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DWIGHT AND LLOYD METALLURG COM

Overview
  • Total Patents
    18
About

DWIGHT AND LLOYD METALLURG COM has a total of 18 patent applications. Its first patent ever was published in 1920. It filed its patents most often in United Kingdom, France and Canada. Its main competitors in its focus markets materials and metallurgy and thermal processes are ROLFSEN OLE, SALZHEMMENDORF DOLOMITWERK and POSPISIL JAROSLAV.

Patent filings in countries

World map showing DWIGHT AND LLOYD METALLURG COMs patent filings in countries
# Country Total Patents
#1 United Kingdom 5
#2 France 4
#3 Canada 3
#4 United States 3
#5 Germany 2
#6 Austria 1

Patent filings per year

Chart showing DWIGHT AND LLOYD METALLURG COMs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Hyde Reed W 6

Latest patents

Publication Filing date Title
GB379268A Improvements in or relating to refractory materials and to methods of making the same
US1746945A Recovering metals
US1746944A Process of cement manufacture
DE581575C Furnace for burning alkaline earth carbonates
DE548896C Process for burning tiny carbonates of the alkaline earth
GB269480A Improvements in or relating to methods of and apparatus for treating materials
GB275463A Improvements in or relating to the treatment of carbonate materials
GB264450A Improvements in or relating to sintering machines
US1810313A Process of and apparatus for heat treating alkaline earth carbonate and other materials
GB161491A Improvements in and connected with ore sintering mechanisms
CA280181A Heat treating apparatus
CA281295A Earthy mineral processing
CA284764A Earthy material processing