Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6929465 | Timer circuit for valve activation in oil burner system | John P. Graham | 2005-08-16 |
| 6888390 | Timer circuit for valve activation in oil burner system | John P. Graham | 2005-05-03 |
| 6540265 | Fluid fitting | — | 2003-04-01 |
| 6382959 | Burner with air flow adjustment | John M. Laisy, Len Fisher | 2002-05-07 |
| 6244855 | Burner with air flow adjustment | John M. Laisy, Len Fisher | 2001-06-12 |