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STONE STONE JOHN

Overview
  • Total Patents
    17
About

STONE STONE JOHN has a total of 17 patent applications. Its first patent ever was published in 1899. It filed its patents most often in Canada and United States. Its main competitors in its focus markets audio-visual technology are SYSTEM TEXT AB, HATTORI YOSHITAKA and HILDBURGH WALTER LEO.

Patent filings in countries

World map showing STONE STONE JOHNs patent filings in countries
# Country Total Patents
#1 Canada 16
#2 United States 1

Patent filings per year

Chart showing STONE STONE JOHNs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Audio-visual technology

Focus technologies

# Technology
#1 Advertising

Top inventors

# Name Total Patents
#1 Stone Stone John 17
#2 Gordon Wilson 1

Latest patents

Publication Filing date Title
US1822511A Advertising device
CA90835A Space telegraphy
CA90836A Space telegraphy
CA90838A Space telegraphy
CA90839A Space telegraphy
CA90829A Space telegraphy receiver
CA90830A Space telegraphy
CA90841A Space telegraphy
CA90833A Space telegraphy
CA90828A Telegraph receiver
CA90832A Space telegraphy
CA92617A Space telegraphy
CA90834A Space telegraphy
CA90837A Space telegraphy
CA90840A Space telegraphy
CA90831A Space telegraphy
CA64275A Electro magnet