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GRIFFIN WHEEL CO

Overview
  • Total Patents
    131
About

GRIFFIN WHEEL CO has a total of 131 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets materials and metallurgy, machines and transport are GONDA METAL INDUSTRY CORP LTD, HAZELETT CLARENCE W and FERROX CO ETS INT.

Patent filings in countries

World map showing GRIFFIN WHEEL COs patent filings in countries
# Country Total Patents
#1 United States 41
#2 Canada 30
#3 United Kingdom 25
#4 France 15
#5 Switzerland 7
#6 Belgium 6
#7 Germany 6
#8 Brazil 1

Patent filings per year

Chart showing GRIFFIN WHEEL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sylvester Edmund Q 24
#2 Vial Frederick K 17
#3 Strom Charles F 10
#4 Sylvester Edmund Quincy 8
#5 Zickefoose Ellis James 7
#6 Zickefoose Ellis J 4
#7 Strom Charles Frederick 4
#8 Evans George S 3
#9 Drever James R 3
#10 Quincy Sylvester Edmund 3

Latest patents

Publication Filing date Title
US5919392A Pouring tube structure and assembly
US3201837A Method and apparatus for casting metal articles
GB994146A Method of making graphite articles
US3162909A Apparatus for pressure pouring articles
GB950532A Improvements in apparatus for casting
US3162912A Mold shut-off and riser arrangement
GB972502A Apparatus for making castings
GB969233A Railway wheel
GB957911A Method and apparatus for pressure casting
GB951262A Method and means for pressure pouring and casting
GB948164A Method of producing rolled metal articles
GB932911A Automatic pressure pouring control mechanism
US3015863A Bottom casting articles
US2990592A Automatic pressure pouring control mechanism
GB908173A Treatment of ceramic pouring tubes
DE1079529B Process for pretreating ceramic pouring pipes
US2999281A Apparatus for making castings
US3011231A Stopper assembly
DE1106036B Die casting system
DE1099133B Die casting system with adjustable riser pipe