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UNION DRAWN STEEL COMPANY

Overview
  • Total Patents
    21
About

UNION DRAWN STEEL COMPANY has a total of 21 patent applications. Its first patent ever was published in 1924. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machine tools, machines and packaging and shipping are ZAKLAD DOSWIADCZALNY PRZY ZAKL, TUBUS A G and LOEWY ENG CO LTD.

Patent filings in countries

World map showing UNION DRAWN STEEL COMPANYs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 8

Patent filings per year

Chart showing UNION DRAWN STEEL COMPANYs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Leech Jacob T 4
#2 Leech Jacob Test 3
#3 Richardson Harry Hamilton 3
#4 Test Leech Jacob 2
#5 Hamilton Richardson Harry 2
#6 Frederick Kornbrath 1
#7 Kornbrath Frederick 1
#8 Belles Albert C 1
#9 Benjamin George M 1
#10 Causer Edward T 1

Latest patents

Publication Filing date Title
US2012022A Drawing die
US1982352A Drawing die
US1972473A Method of drawing wire
US1860607A Method of making crank shafts
US1922770A Drawing die
US1779478A Method of working metal rods, bars, and the like
US1779479A Machine for working metal rods, bars, and the like
US1720202A Guide rail
US1904947A Wire drawing machine
US1911157A Mechanism for drawing metal
US1765047A Drawing machine
US1736976A Apparatus for straightening metal bars and shapes
US1535323A Twister
CA304434A Drawing die
CA265564A Metal straightening apparatus
CA347907A Metal drawing die
CA230437A Grinding machine
CA287926A Metal drawing apparatus
CA355385A Metal drawing die
CA238928A Drawing die