Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Marc L. DeChellis — 12 Patents

ExxonMobil: 8 patents #1,392 of 10,161Top 15%
UTUnivation Technologies: 4 patents #101 of 289Top 35%
Houston, TX: #1,852 of 21,073 inventorsTop 9%
Texas: #12,706 of 125,132 inventorsTop 15%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
Marc L. DeChellis has been granted 12 US patents while listed as an inventor at ExxonMobil. The first was granted in 1994 and the most recent in December 2021. Marc L. DeChellis ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Marc L. DeChellis in Houston, TX, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11208513 Process for producing polyethylene polymers Corrine L. Brandl, William A. Lamberti, Charles R. Buhler, Judson Sidney Clements, Harry W. Deckman +1 more 2021-12-28 $269,399,000
11117980 Polymerization processes Ryan W. Impelman, Richard J. Stolz, David J. Sandell, Gerardo Corona 2021-09-14 $206,432,000
8433443 Method for on-line monitoring and control of polymerization processes and reactors to prevent discontinuity events Robert O. Hagerty, Ian D. Burdett, F. David Hussein, Eric J. Markel, Michael E. Muhle +2 more 2013-04-30
7507780 Polymerization process Robert O. Hagerty, Kevin B. Stavens, D. Brett Fischbuch, James M. Farley 2009-03-24
7300987 Polymerization process Robert O. Hagerty, Kevin B. Stavens, D. Brett Fischbuch, James M. Farley 2007-11-27
7122607 Polymerization process Robert O. Hagerty, Kevin B. Stavens, D. Brett Fischbuch, James M. Farley 2006-10-17
6660812 Production of olefin derivatives Keith H. Kuechler, Minquan Cheng, David Lumgair, Russell D. Sellen, Gary F. Janda 2003-12-09 $87,840,000
5462999 Process for polymerizing monomers in fluidized beds John R. Griffin, Michael E. Muhle 1995-10-31 $40,636,000
5436304 Process for polymerizing monomers in fluidized beds John R. Griffin 1995-07-25 $40,051,000
5405922 Process for polymerizing monomers in fluidized beds John R. Griffin, Michael E. Muhle 1995-04-11 $59,159,000
5371053 Process for deactivating Ziegler-Natta and metallocene catalysts Agapios K. Agapiou, Steve K. Ackerman, David M. LaBorde 1994-12-06 $60,137,000
5352749 Process for polymerizing monomers in fluidized beds John R. Griffin 1994-10-04 $87,866,000