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COLUMBIA SALVAGE CORP

Overview
  • Total Patents
    15
About

COLUMBIA SALVAGE CORP has a total of 15 patent applications. Its first patent ever was published in 1923. It filed its patents most often in United States. Its main competitors in its focus markets machines and machine tools are MESABI JOBBERS INC, FRANCE MUNITIONS SOC and SPACE RES CORP.

Patent filings in countries

World map showing COLUMBIA SALVAGE CORPs patent filings in countries
# Country Total Patents
#1 United States 15

Patent filings per year

Chart showing COLUMBIA SALVAGE CORPs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machines
#2 Machine tools

Top inventors

# Name Total Patents
#1 Gustave Allison 5
#2 Knight Thomas F 5
#3 Bots Richard H 3
#4 Walter Welch Augustine 1
#5 Swanick Joseph G 1

Latest patents

Publication Filing date Title
US1533083A Method and apparatus for salvaging artillery ammunition
US1533486A Method and apparatus for removing primers from artillery cartridge casings
US1516343A Method and apparatus for unloading high-explosive shells
US1492950A Chuck
US1492949A Shell-salvaging apparatus
US1492925A Method and apparatus for unloading high-explosive shells
US1492905A Method and apparatus for unloading high-explosive shells
US1506354A Shrapnel-salvaging apparatus and method
US1507654A Machine for removing the booster charge from high-explosive shells
US1492958A Apparatus for unloading high-explosive shells
US1492924A Method and apparatus for unloading high-explosive shells
US1492956A Method and apparatus for unloading high-explosive shells
US1492957A Method and apparatus for unloading high-explosive shells
US1492922A Method and apparatus for unloading high-explosive shells
US1492923A Method and apparatus for unloading high-explosive shells