Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11358229 | Drill with grooved flute and method of making drill with grooved flute | Christian Ahlstrom, Michael Svensson | 2022-06-14 |
| 7887673 | Paper machine and method for manufacturing paper | Ingmar Andersson, Sören Sven Eriksson, Dennis Edward Jewitt, Ingvar Berndt Erik Klerelid, Anders Linden | 2011-02-15 |
| 6427800 | Ear plug and method of manufacturing an ear plug | Per Hiselius | 2002-08-06 |
| 5970160 | Earmuff | Per Hiselius | 1999-10-19 |