Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12146501 | Step seal for refrigerant compressors | Jin Yan, Lin Sun, Ruiguo Gao, Brenden Richman | 2024-11-19 |
| 11692557 | Step seal for refrigerant compressors | Jin Yan, Lin Sun, Ruiguo Gao, Brenden Richman | 2023-07-04 |