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DUCHESNE ERNEST

Overview
  • Total Patents
    11
About

DUCHESNE ERNEST has a total of 11 patent applications. Its first patent ever was published in 1903. It filed its patents most often in Canada, Switzerland and United States. Its main competitors in its focus markets thermal processes and mechanical elements are REICHLING ROBERT, HORNSBY WILLIAM and TARANKOV G A.

Patent filings in countries

World map showing DUCHESNE ERNESTs patent filings in countries
# Country Total Patents
#1 Canada 7
#2 Switzerland 2
#3 United States 2

Patent filings per year

Chart showing DUCHESNE ERNESTs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Thermal processes
#2 Mechanical elements

Focus technologies

# Technology
#1 Steam generation
#2 Pistons and sealings

Top inventors

# Name Total Patents
#1 Duchesne Ernest 11

Latest patents

Publication Filing date Title
CA195148A Piston rod toggle mechanism
CA136407A Piston packing
US1008799A Piston-packing.
US776732A Multitubular steam generator.
CA258480A Fluid pressure motor
CA335343A Boiler plug expander
CA254722A Milling cutter
CA308624A Rotary polishing device
CA252698A Locomotive driving box