Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11885535 | ETXV direct discharge injection compressor | Steven J. Koester, Brad Crenshaw | 2024-01-30 |
| 11384759 | Vapor injection double reed valve plate | Kanwal Bhatia, Kyung Jae Lee, Steven J. Koester, Jeong Ki Seo | 2022-07-12 |