Inventor · disambiguated record
Roberto Guelfo
Also filed as: GUELFO ROBERTO
4 granted patents·79 citations·filing 1977–1995
78Inventor score
Top patents by PatentIndex Score
4 records- 0183US5325158AVentilation and cooling device for a photocopierOLIVETTI CANON IND SPA·Filed 1993·Granted Jun 28, 1994·34 cites·8 claims
- 0264US4630077ASerial printhead ink supplyOLIVETTI & CO SPA·Filed 1984·Granted Dec 16, 1986·16 cites·8 claims
- 0363US5581334AElectrostatic image developing device having toner flow control and lumps formation prevention abilityOLIVETTI CANON IND SPA·Filed 1995·Granted Dec 3, 1996·21 cites·14 claims
- 0453US4129378AElectrophotographic copying machine having a masking device for different copy sheet formatsOLIVETTI & CO SPA·Filed 1977·Granted Dec 12, 1978·8 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Roberto Guelfo files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →