Inventor · disambiguated record
Dennis W. Keppers
Also filed as: KEPPERS DENNIS · KEPPERS DENNIS W
6 granted patents·3 pending applications·95 citations·filing 2004–2023
84Inventor score
Files withMARATHON PETROLEUM CO LP4MARATHON PETROLEUM COMPANY2MARATHON PETROLEUM COMPANY LLC2MARATHON ASHLAND PETROLEUM LLC1
Top patents by PatentIndex Score
9 records- 0196USRE49447EMethod of making an asphalt composition containing ester bottomsMARATHON PETROLEUM CO LP·Filed 2021·Granted Mar 7, 2023·3 cites·36 claims
- 0294US10323148B1Method of making an asphalt composition containing ester bottomsMARATHON PETROLEUM COMPANY·Filed 2017·Granted Jun 18, 2019·16 cites·6 claims
- 0393US10323147B1Asphalt composition containing ester bottomsMARATHON PETROLEUM COMPANY·Filed 2017·Granted Jun 18, 2019·10 cites·12 claims
- 0492US7988753B1Method and apparatus for recovery and recycling of hydrogenMARATHON PETROLEUM CO LP·Filed 2009·Granted Aug 2, 2011·33 cites·8 claims
- 0587USRE50456EMethod of making an asphalt composition containing ester bottomsMARATHON PETROLEUM CO LP·Filed 2023·Granted Jun 10, 2025·0 cites·26 claims
- 0684US7637970B1Method and apparatus for recovery and recycling of hydrogenMARATHON ASHLAND PETROLEUM LLC·Filed 2004·Granted Dec 29, 2009·33 cites·11 claims
- 0744US2014008268A1Integrating An Atmospheric Fractionator With A Diluent Recovery Unit And A Resid HydrocrackerMARATHON PETROLEUM CO LP·Filed 2013·Application pending·0 cites
- 0843US2010206773A1Conversion of a light sweet refinery to a heavy sour refineryMARATHON PETROLEUM COMPANY LLC·Filed 2009·Application pending·0 cites
- 0943US2010206772A1Process for the fractionation of diluted bitumen for use in light sweet refineryMARATHON PETROLEUM COMPANY LLC·Filed 2009·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →