Inventor · disambiguated record
Petrie Johan Van Der Plaats
Also filed as: VAN DER PLAATS PETRIE J · VAN DER PLAATS PETRIE JOHAN
3 granted patents·13 citations·filing 1975–1985
64Inventor score
Technology areasH04M
Files withPHILIPS CORP3
Top patents by PatentIndex Score
3 records- 0143US3973082AElectronic telephone subscriber set with voltage controlled variable shuntPHILIPS CORP·Filed 1975·Granted Aug 3, 1976·6 cites·3 claims
- 0235US3978295ACircuit arrangement for a tone pushbutton selection telephone subscriber setPHILIPS CORP·Filed 1975·Granted Aug 31, 1976·4 cites·4 claims
- 0327US4680789AAudio transmission circuit comprising a transmit amplifier in the form of a line voltage stabilizerPHILIPS CORP·Filed 1985·Granted Jul 14, 1987·3 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →