Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9581167 | Turbo-compressor-condenser-expander | Andrew S. Geffken, Ian E. Graves | 2017-02-28 |
| 9134072 | Geometry of heat exchanger with high efficiency | Ian E. Graves | 2015-09-15 |
| 8578733 | Turbo-compressor-condenser-expander | Andrew S. Geffken, Ian E. Graves | 2013-11-12 |