| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | Germany | 2 | |
| #3 | Japan | 2 | |
| #4 | United States | 2 | |
| #5 | Canada | 1 | |
| #6 | Italy | 1 | |
| #7 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Gas-flow silencers for machines | |
| #2 | Separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Malmsten Sven O | 3 |
| #2 | Malmsten Sven Olof | 3 |
| #3 | Suben Orofu Marumusuten | 2 |
| #4 | Malmsten Sven Olov | 2 |
| Publication | Filing date | Title |
|---|---|---|
| WO8604954A1 | A sound absorptive exhaust-gas conduit and a method for its manufacture | |
| JPS5658512A | Air cleaner | |
| JPS5529087A | Exhaust gas silencer | |
| US4286689A | Exhaust gas muffler | |
| CA1091598A | Air cleaner | |
| US4236903A | Air cleaner | |
| DE2533384A1 | Air cleaner - e.g. for air exhausted from milking machines and contaminated with lubricating oil from vacuum pump |