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USPTO Patent Rankings Data through Dec 31, 2025
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Simon R. Kelemen — 21 Patents

ExxonMobil: 21 patents #489 of 10,161Top 5%
Annandale, NJ: #23 of 185 inventorsTop 15%
New Jersey: #3,775 of 69,400 inventorsTop 6%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Simon R. Kelemen has been granted 21 US patents while listed as an inventor at ExxonMobil. The first was granted in 1998 and the most recent in January 2017. Simon R. Kelemen ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Simon R. Kelemen in Annandale, NJ, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9552462 Method for predicting composition of petroleum Clifford C. Walters, Howard Freund, Paul J. Hicks, Jr. 2017-01-24 $206,024,000
8658025 Biomass conversion process Michael Siskin, Glen E. Phillips, Walter Weissman 2014-02-25 $79,407,000
8603325 Biomass oil conversion process Michael Siskin, Glen E. Phillips, Walter Weissman 2013-12-10 $146,910,000
8502003 Biomass conversion using carbon monoxide and water Michael Siskin, Glen E. Phillips 2013-08-06 $76,373,000
8500829 Biomass oil conversion using carbon monoxide and water Michael Siskin, Glen E. Phillips 2013-08-06 $76,373,000
8480765 Biomass oil conversion process Michael Siskin, Glen E. Phillips 2013-07-09 $65,662,000
8352228 Method for predicting petroleum expulsion Clifford C. Walters, Howard Freund, Mehmet Deniz Ertas, William A. Symington 2013-01-08 $133,798,000
8147676 Delayed coking process Michael Siskin, David T. Ferrughelli, Martin L. Gorbaty, Leo D. Brown 2012-04-03 $124,635,000
8101066 Fluidized coking process Michael Siskin, Christopher P. Eppig 2012-01-24 $250,018,000
7344889 Chemical structural and compositional yields model for predicting hydrocarbon thermolysis products Howard Freund, Michael Siskin, David J. Curry, Yitian Xiao, William N. Olmstead +2 more 2008-03-18 $284,420,000
7306713 Delayed coking process for producing free-flowing coke using a substantially metals-free additive Michael Siskin, Martin L. Gorbaty, Christopher P. Eppig, David T. Ferrughelli, Leo D. Brown 2007-12-11 $407,637,000
7303664 Delayed coking process for producing free-flowing coke using a metals-containing additive Michael Siskin, Christopher P. Eppig, Martin L. Gorbaty, Leo D. Brown, David T. Ferrughelli +1 more 2007-12-04 $459,969,000
7226489 Gasoline additives for reducing the amount of internal combustion engine intake valve deposits and combustion chamber deposits Michael Siskin, Kenneth D. Rose, Harald Schwahn, Marco Bergemann, Michael Ehle +1 more 2007-06-05 $471,353,000
7204863 Gasoline additives for reducing the amount of internal combustion engine intake valve deposits and combustion chamber deposits Michael Siskin, Kenneth D. Rose, Harald Schwahn, Marco Bergemann, Michael Ehle +1 more 2007-04-17 $283,918,000
6860985 Process for increasing yield in coking processes Michael Siskin, Ramesh R. Hemrajani, Glen E. Phillips, Kuangnan Qian 2005-03-01 $441,149,000
6830677 Process for reducing coke agglomeration in coking processes Michael Siskin 2004-12-14 $191,247,000
6787024 Process for reducing coke agglomeration in coking processes Michael Siskin 2004-09-07 $123,027,000
6773579 Process for reducing fouling in refinery processes Michael Siskin 2004-08-10 $174,462,000
6585883 Mitigation and gasification of coke deposits Michael Siskin, Glen E. Phillips, Nicholas C. Nahas 2003-07-01 $241,262,000
6533922 Process for reducing fouling in coking processes Michael Siskin 2003-03-18 $175,455,000
5752990 Composition and method for reducing combustion chamber deposits, intake valve deposits or both in spark ignition internal combustion engines Michael Siskin 1998-05-19 $156,532,000