Inventor · disambiguated record
Walter D. Vann
Also filed as: VANN WALTER D · VANN WALTER DAVID
13 granted patents·84 citations·filing 2002–2018
89Inventor score
Files withEXXONMOBIL RES & ENG CO7LETA DANIEL P2SOTO JORGE L2RATERMAN MICHAEL F1WU MARGARET MAY-SOM1
Top patents by PatentIndex Score
13 records- 0195US8399390B2HVI-PAO in industrial lubricant and grease compositionsWU MARGARET MAY-SOM·Filed 2005·Granted Mar 19, 2013·17 cites·13 claims
- 0286US8613852B2Process for producing a high stability desulfurized heavy oils streamLETA DANIEL P·Filed 2010·Granted Dec 24, 2013·7 cites·23 claims
- 0380US7109729B2Method for analysis of a working fluid using impedance spectroscopyEXXONMOBIL RES & ENG CO·Filed 2003·Granted Sep 19, 2006·23 cites·7 claims
- 0470US7172903B2Method for on-line monitoring of lubricating oil using light in the visible and near IR spectraEXXONMOBIL RES & ENG CO·Filed 2003·Granted Feb 6, 2007·14 cites·8 claims
- 0568US6876193B2Method for deconvolution of impedance spectraEXXONMOBIL RES & ENG CO·Filed 2004·Granted Apr 5, 2005·9 cites·8 claims
- 0665US8894845B2Alkali metal hydroprocessing of heavy oils with enhanced removal of coke productsEXXONMOBIL RES & ENG CO·Filed 2012·Granted Nov 25, 2014·1 cites·40 claims
- 0765US7176168B2Lubricant containing a synergistic combination of rust inhibitors, antiwear agents, and a phenothiazine antioxidantEXXONMOBIL RES & ENG CO·Filed 2004·Granted Feb 13, 2007·8 cites·8 claims
- 0864US8673132B2Heavy oil conversion process with in-situ potassium sulfide generationLETA DANIEL P·Filed 2012·Granted Mar 18, 2014·1 cites·21 claims
- 0962US8696890B2Desulfurization process using alkali metal reagentSOTO JORGE L·Filed 2010·Granted Apr 15, 2014·1 cites·15 claims
- 1052US6872692B2Synthetic hydrocarbon fluidEXXONMOBIL RES & ENG CO·Filed 2002·Granted Mar 29, 2005·3 cites·20 claims
- 1146US10942161B2Electrostatic varnish and precursor detection in lubricantsEXXONMOBIL RES & ENG CO·Filed 2018·Granted Mar 9, 2021·0 cites·18 claims
- 1245US8778173B2Process for producing a high stability desulfurized heavy oils streamRATERMAN MICHAEL F·Filed 2009·Granted Jul 15, 2014·0 cites·21 claims
- 1342US8404106B2Regeneration of alkali metal reagentSOTO JORGE L·Filed 2010·Granted Mar 26, 2013·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →