Inventor · disambiguated record
Ricardo Dreyfous
Also filed as: DREYFOUS RICARDO
4 granted patents·1 pending application·43 citations·filing 1993–2005
76Inventor score
Technology areasG09B
Files withDREYFOUS RICARDO1
Top patents by PatentIndex Score
5 records- 0173US6575755B2Fraction circleFiled 2000·Granted Jun 10, 2003·19 cites·13 claims
- 0252US2006147891A1Education management system including lesson plan file compilationDREYFOUS RICARDO·Filed 2005·Application pending·0 cites
- 0333US5645431ATeaching apparatus and method for visually representing mathematical expressionsFiled 1994·Granted Jul 8, 1997·10 cites·7 claims
- 0431US5820381ATeaching apparatus and method for visually representing mathematical expressionsFiled 1997·Granted Oct 13, 1998·9 cites·4 claims
- 0526US5433611ATeaching apparatus and method for visually representing polynomial expressionsFiled 1993·Granted Jul 18, 1995·5 cites·21 claims
Join the waitlist — get patent alerts
Get an alert when Ricardo Dreyfous 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 →