Inventor · disambiguated record
Marc A. Herpfer
Also filed as: HERPFER MARC · HERPFER MARC A
5 granted patents·2 pending applications·33 citations·filing 1995–2017
76Inventor score
Top patents by PatentIndex Score
7 records- 0168US6365536B1Method of making bleaching clayOIL DRI CORP OF AMERICA·Filed 2000·Granted Apr 2, 2002·13 cites·31 claims
- 0248US5783511AProcess for selecting raw material and making a bleaching clayOIL DRI CORP OF AMERICA·Filed 1995·Granted Jul 21, 1998·14 cites·8 claims
- 0345US9458475B2Clay in ethanol productionOIL-DRI CORP OF AMERICA·Filed 2013·Granted Oct 4, 2016·0 cites·15 claims
- 0442US2008023889A1Brick additives comprising colorants and methodCHESHIRE MICHAEL C·Filed 2006·Application pending·0 cites
- 0540US2017251674A1Application of porous materials for bacterial quorum sensing inhibition/disruptionOIL-DRI CORP OF AMERICA·Filed 2017·Application pending·0 cites
- 0637US6872677B2Brick additives and methods for using sameOIL DRI CORP OF AMERICA·Filed 2002·Granted Mar 29, 2005·1 cites·109 claims
- 0734US6093669AMethod for selecting raw material for bleaching clayOIL DRI CORP OF AMERICA·Filed 1998·Granted Jul 25, 2000·5 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Marc A. Herpfer 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 →