Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6302983 | Method for lining underground pipelines | Arne Lund, Alan J. Dickinson, Veli-Pekka Jormakka, Bo Mollsjo, Harri Leo +1 more | 2001-10-16 |
| 5469891 | Method for relining underground pipelines | Arne Lund | 1995-11-28 |
| 5148837 | Pipe for relining underground pipelines | Eino Holso | 1992-09-22 |
| 5139730 | Method and apparatus for manufacturing ribbed pipe | Paul Holso, Eino Holso, Jyri Jarvenkyla, Dieter Scharwachter | 1992-08-18 |
| 4929409 | Method in manufacturing a heat insulated tube and a device in extruders for manufacturing the tube | Eino Holso | 1990-05-29 |