Learn more

ELCOR CHEM CORP

Overview
  • Total Patents
    11
About

ELCOR CHEM CORP has a total of 11 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Canada, United States and South Africa. Its main competitors in its focus markets materials and metallurgy and environmental technology are GONG JIAZHU, PRAYON SOC and NEGEV PHOSPHATES LTD.

Patent filings in countries

World map showing ELCOR CHEM CORPs patent filings in countries
# Country Total Patents
#1 Canada 3
#2 United States 3
#3 South Africa 3
#4 United Kingdom 2

Patent filings per year

Chart showing ELCOR CHEM CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fisher Edwin Eddie 2
#2 Fisher E 2
#3 Campbell R 2
#4 Campbell Roy Edwin 2
#5 Orahood John L 2
#6 Fisher E E 1
#7 Fisher Edwin E 1
#8 Campbell R E 1
#9 Orahood J 1
#10 Campbell Roy E 1

Latest patents

Publication Filing date Title
US3661518A Process for converting sulfates to sulfides
ZA6905220B Process for recovering a metal oxide and sulfur dioxide from a metal sulfate
ZA6905216B Sulfur recovery process
ZA6805487B Process for converting gypsum to calcium sulfide and apparatus therefor
GB1241575A Process for converting gypsum to calcium sulphide and apparatus therefor
US3607068A Sulfur recovery process
US3582276A Process for recovering a metal oxide and sulfur dioxide from metal sulfate
CA892459A Process for converting gypsum to calcium sulfide and apparatus therefor
CA892458A Process for recovering a metal oxide and sulfur dioxide from a metal sulfate