Inventor · disambiguated record
Volker Greif
Also filed as: GREIF VOLKER
16 granted patents·1 pending application·668 citations·filing 1998–2019
94Inventor score
Top patents by PatentIndex Score
17 records- 0197US6572667B1Filter systemMANN & HUMMEL FILTER·Filed 2000·Granted Jun 3, 2003·204 cites·10 claims
- 0296US7004986B2Filter in a filter housingMANN & HUMMEL GMBH·Filed 2003·Granted Feb 28, 2006·194 cites·20 claims
- 0391US8012227B2Filter for cleaning a fluidMANN & HUMMEL GMBH·Filed 2009·Granted Sep 6, 2011·21 cites·10 claims
- 0486US6306192B1HousingMANN & HUMMEL FILTER·Filed 1999·Granted Oct 23, 2001·76 cites·14 claims
- 0585US10427080B2Filter holder, filter element and filter arrangementMANN & HUMMEL GMBH·Filed 2016·Granted Oct 1, 2019·3 cites·8 claims
- 0685US6884273B2Multicell cyclone and method for producing itMANN & HUMMEL FILTER·Filed 2002·Granted Apr 26, 2005·36 cites·6 claims
- 0785US6602308B1Air filterMANN & HUMMEL FILTER·Filed 1998·Granted Aug 5, 2003·81 cites·1 claims
- 0880US8167965B2Filter for cleaning a fluidGREIF VOLKER·Filed 2011·Granted May 1, 2012·6 cites·9 claims
- 0979US8956431B2Two-part cyclone separatorMANN & HUMMEL GMBH·Filed 2013·Granted Feb 17, 2015·5 cites·12 claims
- 1075US9782701B2Centrifugal-force separator and filter arrangement having a centrifugal-force separator of said typeMANN & HUMMEL GMBH·Filed 2014·Granted Oct 10, 2017·4 cites·22 claims
- 1170US9470189B2Centrifugal separator and filter arrangement having a centrifugal separator of said typeMANN & HUMMEL GMBH·Filed 2014·Granted Oct 18, 2016·3 cites·20 claims
- 1269US7258727B2Apparatus for separating particles from a flowing mediumMANN & HUMMEL GMBH·Filed 2004·Granted Aug 21, 2007·15 cites·12 claims
- 1367US10350530B2Filter holder and filter arrangementMANN & HUMMEL GMBH·Filed 2016·Granted Jul 16, 2019·1 cites·12 claims
- 1466US11890567B2Filter holder, filter element and filter arrangementMANN & HUMMEL GMBH·Filed 2019·Granted Feb 6, 2024·0 cites·10 claims
- 1561US7244282B2Separator deviceMANN & HUMMEL GMBH·Filed 2004·Granted Jul 17, 2007·11 cites·6 claims
- 1636US6158471AMixing device for changing a fluid into another flowing fluidMANN & HUMMEL FILTER·Filed 1999·Granted Dec 12, 2000·8 cites·9 claims
- 1735US2016047342A1Centrifugal separator and filter arrangementMANN & HUMMEL GMBH·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →