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SOUTHERDEN JOHN STEPHEN

Overview
  • Total Patents
    15
About

SOUTHERDEN JOHN STEPHEN has a total of 15 patent applications. Its first patent ever was published in 1903. It filed its patents most often in Canada, United Kingdom and United States. Its main competitors in its focus markets textiles and paper and machines are JOSEPH LEE SWEENEY, PRICE BRIAN G and NYSTROM PETER J.

Patent filings in countries

World map showing SOUTHERDEN JOHN STEPHENs patent filings in countries
# Country Total Patents
#1 Canada 5
#2 United Kingdom 5
#3 United States 5

Patent filings per year

Chart showing SOUTHERDEN JOHN STEPHENs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Textiles and paper
#2 Machines

Focus technologies

# Technology
#1 Typewriters
#2 Unspecified technologies

Top inventors

# Name Total Patents
#1 Southerden John Stephen 15

Latest patents

Publication Filing date Title
GB190610101A Improvements in Line Spacers for Type Writing Machines.
GB190610100A Improvements in Line Spacers for Type Writing Machines.
GB190610099A Improvements in Line Spacers for Type Writing Machines.
CA100998A Typewriter mechanism
CA100997A Typewriter mechanism
CA100999A Typewriter mechanism
US886432A Line-spacer for type-writing machines.
US886433A Line-spacer for type-writing machines.
US864207A Line-spacer for type-writing machines.
US773602A Type-inking apparatus for type-writing machines.
US773603A Type-inking apparatus for type-writing machines.
CA96030A Inking device for type writing machines
CA96126A Inker for typewriting machines
GB190312959A Improvements in Type-inking Apparatus for Type-writing Machines.
GB190312953A Improvements in Type-inking Apparatus for Type-writing Machines.