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USPTO Patent Rankings Data through Dec 31, 2025
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Main Chang — 3 Patents in 2017

WCW.R. Grace & Co.-Conn.: 3 patents #1 of 25Top 4%
Houston, TX: #181 of 2,453 inventorsTop 8%
Texas: #1,514 of 15,389 inventorsTop 10%
Overall (2017): #68,858 of 506,227Top 15%
3 Patents 2017

Issued Patents 2017

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9738736 Combined internal donor system for Ziegler-Natta polyolefin catalysts and methods of making and using same Vladimir Marin, Ahmed Hintolay, Neil J. O'Reilly, Binh T. Nguyen 2017-08-22
9567410 Internal donor structure for olefin polymerization catalysts and methods of making and using same 2017-02-14
9562119 Ethylene polymerization catalysts Thomas Garoff 2017-02-07