Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6302983 | Method for lining underground pipelines | Lennart Agren, Alan J. Dickinson, Veli-Pekka Jormakka, Bo Mollsjo, Harri Leo +1 more | 2001-10-16 |
| 5469891 | Method for relining underground pipelines | Lennart Agren | 1995-11-28 |
| 4611432 | Window, especially for installation in an inclined roof | Egon Nowakowski, Elgard Nielsen, Per G. Nielsen | 1986-09-16 |