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USPTO Patent Rankings Data through Sept 30, 2025
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John R. Porter — 4 Patents in 2018

ExxonMobil: 4 patents #71 of 909Top 8%
Friendswood, TX: #3 of 53 inventorsTop 6%
Texas: #1,088 of 15,368 inventorsTop 8%
Overall (2018): #42,447 of 503,207Top 9%
4 Patents 2018

Issued Patents 2018

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10059643 Process and apparatus for the production of para-xylene Timothy P. Bender, Dana L. Pilliod 2018-08-28
9896398 Xylene separation process and apparatus Timothy P. Bender, Dana L. Pilliod 2018-02-20
9890336 Method and apparatus for the purification of a hydrocarbon-containing stream John J. Monson, Thomas J. Waddick, Albert F. Seibert 2018-02-13
9878968 Xylene separation process Michael W. Weber, Gaurav Agrawal 2018-01-30