Inventor · disambiguated record
Mark Clift Southby
Also filed as: SOUTHBY MARK C · SOUTHBY MARK CLIFT
5 granted patents·11 pending applications·38 citations·filing 2003–2021
69Inventor score
Top patents by PatentIndex Score
16 records- 0190US10913916B2Lubricating compositionSHELL OIL CO·Filed 2015·Granted Feb 9, 2021·38 cites·9 claims
- 0254US2017009180A1Lubricating compositionSHELL OIL CO·Filed 2014·Application pending·0 cites
- 0352US11499106B2Fuel compositionsSHELL OIL CO·Filed 2019·Granted Nov 15, 2022·0 cites·12 claims
- 0451US2016010023A1Lubricating compositionSHELL OIL CO·Filed 2014·Application pending·0 cites
- 0548US2010024287A1Liquid fuel compositionsSMITH SUSAN JANE·Filed 2009·Application pending·0 cites
- 0646US12104137B2Engine oil compositionSHELL OIL CO·Filed 2021·Granted Oct 1, 2024·0 cites·5 claims
- 0745US2014315770A1Lubricating compositionSHELL OIL CO·Filed 2014·Application pending·0 cites
- 0845US2021380894A1Fuel compositionsSHELL OIL CO·Filed 2019·Application pending·0 cites
- 0944US11499107B2Liquid fuel compositionsSHELL OIL CO·Filed 2019·Granted Nov 15, 2022·0 cites·5 claims
- 1044US8633142B2Poly (hydroxycarboxylic acid) amide salt derivative and lubricating composition containing itCARTY JAN ELSA EUGENIA·Filed 2009·Granted Jan 21, 2014·0 cites·12 claims
- 1144US2015024979A1Low viscosity lubricant compositionsSHELL OIL CO·Filed 2014·Application pending·0 cites
- 1243US2008026973A1Lubricating oil compositionNELSON DAVID C·Filed 2007·Application pending·0 cites
- 1340US2005170976A1Oil composition and method of detecting a marker in an oil compositionFiled 2003·Application pending·0 cites
- 1440US2017275555A1Lubricating compositionSHELL OIL CO·Filed 2015·Application pending·0 cites
- 1538US2020095516A1Lubricating compositionSHELL INT RESEARCH·Filed 2018·Application pending·0 cites
- 1634US2018037838A1Use of a lubricating compositionSHELL OIL CO·Filed 2016·Application pending·0 cites
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