Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8919691 | Life-saving vehicle | Jan-Evert Lindmark | 2014-12-30 |
| 6408763 | Apparatus for land, sea, and air defense | Tero Hurtta, Tarmo Eino Tapani Niinivaara | 2002-06-25 |
| 6408944 | Apparatus and method to shut down a pipeline | Tarmo Eino Tapani Niinivaara, Tero Hurtta | 2002-06-25 |
| 6216724 | Safety valve | — | 2001-04-17 |
| 5206640 | Surveillance system | Esko Hirvonen | 1993-04-27 |
| 4835355 | Method, apparatus and element for accomplishing an underwater weld joint | Hannu Makelainen | 1989-05-30 |
| 4780944 | Method and tool for the freeing of parts held fast together | Hannu Makelainen | 1988-11-01 |
| 4393297 | Method for the arc cutting of metal | — | 1983-07-12 |
| 4319116 | Welding using soap shielding | Markku Kauppi, Markku Nurminen, by Marjatta Nurminen, administrator | 1982-03-09 |