Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
WS

Willibald Serrand — 13 Patents

ExxonMobil: 13 patents #880 of 10,161Top 9%
Buxheim, DE: #2 of 34 inventorsTop 6%
Overall (All Time): #362,438 of 4,157,543Top 9%
13 Patents All Time
Willibald Serrand has been granted 13 US patents while listed as an inventor at ExxonMobil. The first was granted in 1991 and the most recent in November 2003. Willibald Serrand ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Willibald Serrand in Buxheim, DE.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6652739 Process for deasphalting residua by reactive recycle of high boiling material Mitchell Jacobson, Norman H. Sweed, Hans-Jurgen Weiss, Ingo Dreher, Udo Zentner +1 more 2003-11-25 $105,544,000
6352638 Two-stage process for converting residua to gasoline blendstocks and light olefins Mitchell Jacobson 2002-03-05 $540,030,000
6179993 Process for obtaining olefins from residual feedstocks Noel M. Seimandi, Tony T. Cheng, Mitchell Jacobson, Paul K. Ladwig, John F. Pagel +2 more 2001-01-30 $483,593,000
5952539 Dual process for obtaining olefins Noel M. Seimandi, Tony T. Cheng, Mitchell Jacobson, Paul K. Ladwig, John F. Pagel +2 more 1999-09-14 $169,719,000
5919352 Integrated residua upgrading and fluid catalytic cracking David G. Hammond, Mitchell Jacobson, John F. Pagel, Martin C. Poole 1999-07-06 $238,573,000
5879536 Two-stage process for obtaining significant olefin yields from residua feedstocks Mitchell Jacobson 1999-03-09 $153,002,000
5879535 Two-stage process for obtaining significant olefin yields from residua feedstocks Mitchell Jacobson, Michael R. Parrish, David G. Hammond 1999-03-09 $153,002,000
5714663 Process for obtaining significant olefin yields from residua feedstocks Mitchell Jacobson, Paul K. Ladwig, John F. Pagel, Michael R. Parrish, Noel M. Seimandi +1 more 1998-02-03 $147,648,000
5714056 Process for deasphalting residua (HEN9511) David G. Hammond, Mitchell Jacobson, John F. Pagel, Martin C. Poole 1998-02-03 $147,648,000
5658455 Fluidized bed coking process David G. Hammond, Mitchell Jacobson, John F. Pagel, Martin C. Poole, Robert C. Green 1997-08-19 $229,086,000
5365006 Process and apparatus for dehydrogenating alkanes 1994-11-15 $58,419,000
5348642 Catalytic cracking process with circulation of hot, regenerated catalyst to the stripping zone Philip Holmes, Todd R. Steffens, Patrick Terry, Paul E. Eberly, Jr. 1994-09-20 $32,722,000
5023069 Process for removing sulfur moieties from Claus tail-gas 1991-06-11 $56,092,000