Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7789318 | Wall mounted domestic combined heat and power appliance | David Anthony Tokell, John Antony Stephenson, David Anthony Clark | 2010-09-07 |
| 7013640 | Stirling engine assembly | Julie Patricia Hyde, David Anthony Clark | 2006-03-21 |
| 6983593 | Stirling engine assembly | David Anthony Clark, Julie Patricia Hyde, David Michael Jennaway | 2006-01-10 |