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USPTO Patent Rankings Data through Dec 31, 2025
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Michael A. Risch — 20 Patents

ExxonMobil: 20 patents #520 of 10,161Top 6%
Seabrook, TX: #18 of 291 inventorsTop 7%
Texas: #6,926 of 125,132 inventorsTop 6%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Michael A. Risch has been granted 20 US patents while listed as an inventor at ExxonMobil. The first was granted in 2004 and the most recent in December 2010. Michael A. Risch ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Michael A. Risch in Seabrook, TX, US.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7858714 Polymerization process Robert O. Hagerty, Chia S. Chee, Randall B. Laird, Pradeep P. Shirodkar, Peijun Jiang 2010-12-28 $80,003,000
7728084 Polymerization process Robert O. Hagerty, Chia S. Chee, Randall B. Laird, Pradeep P. Shirodkar, Zerong Lin +1 more 2010-06-01 $183,173,000
7700699 Polymerization process Robert O. Hagerty, Randall B. Laird, Pradeep P. Shirodkar, Peijun Jiang 2010-04-20 $181,087,000
7691956 Polymerization process Robert O. Hagerty, Chia S. Chee, Randall B. Laird, Pradeep P. Shirodkar, Zerong Lin +1 more 2010-04-06 $233,895,000
7550637 Catalyst and process for selective hydrogenation David M. Lowe, Michel Molinier, John Di-Yi Ou, Anthony F. Volpe, Jr., Jeffrey C. Yoder 2009-06-23 $476,040,000
7491776 Polymerization process Robert O. Hagerty, Chia S. Chee, Randall B. Laird, Pradeep P. Shirodkar, Zerong Lin +1 more 2009-02-17 $575,401,000
7462751 Catalyst and process for selective hydrogenation David M. Lowe, Michel Molinier, John Di-Yi Ou, Anthony F. Volpe, Jr., Jeffrey C. Yoder +1 more 2008-12-09 $1,528,651,000
7449530 Polymerization process Robert O. Hagerty, Randall B. Laird, Pradeep P. Shirodkar, Peijun Jiang 2008-11-11 $673,093,000
7423103 Low fouling and high activity polymerization process Kevin B. Stavens, Robert O. Hagerty, Randall B. Laird, Zerong Lin, Larry L. Iaccino 2008-09-09 $184,390,000
7326821 Removal of oxygenate from an olefin stream John Di-Yi Ou 2008-02-05 $321,779,000
7227047 Butadiene and isobutylene removal from olefinic streams John Di-Yi Ou, Cor F. Van Egmond 2007-06-05 $471,353,000
7220700 Catalyst and process for selective hydrogenation David M. Lowe, Michel Molinier, John Di-Yi Ou, Anthony F. Volpe, Jr., Jeffrey C. Yoder +1 more 2007-05-22 $200,635,000
7220701 Catalyst and process for selective hydrogenation David M. Lowe, Michel Molinier, John Di-Yi Ou, Anthony F. Volpe, Jr., Jeffrey C. Yoder 2007-05-22 $200,635,000
7199273 Selective hydrogenation of alkynes and/or diolefins Michel Molinier, John Di-Yi Ou 2007-04-03 $213,241,000
7153807 Catalysts for selective hydrogenation of alkynes and alkadienes Michel Molinier, John Di-Yi Ou 2006-12-26 $598,471,000
7145051 Combined oxydehydrogenation and cracking catalyst for production of olefins John Di-Yi Ou, Blake J. Aronson 2006-12-05 $400,688,000
7087794 Oxygenate conversion in the presence of highly unsaturated compounds John Di-Yi Ou 2006-08-08 $815,059,000
7038097 Dual bed process using two different catalysts for selective hydrogenation of acetylene and dienes Michel Molinier, John Di-Yi Ou, John S. Buchanan 2006-05-02 $299,169,000
6987208 Process for removing oxygenates from an olefinic stream Teng Xu, John Di-Yi Ou, Keith H. Kuechler, James H. Beech, Jr., James R. Lattner +1 more 2006-01-17 $863,933,000
6717025 Process for removing oxygenates from an olefinic stream Teng Xu, John Di-Yi Ou, Keith H. Kuechler, James H. Beech, Jr., James R. Lattner +1 more 2004-04-06 $130,655,000