Learn more

PURE CALCIUM PRODUCTS COMPANY

Overview
  • Total Patents
    13
About

PURE CALCIUM PRODUCTS COMPANY has a total of 13 patent applications. Its first patent ever was published in 1928. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets materials and metallurgy, macromolecular chemistry and polymers and basic materials chemistry are COLUMBIAN CARBON CO., LAJOS CSONKA and JIANGSU NOVORAY NEW MAT CO LTD.

Patent filings in countries

World map showing PURE CALCIUM PRODUCTS COMPANYs patent filings in countries
# Country Total Patents
#1 United States 5
#2 Canada 4
#3 United Kingdom 2
#4 Germany 1
#5 France 1

Patent filings per year

Chart showing PURE CALCIUM PRODUCTS COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Church John W 5
#2 Church John Wheeler 4
#3 Mcclure Raymond R 3
#4 Elledge Harvey G 2
#5 Elledge Harvey Gerald 2
#6 Mcclure Raymond Randall 1
#7 Mcclure Raymond Rendall 1

Latest patents

Publication Filing date Title
US2034797A Treatment of whiting and the like
US1994271A Method of making an alkaline earth metal carbonate of improved color
GB379942A Improvements in or relating to rubber mixes
US1862176A Method of making by-product whiting
US1843576A Filler and reenforcing pigment for plastics and method of making the same
US1872891A Process of making precipitated calcium carbonate
CA365877A Rubber mix
CA309082A Method of making by-product whiting
CA299771A Method of making precipitated materials
CA361856A Whiting processing