1

Latest patents

Publication Filing date Title
US999308A Forming molds for castings.
US926189A Railroad motor-car truck.
US928976A Railroad motor-car truck.
US921112A Car-underframe.
US922586A Car-underframe.
US919356A Car-underframe.
US881185A Car-underframe.
US835528A Railroad-car.
US835527A Railroad-car.
CA97211A Draft gear for railway car
US813427A Railroad motor-car.
US811561A Locomotive-tender frame.
US818448A Locomotive-engine frame.
US806811A Railroad-car.
US795282A Car-bolster.
US782398A Railroad.
US778973A Railroad-car.
US780658A Car-truck.
US659232A Car-journal-bearing stop-key.
CA63753A Car transom