Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6601579 | Indoor-outdoor fireplace | Jane Catherine Fier, David Charles Lyons | 2003-08-05 |
| 6550687 | Heat exchange system | David Charles Lyons, Richard Berg | 2003-04-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6601579 | Indoor-outdoor fireplace | Jane Catherine Fier, David Charles Lyons | 2003-08-05 |
| 6550687 | Heat exchange system | David Charles Lyons, Richard Berg | 2003-04-22 |