Inventor · disambiguated record
Ronald Ferreira
Also filed as: FERREIRA RONALD
3 granted patents·353 citations·filing 1995–1997
76Inventor score
Top patents by PatentIndex Score
3 records- 0191US6115601APayment scheme for a mobile communication servicePHILIPS CORP·Filed 1997·Granted Sep 5, 2000·302 cites·20 claims
- 0249US5748782ADevice for implementing a message signature system and chip card comprising such a deviceRUE CARTES ET SYSTEMS SAS DE·Filed 1995·Granted May 5, 1998·44 cites·22 claims
- 0329US5889622AData processing device including a microprocessor and an additional arithmetic unitPHILIPS CORP·Filed 1997·Granted Mar 30, 1999·7 cites·4 claims
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