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DWIGHT & LLOYD METALLURG COMPA

Overview
  • Total Patents
    19
About

DWIGHT & LLOYD METALLURG COMPA has a total of 19 patent applications. Its first patent ever was published in 1910. It filed its patents most often in United States and France. Its main competitors in its focus markets materials and metallurgy, thermal processes and machines are DWIGHT AND LLOYD METALLURG COM, VEIT DENNERT K G and ROLFSEN OLE.

Patent filings in countries

World map showing DWIGHT & LLOYD METALLURG COMPAs patent filings in countries
# Country Total Patents
#1 United States 18
#2 France 1

Patent filings per year

Chart showing DWIGHT & LLOYD METALLURG COMPAs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dwight Arthur S 8
#2 Hyde Reed W 5
#3 Lloyd Richard L 4
#4 Lloyd Thorne E 1
#5 Lewis Lloyd Richard 1

Latest patents

Publication Filing date Title
US2167120A Process of calcining finely divided calcium carbonate
US2029627A Manufacture of basic refractory material
US1939638A Refractory material and method of manufacturing
US1746860A Process of manufacturing cellular aggregate
US1709135A Apparatus for and process of smelting zinc ores
US1684958A Process of treating fines of earthy minerals
US1688422A Process of treating earthy minerals
US1650360A Process of treating mercury-bearing ores
US1481357A Treatment of ores
US1521820A Ore-distributing mechanism for charge cars
US1378822A Treatment of lixiviation-residue zinc
US1433350A Apparatus for sintering or agglomerating metalliferous substances