Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9010496 | Method to increase the head rope life for single conveyance friction mine hoists for deep shafts | Sigurd Grimestad | 2015-04-21 |
| 8900382 | Hot worked steel and tool made therewith | Odd Sandberg | 2014-12-02 |
| 7527983 | Ferromagnetic material | Parmanand Sharma, Kudumboor Venkat Rao, Rajeev Ahuja | 2009-05-05 |
| 6155965 | Treatment of fly ash | Sven Santen | 2000-12-05 |
| 4936911 | Cold work steel | William C. Roberts | 1990-06-26 |
| D304539 | Barbecue spit | — | 1989-11-14 |
| 4863515 | Tool steel | William C. Roberts | 1989-09-05 |
| 4687513 | Condensation of zinc vapor | Sven Santen | 1987-08-18 |
| 4554860 | Pressure damper for recoilless weapons | Torbjorn Pramskog, Jan Sandberg | 1985-11-26 |
| 4548621 | Condensing zinc vapor | Sune Eriksson, Sven Santen | 1985-10-22 |
| 4548122 | Mortar carriage | Borje Hansson, Torbjorn Pramskog | 1985-10-22 |
| 4466807 | Manufacture of a gas containing monoxide and hydrogen gas from a starting material containing carbon and/or hydrocarbon | Sven Santen | 1984-08-21 |
| 4455165 | Increasing blast temperature | Sven Santen | 1984-06-19 |
| 4362555 | Method and apparatus for manufacturing sponge iron | Sven Santen | 1982-12-07 |
| 4359087 | Plate heat exchanger | — | 1982-11-16 |