Inventor · disambiguated record
David C. Kramer
Also filed as: KRAMER DAVID · KRAMER DAVID C · KRAMER DAVID CHRISTIAN
28 granted patents·5 pending applications·978 citations·filing 1984–2014
97Inventor score
Top patents by PatentIndex Score
33 records- 0194US7144497B2Blending of low viscosity Fischer-Tropsch base oils with conventional base oils to produce high quality lubricating base oilsCHEVRON USA INC·Filed 2002·Granted Dec 5, 2006·52 cites·17 claims
- 0294US7083713B2Composition of lubricating base oil with high monocycloparaffins and low multicycloparaffinsCHEVRON USA INC·Filed 2003·Granted Aug 1, 2006·70 cites·33 claims
- 0394US5076908AMethod and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bedCHEVRON RES & TECH·Filed 1989·Granted Dec 31, 1991·72 cites·13 claims
- 0494US4615796AMethod for contacting solids-containing feeds in a layered bed reactorCHEVRON RES·Filed 1984·Granted Oct 7, 1986·69 cites·14 claims
- 0593US7141157B2Blending of low viscosity Fischer-Tropsch base oils and Fischer-Tropsch derived bottoms or bright stockCHEVRON USA INC·Filed 2003·Granted Nov 28, 2006·53 cites·37 claims
- 0693US5298152AProcess to prevent catalyst deactivation in activated slurry hydroprocessingCHEVRON RES & TECH·Filed 1992·Granted Mar 29, 1994·74 cites·13 claims
- 0792US7282134B2Process for manufacturing lubricating base oil with high monocycloparaffins and low multicycloparaffinsCHEVRON USA INC·Filed 2003·Granted Oct 16, 2007·60 cites·31 claims
- 0892US5472928ACatalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bedFiled 1994·Granted Dec 5, 1995·73 cites·69 claims
- 0991US7195706B2Finished lubricating comprising lubricating base oil with high monocycloparaffins and low multicycloparaffinsCHEVRON USA INC·Filed 2003·Granted Mar 27, 2007·44 cites·30 claims
- 1091US6086749ACatalyst and method for hydroprocessing a hydrocarbon feed stream in a reactor containing two or more catalystsCHEVRON USA INC·Filed 1997·Granted Jul 11, 2000·113 cites·30 claims
- 1181US4988433ADemetalation of hydrocarbonaceous feedstocks using monobasic carboxylic acids and salts thereofCHEVRON RES·Filed 1990·Granted Jan 29, 1991·50 cites·14 claims
- 1278US5866743AHydrodealkylation processesCHEVRON CHEM CO·Filed 1996·Granted Feb 2, 1999·40 cites·68 claims
- 1374US5849969AHydrodealkylation processesCHEVRON CHEM CO·Filed 1995·Granted Dec 15, 1998·33 cites·79 claims
- 1470US5733440ACatalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bedCHEVRON USA INC·Filed 1996·Granted Mar 31, 1998·26 cites·20 claims
- 1569US8480879B2Process for improving lubricating qualities of lower quality base oilROSENBAUM JOHN M·Filed 2008·Granted Jul 9, 2013·2 cites·39 claims
- 1669US6187725B1Process for making an automatic transmission fluid compositionCHEVRON USA INC·Filed 1998·Granted Feb 13, 2001·24 cites·26 claims
- 1768US5294329AProcess to prevent catalyst deactivation in activated slurry hydroprocessingCHEVRON RES & TECH·Filed 1992·Granted Mar 15, 1994·24 cites·16 claims
- 1865US5302357AApparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bedCHEVRON RES & TECH·Filed 1993·Granted Apr 12, 1994·19 cites·15 claims
- 1962US6905593B2Method for removing calcium from crude oilCHEVRON USA·Filed 2003·Granted Jun 14, 2005·11 cites·21 claims
- 2062US5599440ACatalyst method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bedCHEVRON USA INC·Filed 1995·Granted Feb 4, 1997·18 cites·69 claims
- 2158US5409598AMethod of hydroprocessingCHEVRON RES·Filed 1994·Granted Apr 25, 1995·14 cites·12 claims
- 2255USRE38532EHydrodealkylation processesCHEVRON PHILLIPS CHEMICAL CO·Filed 1999·Granted Jun 8, 2004·5 cites·151 claims
- 2355US2009159835A1Refrigeration oil from gas-to-liquid-derived and bio-derived triestersCHEVRON USA INC·Filed 2008·Application pending·0 cites
- 2455US2009159837A1Refrigeration oil from gas-to-liquid-derived and bio-derived diestersCHEVRON USA INC·Filed 2008·Application pending·0 cites
- 2551US2016032213A1Sae 15w-30 lubricating oil composition having improved oxidative stabilityGREEN JOHN COAKWELL·Filed 2014·Application pending·0 cites
- 2650US5498327ACatalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bedFiled 1995·Granted Mar 12, 1996·12 cites·72 claims
- 2748US8585919B2Refrigeration oil from gas-to-liquid derived and bio-derived diestersKRAMER DAVID C·Filed 2012·Granted Nov 19, 2013·0 cites·10 claims
- 2846US8795547B2Refrigeration oil from gas-to-liquid-derived and bio-derived triestersKRAMER DAVID C·Filed 2011·Granted Aug 5, 2014·0 cites·9 claims
- 2946US2009036546A1Medicinal Oil Compositions, Preparations, and Applications ThereofCHEVRON USA INC·Filed 2007·Application pending·0 cites
- 3044US5593573ADemetalation of hydrocarbonaceous feedstocks using sulfuric acid and salts thereofCHEVRON RES·Filed 1995·Granted Jan 14, 1997·11 cites·20 claims
- 3142US6110879AAutomatic transmission fluid compositionCHEVRON USA INC·Filed 1998·Granted Aug 29, 2000·9 cites·41 claims
- 3240US8051020B2Base oil properties expert systemCHEVRON USA INC·Filed 2008·Granted Nov 1, 2011·0 cites·3 claims
- 3336US2012028863A1Application-specific finished lubricant compositions comprising a bio-derived ester component and methods of making sameKRAMER DAVID CHRISTIAN·Filed 2010·Application pending·0 cites
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