David A. Pappal has been granted 14 US patents while listed as an inventor at ExxonMobil . The first was granted in 1988 and the most recent in November 2012. David A. Pappal ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list David A. Pappal in Sewell, NJ, US.
Patents per Year Patents granted per year, 1988 to 2012 Bar chart with a peak of 3 patents in 1990. peak 3 1988: 1 patents 1988 1990: 3 patents 1990 1991: 2 patents 1991 1994: 1 patents 1994 1995: 1 patents 1995 1996: 1 patents 1996 2001: 1 patents 2001 2004: 2 patents 2004 2007: 1 patents 2007 2012: 1 patents 2012 Issued Patents All Time
Showing 1–14 of 14 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
8303804 Process to improve jet fuels Terry E. Helton , William J. Tracy, III , Michael T. Grove , Dennis H. Hoskin , Philip J. Angevine 2012-11-06
$467,640,000
7261805 Process for catalytic dewaxing and catalytic cracking of hydrocarbon streams Michael T. Grove , Randall D. Partridge , Terry E. Helton , Philip J. Angevine , Dominick N. Mazzone 2007-08-28
$629,888,000
6709571 Low pressure naphtha hydrocracking process Kenneth J. Del Rossi , Brenda H. Rose 2004-03-23
6676829 Process for removing sulfur from a hydrocarbon feed Philip J. Angevine , Anna B. Gorshteyn , Larry A. Green , Yuk-Mui Louie , Peter J. Owens +2 more 2004-01-13
6261441 Integrated hydroprocessing scheme with segregated recycle Arthur R. Gentry , Kenneth W. Goebel , Timothy L. Hilbert , Michael Glenn Hunter , Randall D. Partridge 2001-07-17
5512260 Reduction of sulfur content in a gaseous stream Thomas R. Kiliany , John P. McWilliams 1996-04-30
$46,027,000
5393717 Regeneration of noble metal containing zeolite catalysts via partial removal of carbonaceous deposits Minas R. Apelian , Anthony S. Fung , George H. Hatzikos , Clinton R. Kennedy , Chung-Hur Lee +2 more 1995-02-28
$63,004,000
5320742 Gasoline upgrading process David L. Fletcher , Timothy L. Hilbert , David W. Rumsey , Gerald J. Teitman 1994-06-14
$18,420,000
5062945 Method of FCC spent catalyst stripping for improved efficiency and reduced hydrocarbon flow to regenerator Paul H. Schipper 1991-11-05
$11,847,000
5006495 Fluid catalytic cracking regeneration Michael S. Sarli 1991-04-09
$16,318,000
4973398 Method of FCC spent catalyst stripping for improved efficiency and reduced hydrocarbon flow to regenerator Paul H. Schipper 1990-11-27
$11,384,000
4971681 Method and apparatus for improved FCC spent catalyst stripping Mohsen N. Harandi , Hartley Owen , Paul H. Schipper 1990-11-20
$15,698,000
4906354 Process for improving the thermal stability of jet fuels sweetened by oxidation Edward G. Barry , Joseph G. Bendoraitis , Perry W. Kirklin 1990-03-06
$8,430,000
4778665 Abatement of NO.sub.x in exhaust gases Sowmithri Krishnamurthy , John P. McWilliams , Catherine T. Sigal , Thomas R. Kiliany 1988-10-18
$13,175,000
