Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
GK

Gregory J. Karahalis

EXExxonMobil: 3 patents #66 of 843Top 8%
Houston, TX: #229 of 2,552 inventorsTop 9%
Texas: #1,731 of 16,780 inventorsTop 15%
Overall (2021): #82,426 of 548,734Top 20%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11001657 Unbridged indacenyl metallocenes Jian Yang 2021-05-11
10889663 Asymmetric ANSA-metallocene catalyst compounds for producing polyolefins having a broad molecular weight distribution Jian Yang, John R. Hagadorn, Timothy M. Boller, Evan J. Morris, Yan Jiang +1 more 2021-01-12
10882925 Catalysts that produce polyethylene with broad, bimodal molecular weight distribution Jian Yang, John R. Hagadorn, Timothy M. Boller, Evan J. Morris, Patrick Brant 2021-01-05