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

Sylvain Hantzer — 30 Patents

ExxonMobil: 28 patents #322 of 10,161Top 4%
PEPechiney Electrometallurgie: 1 patents #16 of 32Top 50%
IBM: 1 patents #44,878 of 70,183Top 65%
Spring, TX: #79 of 2,039 inventorsTop 4%
Texas: #3,931 of 125,132 inventorsTop 4%
Overall (All Time): #121,623 of 4,157,543Top 3%
30 Patents All Time
Sylvain Hantzer has been granted 30 US patents while listed as an inventor at ExxonMobil. The first was granted in 1990 and the most recent in July 2018. Sylvain Hantzer ranks #121,623 of 4,157,543 US inventors in our database (top 2.9%). Patent records list Sylvain Hantzer in Spring, TX, US.

Patents per Year

Patents granted per year, 1990 to 2018Bar chart with a peak of 3 patents in 1999.peak 31990: 1 patents19901998: 2 patents1999: 3 patents19992000: 1 patents2001: 3 patents20012002: 1 patents2003: 1 patents20032004: 1 patents2005: 1 patents20052006: 3 patents2007: 2 patents20072008: 2 patents2009: 3 patents20092010: 2 patents2012: 1 patents20122013: 2 patents2018: 1 patents2018

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10016747 Base stock production using a high activity catalyst Lei Zhang, Wenyih F. Lai, Stephen J. McCarthy, Tracie L. Owens 2018-07-10 $79,817,000
8545694 Aromatics saturation process for lube oil boiling range feedstreams Stephen J. McCarthy, Wenyih F. Lai, Ian A. Cody 2013-10-01 $96,122,000
8366908 Sour service hydroprocessing for lubricant base oil production Krista Marie Prentice, Gary P. Schleicher, Lei Zhang, Timothy L. Hilbert, Michel Daage +7 more 2013-02-05 $138,582,000
8163171 Ultra pure fluids Thomas A. Gribschaw, Stephen J. McCarthy, Steven E. Silverberg, Vijay Swarup 2012-04-24 $87,985,000
7686949 Hydrotreating process for lube oil boiling range feedstreams Stephen J. McCarthy, Jean W. Beeckman, Geoffrey L. Woolery, Glenn R. Sweeten 2010-03-30 $132,368,000
7682502 Process to hydrogenate aromatics present in lube oil boiling range feedstreams Stephen J. McCarthy, Wenylh F. Lai, Jean W. Beeckman 2010-03-23 $128,754,000
7597795 Process for making lube oil basestocks Gary P. Schleicher, Kenneth L. Riley, Elizabeth L. Stavens 2009-10-06 $360,694,000
7594991 All catalytic medicinal white oil production Eric D. Joseck, Timothy L. Hilbert, Evelino A. Ruibal, Jean-Philippe L. Andre, Thomas R. Palmer +1 more 2009-09-29 $323,855,000
7538065 Noble metal-containing catalyst containing a specific ratio of silica to aluminum in the framework Stephen J. McCarthy, Wenyih F. Lai, Ian A. Cody 2009-05-26 $7,976,000
7429318 Process for preparing basestocks having high VI using oxygenated dewaxing catalyst Ian A. Cody, William J. Murphy, David W. Larkin, John E. Gallagher, Jeenok T. Kim 2008-09-30 $430,412,000
7407909 Ex-situ reduction and dry passivation of noble metal catalysts Stephen J. McCarthy, Jean W. Beeckman, William G. Borghard 2008-08-05 $309,947,000
7282137 Process for preparing basestocks having high VI Ian A. Cody, William J. Murphy, David W. Larkin, John E. Gallagher, Jeenok T. Kim 2007-10-16 $391,044,000
7220350 Wax isomerate yield enhancement by oxygenate pretreatment of catalyst Ian A. Cody, William J. Murphy 2007-05-22 $200,635,000
7125818 Catalyst for wax isomerate yield enhancement by oxygenate pretreatment Ian A. Cody, William J. Murphy 2006-10-24 $410,891,000
7087152 Wax isomerate yield enhancement by oxygenate pretreatment of feed Ian A. Cody, William J. Murphy 2006-08-08 $815,059,000
7077947 Process for preparing basestocks having high VI using oxygenated dewaxing catalyst Ian A. Cody, William J. Murphy, David W. Larkin, John E. Gallagher, Jeenok T. Kim 2006-07-18 $728,571,000
6974535 Hydroconversion process for making lubricating oil basestockes Ian A. Cody, William J. Murphy, John E. Gallagher, Joseph P. Boyle, Anne M. Zinicola +3 more 2005-12-13 $546,835,000
6723229 Process for the production of medicinal white oil using M41S and sulfur sorbent Jean W. Beeckman, Stephen J. McCarthy, Arthur P. Werner 2004-04-20 $212,535,000
6592748 Reffinate hydroconversion process Ian A. Cody, William J. Murphy, John E. Gallagher, Joseph P. Boyle, Anne M. Zinicola +3 more 2003-07-15 $420,474,000
6475374 Production of lubricating oils by a combination catalyst system Daniel P. Leta, Stuart L. Soled, Gary B. McVicker 2002-11-05 $166,316,000
6245221 Desulfurization process for refractory organosulfur heterocycles William C. Baird, Jr., Gary B. McVicker, James J. Schorfheide, Darryl P. Klein, Michel Daage +4 more 2001-06-12 $261,619,000
6221240 Desulfurization and aromatic saturation of feedstreams containing refractory organosulfur heterocycles and aromatics Darryl P. Klein, Michele S. Touvelle, Edward S. Ellis, Carl W. Hudson, Jingguang Chen +5 more 2001-04-24 $879,755,000
6187176 Process for the production of medicinal white oil Alberto Ravella, Ian A. Cody, Darryl P. Klein 2001-02-13 $400,833,000
6103106 Desulfurization and ring opening of petroleum streams Gary B. McVicker, James J. Schorfheide, William C. Baird Jr., Michele S. Touvelle, Michel Daage +4 more 2000-08-15 $285,513,000
5935420 Desulfurization process for refractory organosulfur heterocycles William C. Baird, Jr., Gary B. McVicker, James J. Schorfheide, Darryl P. Klein, Michel Daage +4 more 1999-08-10 $165,064,000