Inventor · disambiguated record

Charles Henry Grace

Also filed as: GRACE CHARLES H · GRACE CHARLES HENRY

2 granted patents·25 citations·filing 1996–2012

59Inventor score

Technology areasG10D

Files withGRACE CHARLES HENRY1

Top patents by PatentIndex Score

2 records

0160US5808218AExpressive musical instrument with which accurate pitch can be played easilyFiled 1996·Granted Sep 15, 1998·21 cites·22 claims
0259US8569605B2Musical wind instrument with electronic tuningGRACE CHARLES HENRY·Filed 2012·Granted Oct 29, 2013·4 cites·14 claims

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