Learn more

ILLINOIS LOCK CO

Overview
  • Total Patents
    36
About

ILLINOIS LOCK CO has a total of 36 patent applications. Its first patent ever was published in 1938. It filed its patents most often in United States, Denmark and Australia. Its main competitors in its focus markets machines, civil engineering and control are MAS HAMILTON GROUP, NEWMAN ABRAHAM A and RAYMOND JAMES W.

Patent filings in countries

World map showing ILLINOIS LOCK COs patent filings in countries
# Country Total Patents
#1 United States 20
#2 Denmark 3
#3 Australia 2
#4 Germany 2
#5 Japan 2
#6 Netherlands 2
#7 Sweden 2
#8 Canada 1
#9 Italy 1
#10 Norway 1

Patent filings per year

Chart showing ILLINOIS LOCK COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gray Raymond K 8
#2 Wolniak Stanley C 7
#3 Perron R R 6
#4 Spencer Elbert M 4
#5 Lester Gray Rollin 3
#6 Perron Robert R 3
#7 Fowler J T 3
#8 Trombly J E 3
#9 Fowler John T 3
#10 Trombly John E 2

Latest patents

Publication Filing date Title
JPS53113699A Electronic lock without keyhole
NL7702400A Electronic locking system with generator key - has frequency modulated carrier wave generator working with signal discriminator circuit
DE2705827A1 Electronic locking system with generator key - has frequency modulated carrier wave generator working with signal discriminator circuit
AU2221377A Keyhole-less electronic lock
IT1077745B Electronic locking system with generator key - has frequency modulated carrier wave generator working with signal discriminator circuit
US3600914A Theft-prevention device for tractor-drawn trailers
US3438227A Pop handle lock
US3399555A Lock construction
US3336774A Cylinder lock construction
US3299678A Lock device for vending machine or the like
US3266080A Valve means for hydraulic door closer
US3317215A Rod seal
US3292203A Door bracket
US3064303A Valve for door closer
US3078499A Door closer
US2938373A Lock
US2883848A Lock
US2740284A Lock
US2433114A Padlock
US2430391A Lock