Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620667 | Hot water heating system having minimum hot water use based on minimum water temperatures and time of heating | Tom R. Vandermeyden, Oscar Dufau | 1986-11-04 |
| 4522333 | Scheduled hot water heating based on automatically periodically adjusted historical data | John Michael Gross, Tom R. Vandermeyden | 1985-06-11 |
| 4449178 | Method and apparatus for controlled off peak load hot water heating | John Michael Gross | 1984-05-15 |