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AMERICAN HARDWARE CORP

Overview
  • Total Patents
    507
About

AMERICAN HARDWARE CORP has a total of 507 patent applications. Its first patent ever was published in 1910. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machines, civil engineering and mechanical elements are INDEPENDENT LOCK CO, SARGENT & CO and RUSSELL FRED J.

Patent filings in countries

World map showing AMERICAN HARDWARE CORPs patent filings in countries
# Country Total Patents
#1 United States 418
#2 Canada 66
#3 United Kingdom 9
#4 Germany 8
#5 Austria 2
#6 Belgium 2
#7 France 2

Patent filings per year

Chart showing AMERICAN HARDWARE CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hurd Norman B 82
#2 Stone Elmer B 46
#3 Teich Ernest L 38
#4 Welch Nicholas A 34
#5 Mcconnell Frank J 30
#6 Schweitzer William V 15
#7 Moore Wallace F 15
#8 Voight Henry G 15
#9 Bernhard Benjamin S 14
#10 Fisler Leland H 13

Latest patents

Publication Filing date Title
US3141320A Latchbolt holdback for doorlocks
US3129579A Latchbolt holdback for doorlocks
US3130994A Means for securing relatively movable members
US3111748A Lock cylinder assembly machine
US3128112A Privacy lock set
US3138888A Trigger safety for bolt action rifle
US3115019A Self-service refrigerated display case
DE1147137B Rotary cylinder lock with a number of radially movable tumblers
GB955829A Improvements in or relating to cylinder locks
DE1140834B Rotary cylinder lock with a number of radially movable tumblers, at least one of which consists of several locking elements
US3077100A Knob construction for cylinder locks
US3026703A Deadbolt lock
US3014748A Operating handle assembly for latch or lock mechanism
US3026704A Lock mounting means
US3070987A Locks
US3078705A Locks
US3010142A Door stop
US2930646A Deadlocking latch mechanisms
US2962888A Lock
US3029096A Deadlocking latch unit for door locks