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CHAPMAN EMMETT H

Overview
  • Total Patents
    12
About

CHAPMAN EMMETT H has a total of 12 patent applications. Its first patent ever was published in 1974. It filed its patents most often in United States and Canada. Its main competitors in its focus markets consumer goods, machines and electrical machinery and energy are MAAS ROWE ELECTROMUSIC CORP, ORMSTON BURNS LTD and GIBSON INC.

Patent filings in countries

World map showing CHAPMAN EMMETT Hs patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 1

Patent filings per year

Chart showing CHAPMAN EMMETT Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chapman Emmett H 12

Latest patents

Publication Filing date Title
US8324489B1 “Railboard” fingerboard with integrated frets for stringed musical instruments
US7629521B1 Versatile neck truss system for stringed musical instruments
US5285710A Adjustable bridge for a stringed musical instrument
US5140887A Stringless fingerboard synthesizer controller
US5079536A Pressure transducer for musical instrument control
US4953435A Rear-access trussed neck construction for stringed musical instruments
US4922797A Layered voice musical self-accompaniment system
US4633754A Fret rod for stringed musical instruments
US4649785A Musical timbre modification method
US4142436A Method of playing stringed musical instrument
CA1002353A Guitar-like instrument with magnetic pickup
US3868880A Musical instrument construction