Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5072717 | Hot water priming device | Doerte Laing, Karsten Laing | 1991-12-17 |
| 4917142 | Secondary circulation unit | Nikolaus Laing | 1990-04-17 |
| 4874300 | Ceramic step bearing in a centrifugal pump | Karsten Laing, Johannes Nikoleus Laing | 1989-10-17 |
| 4516721 | Pressureless large-area heating system | Karsten Laing, Oliver Laing | 1985-05-14 |
| 4471835 | Heat transfer pump | Karsten Laing, Oliver Laing | 1984-09-18 |
| 4437484 | Utility water system with a pressureless storage container, particularly for solar installations | Karsten Laing, Oliver Laing, Nikolaus Laing | 1984-03-20 |
| 4211092 | Space heating installation | Nikolaus Laing, Oliver Laing, Karsten Laing | 1980-07-08 |