Inventor · disambiguated record

R. D. Forsgren

Also filed as: FORSGREN R D · FORSGREN R DAVID

2 granted patents·300 citations·filing 1990–1991

71Inventor score

Technology areasA62B

Files withDONALDSON CO INC2

Top patents by PatentIndex Score

2 records

0191US5222488ARespirator air filter cartridge with a replaceable filter elementDONALDSON CO INC·Filed 1991·Granted Jun 29, 1993·246 cites·17 claims
0270US5063926ARespirator cartridge with sealant dispersion memberDONALDSON CO INC·Filed 1990·Granted Nov 12, 1991·54 cites·10 claims

Join the waitlist — get patent alerts

Get an alert when R. D. Forsgren 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 →

R. D. Forsgren — Patent Inventor | PatentIndex