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FRANKLIN JOHN L

Overview
  • Total Patents
    12
About

FRANKLIN JOHN L has a total of 12 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States and Canada. Its main competitors in its focus markets telecommunications, audio-visual technology and measurement are CHIESUKOMU SERVICE ENGINEERING, MONARCH TELEPHONE MFG COMPANY and ROBOPHONE LTD.

Patent filings in countries

World map showing FRANKLIN JOHN Ls patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 3

Patent filings per year

Chart showing FRANKLIN JOHN Ls patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Franklin John L 12

Latest patents

Publication Filing date Title
US2862065A Announcing machines
US2680785A Sound head mounting
US2444818A Announcing machine and system
US2285425A Announcing machine and system
US2207855A Phonographic announcing mechanism and system
US2011216A Phonographic announcing mechanism or the like
US2005653A Time controlled mechanism
US1921742A Announcing apparatus
US1862475A Announcing device
CA424893A Announcing machine and system
CA365174A Phonographic announcing mechanism
CA399090A Phonographic announcing mechanism