Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7354559 | Crystallization apparatus and method for the formation of crystals in a such apparatus | Jarmo Louhelainen | 2008-04-08 |
| 5030032 | Apparatus for producing water seal in protective tube of the submersed pump of gas cistern | Risto Penttinen | 1991-07-09 |
| 4827992 | Method for conducting a fluid into a rock cistern | Risto Penttinen | 1989-05-09 |