Inventor · disambiguated record
Norman F. Douglas
Also filed as: DOUGLAS NORMAN F
2 granted patents·66 citations·filing 1981–1983
66Inventor score
Technology areasH04M
Files withSPARTON CORP2
Top patents by PatentIndex Score
2 records- 0176US4628315AAddressable transducer with improved address signal processingSPARTON CORP·Filed 1983·Granted Dec 9, 1986·41 cites·4 claims
- 0268US4399440AAddressable transducer with a variable frequency oscillation for monitoring a physical quantitySPARTON CORP·Filed 1981·Granted Aug 16, 1983·25 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →