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LEWIS & CO INC CHARLES

Overview
  • Total Patents
    23
About

LEWIS & CO INC CHARLES has a total of 23 patent applications. Its first patent ever was published in 1970. It filed its patents most often in Australia, United States and Canada. Its main competitors in its focus markets materials and metallurgy and environmental technology are GRANDMETALS CO LTD, NIPPON KINZOKU KAGAKU KK and BAJDUGANOV ALEKSANDR MERKUREVICH.

Patent filings per year

Chart showing LEWIS & CO INC CHARLESs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Johnson Thomas Edward 5
#2 Borges Robert J 5
#3 Johnson Thomas E 4
#4 Mcbroom John Kellett Jr 3
#5 Johnson T E 2
#6 Mcbroom Jr John Kellett 1
#7 Chas S Lewis Co Inc St Louis 1
#8 Mcbroom Jr John K 1
#9 Johnson T 1
#10 Toomasu Ii Jiyonson 1

Latest patents

Publication Filing date Title
CA1337160C Corrosion and abrasion resistant alloy
AU2423688A Air meltable castable corrosion-resistant (ni+cr+mo+co+fe) base alloy
US4853183A Air meltable castable corrosion resistant alloy and its process thereof
DE3019904A1 Heat energy prodn. by burning limestone - esp. to carbide and adding water, esp. as waste water
US4033767A Ductile corrosion resistant alloy
US3758296A Corrosion resistant alloy