Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |