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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David E. Mackowiak — 16 Patents

UOUop: 16 patents #187 of 1,854Top 15%
Des Plaines, IL: #50 of 807 inventorsTop 7%
Illinois: #5,176 of 84,256 inventorsTop 7%
Overall (All Time): #284,196 of 4,157,543Top 7%
16 Patents All Time
David E. Mackowiak has been granted 16 US patents while listed as an inventor at Uop. The first was granted in 1981 and the most recent in May 2023. David E. Mackowiak ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list David E. Mackowiak in Des Plaines, IL, US.

Patents per Year

Patents granted per year, 1981 to 2023Bar chart with a peak of 4 patents in 2013.peak 41981: 1 patents19811982: 1 patents19821986: 1 patents19861988: 1 patents19882008: 1 patents20082011: 3 patents20112013: 4 patents20132014: 2 patents20142015: 1 patents20152023: 1 patents2023

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
11639322 Sulfuric acid catalyzed alkylation process Christopher P. Nicholas, Susie C. Martins, Hayim Abrevaya, Joel T. Walenga 2023-05-02
9174892 Process for increasing a mole ratio of methyl to phenyl Antoine Negiz, Edwin P. Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske +1 more 2015-11-03
8748681 Process for oligomerizing dilute ethylene Christopher P. Nicholas, Alakananda Bhattacharyya 2014-06-10
8748682 Process for oligomerizing dilute ethylene Christopher P. Nicholas, Alakananda Bhattacharyya 2014-06-10
8609917 Process for increasing methyl to phenyl mole ratios and reducing benzene content in a motor fuel product Antoine Negiz, Edwin P. Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske +1 more 2013-12-17
8598395 Process for increasing a mole ratio of methyl to phenyl Antoine Negiz, Edwin P. Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske +1 more 2013-12-03
8575410 Process for oligomerizing dilute ethylene Christopher P. Nicholas, Alakananda Bhattacharyya 2013-11-05
8563795 Aromatic aklylating agent and an aromatic production apparatus Antoine Negiz, Edwin P. Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske +1 more 2013-10-22
8021620 Apparatus for oligomerizing dilute ethylene Christopher P. Nicholas, Alakananda Bhattacharyya 2011-09-20
8013195 Enhancing conversion of lignocellulosic biomass Michael J. McCall, Robert J. Allen 2011-09-06
7960520 Conversion of lignocellulosic biomass to chemicals and fuels Michael J. McCall, Robert J. Allen 2011-06-14
7393993 Method for removal of acetylenes from hydrocarbon streams Vladislav I. Kanazirev 2008-07-01
4717779 Dehydrogenation of dehydrogenatable hydrocarbons Jeffery C. Bricker, Tamotsu Imai 1988-01-05
4565898 Dehydrogenation of dehydrogenatable hydrocarbons Mark J. O'Hara, Tamotsu Imai, Jeffery C. Bricker 1986-01-21
4329521 Oxo alcohol synthesis with rhodium catalyst recycle Edwin H. Homeier, Tamotsu Imai, Catherine E. Guzolek 1982-05-11
4275252 Oxo alcohol synthesis with rhodium catalyst recycle Tamotsu Imai, Edwin H. Homeier 1981-06-23