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PHILADELPHIA QUARTZ COMPANY OF

Overview
  • Total Patents
    11
About

PHILADELPHIA QUARTZ COMPANY OF has a total of 11 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets materials and metallurgy, basic materials chemistry and chemical engineering are MATHOLIN CORP, QITAIHE BAOTAILONG GRAPHENE NEW MAT CO LTD and MORGAN JOHN STANLEY.

Patent filings in countries

World map showing PHILADELPHIA QUARTZ COMPANY OFs patent filings in countries
# Country Total Patents
#1 United States 4
#2 Canada 2
#3 France 2
#4 Switzerland 1
#5 Denmark 1
#6 United Kingdom 1

Patent filings per year

Chart showing PHILADELPHIA QUARTZ COMPANY OFs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Baker Chester L 4
#2 Baker Chester Leon 2
#3 Of California Philadelphia Qua 1
#4 Wright Roy E 1
#5 Cuneo Jr Frank L 1

Latest patents

Publication Filing date Title
US3392039A Lithium silicate composition
US2894847A Water-resistant adhesive compositions
US2116423A Method of crystallization and crystallized products
GB388041A Improved process for the manufacture of crystallised hydrates of sodium metasilicate
US1898707A Crystalline hydrates of alkali metal silicates and method of producing them
CA354827A Crystalling hydrate production
CA354698A Crystalline hydrate production