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WEST END CHEMICAL COMPANY

Overview
  • Total Patents
    17
About

WEST END CHEMICAL COMPANY has a total of 17 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United States. Its main competitors in its focus markets materials and metallurgy, chemical engineering and machines are BURNHAM CHEMICAL COMPANY, ZOUTINDUSTRIE and HASHIMOTO CHEM CORP.

Patent filings in countries

World map showing WEST END CHEMICAL COMPANYs patent filings in countries
# Country Total Patents
#1 United States 17

Patent filings per year

Chart showing WEST END CHEMICAL COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hellmers Henry D 8
#2 Blackmun Lynn A 4
#3 Wiseman James V 4
#4 Morse Harry W 3
#5 Lowry Morris V 1
#6 James Wiseman 1

Latest patents

Publication Filing date Title
US2640762A Process for evaporating sodium sulfate solutions and recovering sodium sulfate therefrom
US2640761A Evaporating apparatus
US2504097A Process for producing anhydrous sodium sulfate
US2528481A Process for treating searles lake brine
US2531182A Process for the manufacture of boric acid
US2567867A Process for desulfurizing of searles lake brine
US2540648A Process for recovering sodium bicarbonate and sodium borate from a complex brine
US2062650A Production of noncrystalline borax
US1984342A Purification of sodium carbonate
US1733537A Process for recovering borax from brine
US1756122A Process for recovering borax from brine
US1556110A Process for separating calcined colemanite from clay and other impurities
US1512687A Centrifugal separator
US1573259A Process for producing borax and sodium bicarbonate from lake brines
US1468390A Method of concentrating brines
US1435727A Method of concentrating brines
US1468389A Method of concentrating brines