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AMPHION PIANO PLAYER COMPANY

Overview
  • Total Patents
    37
About

AMPHION PIANO PLAYER COMPANY has a total of 37 patent applications. Its first patent ever was published in 1902. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets consumer goods, engines, pumps and turbines and computer technology are MAIER LOUIS H, WILCOX & WHITE CO and COLDMAN HENRY CHARLES.

Patent filings in countries

World map showing AMPHION PIANO PLAYER COMPANYs patent filings in countries
# Country Total Patents
#1 United States 34
#2 Canada 1
#3 Germany 1
#4 France 1

Patent filings per year

Chart showing AMPHION PIANO PLAYER COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Doman Lewis B 30
#2 Doman Lewis Benjamin 3
#3 Doman Lewis Benj 2

Latest patents

Publication Filing date Title
US1337645A Motor-mounting for bellows-pumps
US1440662A Self-playing musical instrument
US1293729A Wind-inducing device for self-playing musical instruments.
US1256988A Tone-modulating apparatus for self-playing musical instruments.
US1269407A Pneumatic self-playing musical instrument.
US1169741A Note-sheet for self-playing musical instruments.
US1258399A Pneumatic selective device.
US1232664A Tenison-regulating apparatus for pneumatic self-playing musical instruments.
US1326581A Self-playing musical instrument.
US1215625A Pedal-action for self-playing musical instruments.
US1118189A Pneumatic self-playing musical instrument.
US1160054A Tempo-governor for self-playing musical instruments.
US1149996A Pumping mechanism for self-playing musical instruments.
US1269406A Self-playing musical instrument.
US1232663A Music-sheet.
US1186975A Self-playing piano.
US1141044A Self-playing musical instrument.
US1017857A Valve for pneumatic actions.
US1132517A Tracker-shifting device for self-playing musical instruments.
US1141621A Pneumatic self-playing musical instrument.