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COLUMBIAN HARDWARE COMPANY

Overview
  • Total Patents
    16
About

COLUMBIAN HARDWARE COMPANY has a total of 16 patent applications. Its first patent ever was published in 1902. It filed its patents most often in United States. Its main competitors in its focus markets civil engineering, machines and machine tools are BOMMER EMIL, TRUTH TOOL COMPANY and CHICAGO SPRING BUTT COMPANY.

Patent filings in countries

World map showing COLUMBIAN HARDWARE COMPANYs patent filings in countries
# Country Total Patents
#1 United States 16

Patent filings per year

Chart showing COLUMBIAN HARDWARE COMPANYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Machines
#3 Machine tools

Top inventors

# Name Total Patents
#1 Valentine Harry J 8
#2 Brothers William H 3
#3 Yost Gilmore M 2
#4 Bucher William K 1
#5 Evan Watkins 1
#6 Hess Harry L 1

Latest patents

Publication Filing date Title
US1328862A Screw-clamp
US1298145A Vise.
US1298146A Vise.
US842521A Door-check.
US842520A Hinge.
US842519A Spring-hinge.
US882140A Spring-hinge.
US925184A Check for swing-doors.
US800887A Hinge.
US790540A Universal vise.
US787999A Spring-hinge.
US761731A Floor-hinge.
US734447A Spring-hinge.
US734446A Spring-hinge.
US734448A Spring door-closer.
US709618A Hinge-knob.