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VONNEGUT HARDWARE COMPANY

Overview
  • Total Patents
    28
About

VONNEGUT HARDWARE COMPANY has a total of 28 patent applications. Its first patent ever was published in 1916. It filed its patents most often in United States and Canada. Its main competitors in its focus markets civil engineering, machines and mechanical elements are OGDEN INDUSTRIES PTY LTD, GKN STENMAN AB and EVERSAFETY PREC INDUSTRY TIANJ.

Patent filings in countries

World map showing VONNEGUT HARDWARE COMPANYs patent filings in countries
# Country Total Patents
#1 United States 21
#2 Canada 7

Patent filings per year

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

Focus industries

Top inventors

# Name Total Patents
#1 Foster John R 11
#2 Prinzler Carl J 9
#3 Eichacker Homer A 6
#4 Homer Eichacker 2
#5 Powell John F 1
#6 Prinzler Carl Jacob 1

Latest patents

Publication Filing date Title
US3149864A Latch mechanism
US3148903A Means for preventing dogging of panic exit bar in latched position
US3087323A Mortise-type, reverse-pivoted latch mechanism
US3079185A Coupling
US3097007A Panic exit device
US2991107A Composite stainless-steel panic exit case
US2854838A Panic latch and lock mechanism
US2908523A Vertical rod, top-and-bottom panic latch mechanism
US2858157A Panic latch mechanism
US2710216A Latch mechanism
US2566284A Retractor bolt
US2514317A Pull locking control for closures
US2015996A Double door coordinator
US2147581A Panic lock for doors
US1916116A Metal threshold
US1922860A Compensating astragal
US1815584A Doorbolt mechanism
US1564184A Strike for doorlocks
US1564183A Door holder
US1508668A Lock