Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12371423 | Preparation of sufentanil citrate and sufentanil base | George Helmut Klemm, Brian Orr | 2025-07-29 |
| 10927068 | Process for preparing acylated amphetamine derivatives | Brian Orr, Kevin R. Roesch | 2021-02-23 |
| 10899749 | Preparation of sufentanil citrate and sufentanil base | George Helmut Klemm, Brian Orr | 2021-01-26 |
| 10227335 | Preparation of sufentanil citrate and sufentanil base | George Helmut Klemm, Brian Orr | 2019-03-12 |