Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9447992 | Geothermal system with earth grounding component | Kelly C. Johnson | 2016-09-20 |
| 9241426 | Air-based geothermal cooling system for a telecom utility cabinet | Shanjiu Chi, Amit Kulkarni, Liqian Zhai, Kelly C. Johnson, Yong Lu +1 more | 2016-01-19 |