Inventor · disambiguated record
Charles R. Groeschel
Also filed as: GROESCHEL CHARLES R
4 granted patents·54 citations·filing 1974–1977
76Inventor score
Top patents by PatentIndex Score
4 records- 0178US4023456AMusic encoding and decoding apparatusGROESCHEL CHARLES R·Filed 1974·Granted May 17, 1977·28 cites·19 claims
- 0260US4080863AElectrostatic expression encoding apparatus for percussive keyboard instrumentsGROESCHEL CHARLES R·Filed 1976·Granted Mar 28, 1978·11 cites·10 claims
- 0342US4140958ABattery charging apparatusRESOURCE ENGINEERING INC·Filed 1977·Granted Feb 20, 1979·13 cites·19 claims
- 0428US4198889AModulation circuitry for use in a music encoding systemGROESCHEL CHARLES R·Filed 1977·Granted Apr 22, 1980·2 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →