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

James A. Johnson — 35 Patents

UOUop: 31 patents #83 of 1,854Top 5%
MIMacdermid, Incorporated: 2 patents #27 of 99Top 30%
PHPhyton Holdings: 1 patents #25 of 49Top 55%
PIPpg Industries: 1 patents #662 of 1,216Top 55%
Clarendon Hills, IL: #3 of 183 inventorsTop 2%
Illinois: #1,572 of 84,256 inventorsTop 2%
Overall (All Time): #96,288 of 4,157,543Top 3%
35 Patents All Time
James A. Johnson has been granted 35 US patents while listed as an inventor at Uop. The first was granted in 1987 and the most recent in March 2020. James A. Johnson ranks #96,288 of 4,157,543 US inventors in our database (top 2.3%). Patent records list James A. Johnson in Clarendon Hills, IL, US.

Issued Patents All Time

Showing 1–25 of 35 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10577293 Process and apparatus for improved para-xylene yield in an aromatic complex Ashish Suresh Bambal, Anton N. Mlinar 2020-03-03
9365469 Process for transalkylating aromatic hydrocarbons David S. Lafyatis, Edwin P. Boldingh, Eric J. Baker, Robert B. Larson 2016-06-14
9309170 Aromatics isomerization using a dual-catalyst system Paula L. Bogdan, Gregory J. Gajda, Patrick C. Whitchurch, Stanley J. Frey, Wolfgang A. Spieker 2016-04-12
9193921 Hydrocracking process for a hydrocarbon stream Stanley J. Frey, Paul T. Barger, Maureen L. Bricker, John Q. Chen, Peter K. Coughlin +4 more 2015-11-24
9193644 Process for selectively dealkylating aromatic compounds Stanley J. Frey, Paul T. Barger, Maureen L. Bricker, John Q. Chen, Peter K. Coughlin +4 more 2015-11-24
9162952 Process for purifying products from coal tar Deng-Yang Jan, Robert L. Bedard, John Q. Chen, Peter K. Coughlin, Jayant K. Gorawara +3 more 2015-10-20
9162943 Method of converting a coal to chemicals John Q. Chen, Peter K. Coughlin, Stanley J. Frey, Vasant P. Thakkar 2015-10-20
9079816 Process for producing alkylated aromatic compounds Paul T. Barger, Maureen L. Bricker, John Q. Chen, Peter K. Coughlin, Stanley J. Frey +3 more 2015-07-14
9073805 Hydrocracking process for a hydrocarbon stream Stanley J. Frey, Paul T. Barger, Maureen L. Bricker, John Q. Chen, Peter K. Coughlin +4 more 2015-07-07
9067853 Process for selectively dealkylating aromatic compounds Stanley J. Frey, Paul T. Barger, Maureen L. Bricker, John Q. Chen, Peter K. Coughlin +4 more 2015-06-30
9061953 Process for converting polycyclic aromatic compounds to monocyclic aromatic compounds John Q. Chen, Peter K. Coughlin, Stanley J. Frey, Vasant P. Thakkar 2015-06-23
9061955 Method of converting a coal to chemicals John Q. Chen, Peter K. Coughlin, Stanley J. Frey, Vasant P. Thakkar 2015-06-23
8754278 Aromatic alkylation catalyst Deng-Yang Jan, Robert J. Schmidt, Mathias P. Koljack 2014-06-17
8703982 Purification of taxanes Brian A. Bucher, Edward M. Desimone, III, Roland R. Franke, Rex T. Gallagher, Barry J. Hand +5 more 2014-04-22
8609925 Adsorbents with improved mass transfer properties and their use in the adsorptive separation of para-xylene Linda S. Cheng 2013-12-17
8546631 Methods for removing unsaturated aliphatic hydrocarbons from a hydrocarbon stream using activated carbon Deng-Yang Jan, Michael A. Schultz 2013-10-01
8546630 Methods for removing unsaturated aliphatic hydrocarbons from a hydrocarbon stream using clay Deng-Yang Jan, Michael A. Schultz 2013-10-01
8546632 Methods for removing unsaturated aliphatic hydrocarbons from a hydrocarbon stream using an acidic molecular sieve Deng-Yang Jan, Michael A. Schultz 2013-10-01
8518847 Aromatic alkylation catalyst Deng-Yang Jan, Robert J. Schmidt, Mathias P. Koljack 2013-08-27
8350111 Method for producing cumene Deng-Yang Jan, Christopher Lepine Standing, Margo W. Steward, Mathias P. Koljack 2013-01-08
8173852 Methods and apparatuses for producing styrene from ethylbenzene Wugeng Liang 2012-05-08
7888537 Solid acid catalyst and process for decomposition of cumene hydroperoxide Robert J. Schmidt, Deng-Yang Jan, Raelynn M. Miller 2011-02-15
7652181 Alkylation reactor design with effluent recycle and impure benzene regeneration Robert J. Schmidt, Michael R. Smith, Elena Z. Maurukas, Laurence O. Stine 2010-01-26
7622622 Process for the high yield production of monoalkylaromatics Guy B. Woodle, Robert J. Schmidt, Deng-Yang Jan, Elena Z. Maurukas, Raelynn M. Miller 2009-11-24
7495137 Two-stage aromatics isomerization process Lubo Zhou, Gregory F. Maher, John E. Bauer 2009-02-24