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PERMANENTE METALS CORP

Overview
  • Total Patents
    58
About

PERMANENTE METALS CORP has a total of 58 patent applications. Its first patent ever was published in 1942. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets materials and metallurgy, chemical engineering and macromolecular chemistry and polymers are ALUMINUM LAB LTD, HENRI HERRENSCHMIDT and TOTH ALUMINUM CORP.

Patent filings in countries

World map showing PERMANENTE METALS CORPs patent filings in countries
# Country Total Patents
#1 United States 41
#2 United Kingdom 8
#3 Canada 5
#4 France 2
#5 Belgium 1
#6 Germany 1

Patent filings per year

Chart showing PERMANENTE METALS CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Byrns Alva C 7
#2 Austin Leslie W 7
#3 Howard Church 4
#4 Hicks James C 4
#5 Fisher Harmon F 3
#6 Rick Clarence A 3
#7 Loenen William F Van 3
#8 Von Stroh Gerald 3
#9 Rhoades Donald A 3
#10 Edward Coates Geoffrey 2

Latest patents

Publication Filing date Title
US2593447A Method and composition for treating aluminum and aluminum alloys
US2487497A Process of purifying magnesia
US2493752A Process of producing magnesium hydroxide
GB666685A Process of producting magnesium hydroxide and magnesium oxide and products resulting therefrom
GB648315A Process of producing magnesium oxide and products resulting therefrom
GB639581A Improvements in or relating to a method of making a refractory article and a productresulting therefrom
US2487290A Catalytic crystallization of magnesium oxide
US2477549A Explosive composition
US2456935A Refining of volatilizable metals
US2434451A Refractories
US2433397A Method for cooling gaseous media by interchange of heat with cooling gases
US2437815A Process of magnesium production
US2456918A Distillation of volatilizable metals
US2433434A Chilling cone
US2474032A Process for removing a fluorine compound from a liquid hydrocarbon
US2461112A Skimming device
US2491033A Process for preparing magnesium oxide and hydroxide
US2493051A Increasing filterability of magnesium hydroxide
US2466145A Stabilized sorel cement and method of making
US2477420A Apparatus for cooling gaseous media by interchange of heat with cooling gases