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TUBUS A G

Overview
  • Total Patents
    14
About

TUBUS A G has a total of 14 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machine tools, machines and surface technology and coating are ZAKLAD DOSWIADCZALNY PRZY ZAKL, ABRAHAM SIMONS and UNION DRAWN STEEL COMPANY.

Patent filings in countries

World map showing TUBUS A Gs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 1

Patent filings per year

Chart showing TUBUS A Gs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fritz Singer 10
#2 Alfred Liebergeld 3
#3 Adolf Wefing 2
#4 Singer Fritz 1

Latest patents

Publication Filing date Title
US2116954A Mechanically working metal article
US2105015A Mechanically working metal article
US2110965A Reducing the diameter of hollow metal articles
US2102099A Enlarging the diameter of hollow metal articles
US2023776A Production of seamless tubes and other elongate articles
US1984603A Extrusion press
US2036182A Extrusion method
US2006080A Extrusion press
US1966953A Extrusion press
US1989948A Extrusion apparatus
US1982544A Method and apparatus for elongating metal articles
US1960832A Method of producing wrought iron
US1955243A Method of producing seamless tubes by extrusion
CA377038A Metal article working method