Individual holder
CHAPMAN EMMETT H
US·11 granted patents·235 citations·filing 1976–2009
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
11 records- 0192US8324489B1“Railboard” fingerboard with integrated frets for stringed musical instrumentsCHAPMAN EMMETT H·Filed 2009·Granted Dec 4, 2012·18 cites·28 claims
- 0289US5140887AStringless fingerboard synthesizer controllerCHAPMAN EMMETT H·Filed 1991·Granted Aug 25, 1992·65 cites·11 claims
- 0375US5079536APressure transducer for musical instrument controlCHAPMAN EMMETT H·Filed 1990·Granted Jan 7, 1992·30 cites·20 claims
- 0475US4633754AFret rod for stringed musical instrumentsCHAPMAN EMMETT H·Filed 1986·Granted Jan 6, 1987·25 cites·7 claims
- 0570US7629521B1Versatile neck truss system for stringed musical instrumentsCHAPMAN EMMETT H·Filed 2008·Granted Dec 8, 2009·7 cites·14 claims
- 0670US4649785AMusical timbre modification methodCHAPMAN EMMETT H·Filed 1980·Granted Mar 17, 1987·13 cites·4 claims
- 0767US4922797ALayered voice musical self-accompaniment systemCHAPMAN EMMETT H·Filed 1988·Granted May 8, 1990·21 cites·9 claims
- 0863US5285710AAdjustable bridge for a stringed musical instrumentCHAPMAN EMMETT H·Filed 1992·Granted Feb 15, 1994·17 cites·15 claims
- 0962USD275111SElectronic timbre controller for musical instrumentsCHAPMAN EMMETT H·Filed 1982·Granted Aug 14, 1984·8 cites·1 claims
- 1061US4142436AMethod of playing stringed musical instrumentCHAPMAN EMMETT H·Filed 1976·Granted Mar 6, 1979·16 cites·4 claims
- 1158US4953435ARear-access trussed neck construction for stringed musical instrumentsCHAPMAN EMMETT H·Filed 1990·Granted Sep 4, 1990·15 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when CHAPMAN EMMETT H files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →