Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7317809 | Arrangement in acoustic headsets | — | 2008-01-08 |
| 6965681 | Arrangement in acoustic headsets | — | 2005-11-15 |
| D481839 | Part of a back pack blower | Gustav Döragrip, Andreas Hedlund, Evalena Sandberg, Anders Jakobsson | 2003-11-04 |
| D481497 | Back pack blower | Lars Malmqvist, Anna Sjögren, Lotta Norinder, Tommy Krevi, Ola Holmgren +4 more | 2003-10-28 |
| D411200 | Ear protection with radio | — | 1999-06-22 |
| D410008 | Control panel with buttons | — | 1999-05-18 |
| 4678030 | Plate heat exchanger | — | 1987-07-07 |
| 4646821 | Plate elements and gaskets at plate heat exchangers or plate filters | Lars Lindahl | 1987-03-03 |
| 4635714 | Packing groove in plate member of plate heat exchanger | Bengt Carlsson, Lars Lindahl | 1987-01-13 |
| 4434643 | Method and a device for embossing heat exchanger plates | Lars Lindahl | 1984-03-06 |
| 4284135 | Device for mutually fixing plate elements of plate heat exchangers or plate filters | Lars Lindahl | 1981-08-18 |