Inventor · disambiguated record
Dirk Schönfeld
Also filed as: SCHONFELD DIRK · SCHÖNFELD DIRK
3 granted patents·1 pending application·12 citations·filing 2011–2025
60Inventor score
Technology areasB01D
Top patents by PatentIndex Score
4 records- 0182US9849408B2Filter elementSTEHLE GERHARD·Filed 2011·Granted Dec 26, 2017·12 cites·15 claims
- 0277US2025288926A1Replaceable filter elementRT FILTERTECHNIK GMBH·Filed 2025·Application pending·0 cites
- 0363US12350607B2Filter deviceRT FILTERTECHNIK GMBH·Filed 2020·Granted Jul 8, 2025·0 cites·15 claims
- 0450US10213709B2Filter element and hydraulic circuit with such a filter elementRT FILTERTECHNIK GMBH·Filed 2012·Granted Feb 26, 2019·0 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Dirk Schönfeld 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 →