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COLUMBIA MILLS

Overview
  • Total Patents
    23
About

COLUMBIA MILLS has a total of 23 patent applications. Its first patent ever was published in 1931. It filed its patents most often in Canada and United States. Its main competitors in its focus markets machines and civil engineering are S & T COMPONENTS GMBH & CO KG, JOANNA WESTERN MILLS CO and NEWELL WINDOW FURNISHINGS INC.

Patent filings in countries

World map showing COLUMBIA MILLSs patent filings in countries
# Country Total Patents
#1 Canada 22
#2 United States 1

Patent filings per year

Chart showing COLUMBIA MILLSs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Burns Fred J 18
#2 Peterson Albert 2
#3 Kelly John T 1
#4 Wulfert Adolph C 1
#5 Arms John P 1
#6 Zingg William W 1

Latest patents

Publication Filing date Title
US1905980A Shade roller
CA453827A Cord lock and bracket
CA457042A Venetian blind head box
CA402011A Venetian blind cord locking mechanism
CA381871A Venetian blind
CA504121A Flexible storm window securing means
CA581093A Locking means for holddown brackets
CA423406A Venetian blind bracket
CA504123A Center bars for frameless storm windows
CA353458A Window shade and blind
CA470008A Frameless window screens
CA576915A Frameless window closure construction
CA340741A Window blind tilting device
CA334316A Shade roller
CA357685A Venetian blind stop device
CA353457A Spindle ferrule bearing
CA362291A Venetian blind bracket
CA345493A Venetian blind device
CA589858A Window screens
CA468933A Holddown brackets