Assignee
COLES DONALD K
16 granted patents·334 citations·filing 1974–1991
Top patents by PatentIndex Score
16 records- 0198US4172434AInternal combustion engineCOLES DONALD K·Filed 1978·Granted Oct 30, 1979·122 cites·4 claims
- 0282US4366793AInternal combustion engineCOLES DONALD K·Filed 1980·Granted Jan 4, 1983·31 cites·3 claims
- 0380US3986422AElectronic musical instrumentCOLES DONALD K·Filed 1975·Granted Oct 19, 1976·19 cites·14 claims
- 0471US4048893AElectronic musical instrumentCOLES DONALD K·Filed 1976·Granted Sep 20, 1977·18 cites·9 claims
- 0570US5129303AMusical equipment enabling a fixed selection of digitals to sound different musical scalesCOLES DONALD K·Filed 1991·Granted Jul 14, 1992·23 cites·7 claims
- 0670US3943811AKeyboard type musical instrumentCOLES DONALD K·Filed 1974·Granted Mar 16, 1976·16 cites·4 claims
- 0769US4009633AElectronic musical instrumentCOLES DONALD K·Filed 1975·Granted Mar 1, 1977·13 cites·7 claims
- 0863US4640173AElectronic musical instrumentCOLES DONALD K·Filed 1985·Granted Feb 3, 1987·17 cites·9 claims
- 0963US4372269AInternal combustion engineCOLES DONALD K·Filed 1981·Granted Feb 8, 1983·14 cites·3 claims
- 1057US3973460AKeyboard type musical instrumentCOLES DONALD K·Filed 1974·Granted Aug 10, 1976·10 cites·3 claims
- 1156US4903572AApparatus for musical scale selection and key signature actuationCOLES DONALD K·Filed 1988·Granted Feb 27, 1990·13 cites·15 claims
- 1253US4750399AElectronic musical instrumentCOLES DONALD K·Filed 1986·Granted Jun 14, 1988·12 cites·17 claims
- 1347US4903571AKey signature actuator for a musical keyboardCOLES DONALD K·Filed 1988·Granted Feb 27, 1990·9 cites·9 claims
- 1447US4821619AKey signature actuator for a musical keyboardCOLES DONALD K·Filed 1988·Granted Apr 18, 1989·9 cites·6 claims
- 1540US4056032AMusical apparatusCOLES DONALD K·Filed 1976·Granted Nov 1, 1977·4 cites·6 claims
- 1636US3949638AElectronic musical instrumentCOLES DONALD K·Filed 1974·Granted Apr 13, 1976·4 cites·4 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →