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USPTO Patent Rankings Data through Sept 30, 2025
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Wayne C. Widdison — 3 Patents in 2021

IMImmunogen: 3 patents #4 of 30Top 15%
Belmont, MA: #31 of 237 inventorsTop 15%
Massachusetts: #1,400 of 14,123 inventorsTop 10%
Overall (2021): #58,503 of 548,734Top 15%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11135308 Maytansinoid derivatives with self-immolative peptide linkers and conjugates thereof 2021-10-05
11046762 Cross-linkers and their uses Ravi V. J. Chari, Robert Yongxin Zhao, Yelena Kovtun, Rajeeva Singh 2021-06-29
10944190 Methods for the acylation of maytansinol Robert Yongxin Zhao 2021-03-09