Inventor · disambiguated record
Cynthia D. Bellefeuille
Also filed as: BELLEFEUILLE CYNTHIA D
4 granted patents·250 citations·filing 1997–1999
83Inventor score
Technology areasB01D
Top patents by PatentIndex Score
4 records- 0191US6077335AFilter and method for making a filterDONALDSON CO INC·Filed 1999·Granted Jun 20, 2000·98 cites·37 claims
- 0287US5997618AFilter and method for making a filterDONALDSON CO INC·Filed 1997·Granted Dec 7, 1999·73 cites·21 claims
- 0381US5869009AFilter deviceDONALDSON CO INC·Filed 1997·Granted Feb 9, 1999·57 cites·23 claims
- 0455US6168681B1Method of making a filter deviceDONALDSON & COMPANY INC·Filed 1998·Granted Jan 2, 2001·22 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Cynthia D. Bellefeuille 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 →