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COLUMBIA POSTAL SUPPLY COMPANY

Overview
  • Total Patents
    15
About

COLUMBIA POSTAL SUPPLY COMPANY has a total of 15 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States and Canada. Its main competitors in its focus markets packaging and shipping and textiles and paper are INTERNAT POSTAL SUPPLY COMPANY OF NEW YORK, KRAG NILS AALL and D APP DE PREC SOC D ET CONST.

Patent filings in countries

World map showing COLUMBIA POSTAL SUPPLY COMPANYs patent filings in countries
# Country Total Patents
#1 United States 14
#2 Canada 1

Patent filings per year

Chart showing COLUMBIA POSTAL SUPPLY COMPANYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Packaging and shipping
#2 Textiles and paper

Focus technologies

# Technology
#1 Handling thin material
#2 Stamps
#3 Printing machines

Top inventors

# Name Total Patents
#1 Ielfield Fred C 11
#2 Ielfield August 2
#3 Ielfield Fred Charles 1
#4 Slack John W 1

Latest patents

Publication Filing date Title
US1401742A Canceling device
US1243740A Mail-marking machine.
US1079492A Mail-marking machine.
US1078096A Mail-marking machine.
US1038587A Mail-marking machine.
US1019158A Mail-marking machine.
US949275A Mail-marking machine.
US896834A Mail-marking or canceling machine.
US888809A Mail-marking machine.
US761229A Mail-marking machine.
CA72454A Mail cancelling and postmarking machine
US673604A Mail canceling and postmarking machine.
US667395A Mail canceling and postmarking machine.
US667394A Mail canceling and postmarking machine.
US912244A Mail-marking machine.