Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648595 | Pump with selectable suction ports | — | 2003-11-18 |
| 6622930 | Freeze protection for hot water systems | Johannes Nikolaus Laing | 2003-09-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648595 | Pump with selectable suction ports | — | 2003-11-18 |
| 6622930 | Freeze protection for hot water systems | Johannes Nikolaus Laing | 2003-09-23 |