Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4486647 | Method of welding aluminum to titanium and a welded joint so produced | Mikko Rantanen, Olavi Rintanen, Reijo Pajunen, Pekka Oittinen, Kalevi Valtanen | 1984-12-04 |
| 4264426 | Electrolytic cell and a method for manufacturing the same | Vaino O. Rintanen | 1981-04-28 |