Inventor · disambiguated record
David A. Pappal
Also filed as: PAPPAL DAVID A
14 granted patents·1 pending application·507 citations·filing 1987–2008
94Inventor score
Top patents by PatentIndex Score
15 records- 0192US5320742AGasoline upgrading processMOBIL OIL CORP·Filed 1992·Granted Jun 14, 1994·86 cites·25 claims
- 0291US6261441B1Integrated hydroprocessing scheme with segregated recycleMOBIL OIL CORP·Filed 1998·Granted Jul 17, 2001·101 cites·16 claims
- 0391US4778665AAbatement of NOx in exhaust gasesMOBIL OIL CORP·Filed 1987·Granted Oct 18, 1988·71 cites·30 claims
- 0487US7261805B2Process for catalytic dewaxing and catalytic cracking of hydrocarbon streamsEXXONMOBIL RES & ENG CO·Filed 2003·Granted Aug 28, 2007·43 cites·9 claims
- 0585US5512260AReduction of sulfur content in a gaseous streamMOBIL OIL CORP·Filed 1994·Granted Apr 30, 1996·63 cites·17 claims
- 0684US8303804B2Process to improve jet fuelsHELTON TERRY E·Filed 2008·Granted Nov 6, 2012·17 cites·18 claims
- 0771US5062945AMethod of FCC spent catalyst stripping for improved efficiency and reduced hydrocarbon flow to regeneratorMOBIL OIL CORP·Filed 1989·Granted Nov 5, 1991·27 cites·10 claims
- 0867US6676829B1Process for removing sulfur from a hydrocarbon feedMOBIL OIL CORP·Filed 1999·Granted Jan 13, 2004·35 cites·8 claims
- 0954US5393717ARegeneration of noble metal containing zeolite catalysts via partial removal of carbonaceous depositsMOBIL OIL CORP·Filed 1993·Granted Feb 28, 1995·16 cites·25 claims
- 1049US5006495AFluid catalytic cracking regenerationMOBIL OIL CORP·Filed 1990·Granted Apr 9, 1991·13 cites·2 claims
- 1149US4971681AMethod and apparatus for improved FCC spent catalyst strippingMOBIL OIL CORP·Filed 1989·Granted Nov 20, 1990·10 cites·9 claims
- 1247US6709571B1Low pressure naphtha hydrocracking processMOBIL OIL CORP·Filed 1999·Granted Mar 23, 2004·14 cites·9 claims
- 1337US4973398AMethod of FCC spent catalyst stripping for improved efficiency and reduced hydrocarbon flow to regeneratorMOBIL OIL CORP·Filed 1988·Granted Nov 27, 1990·5 cites·4 claims
- 1436US2002112989A1Hydrogenation processFiled 2001·Application pending·0 cites
- 1533US4906354AProcess for improving the thermal stability of jet fuels sweetened by oxidationMOBIL OIL CORP·Filed 1987·Granted Mar 6, 1990·6 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →