Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7164851 | Modular tankless water heater control circuitry and method of operation | William R. Sturm, Joseph M. Sullivan, Kevin Hay, Gregg C. Johnson | 2007-01-16 |
| 7088915 | Modular tankless water heater | William R. Sturm, Joseph M. Sullivan, Kevin Hay, Gregg C. Johnson | 2006-08-08 |
| 7046922 | Modular tankless water heater | William R. Sturm, Joseph M. Sullivan, Kevin Hay, Gregg C. Johnson | 2006-05-16 |