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MCINTOSH FRANK H

Overview
  • Total Patents
    11
About

MCINTOSH FRANK H has a total of 11 patent applications. Its first patent ever was published in 1943. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets electrical machinery and energy, basic communication technologies and telecommunications are JIN OK SANG, MCCALLISTER RONALD DUANE and REVELATION PATENTS HOLDING COM.

Patent filings in countries

World map showing MCINTOSH FRANK Hs patent filings in countries
# Country Total Patents
#1 United States 9
#2 Canada 1
#3 Germany 1

Patent filings per year

Chart showing MCINTOSH FRANK Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Mcintosh Frank H 11

Latest patents

Publication Filing date Title
US3956599A Dome loudspeaker
US3235804A Receiver for lecture broadcasting system
US3078348A Lecture broadcasting system
US2860192A Amplifiers
US2646467A Wide band amplifier
US2477074A Wide band amplifier coupling circuits
US2654058A Wide band transformer
US2463635A Electron discharge device and method of making the same
US2415360A Method of making electron discharge devices
CA516429A Wide band amplifier coupling circuits