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HEATHERWILL CO

Overview
  • Total Patents
    20
About

HEATHERWILL CO has a total of 20 patent applications. Its first patent ever was published in 1965. It filed its patents most often in Canada, United States and Switzerland. Its main competitors in its focus markets materials and metallurgy are WALLWORK & CO LTD, NAIGAI MALLEABLE KK and HANSBERG JULIUS.

Patent filings in countries

World map showing HEATHERWILL COs patent filings in countries
# Country Total Patents
#1 Canada 6
#2 United States 6
#3 Switzerland 2
#4 Denmark 2
#5 Germany 1
#6 Italy 1
#7 Netherlands 1
#8 Sweden 1

Patent filings per year

Chart showing HEATHERWILL COs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Hunter William A 8
#2 Hunter W 3
#3 Hunter William Allan 3
#4 William Allan Hunter 2
#5 Allan Hunter William 2

Latest patents

Publication Filing date Title
US3703921A Method and apparatus for casting in molds radially displaced on rotating table
US3506058A Method of matchplate molding
US3520348A Fill carriages for automatic matchplate moulding machines
US3406738A Automatic matchplate moulding machine
US3342253A Fluid-operated extensible flask
US3341033A Board stack lifter and feeding device for a bottom board of such stack
CA807496A Board stack lifter and feeding device for a bottom board of such stack
CA874330A Fill carriages for automatic matchplate moulding machines
CA794261A Fluid operated extensible flask
CA794259A Rollover device for moulding machines
CA794258A Automatic matchplate moulding machine and method of matchplate moulding