| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 3 | |
| #2 | Australia | 2 | |
| #3 | Brazil | 2 | |
| #4 | China | 2 | |
| #5 | German Democratic Republic | 2 | |
| #6 | Denmark | 2 | |
| #7 | EPO (European Patent Office) | 2 | |
| #8 | Spain | 2 | |
| #9 | Finland | 2 | |
| #10 | Greece | 2 | |
| #11 | Hungary | 2 | |
| #12 | Israel | 2 | |
| #13 | Norway | 2 | |
| #14 | New Zealand | 2 | |
| #15 | Portugal | 2 | |
| #16 | Sweden | 2 | |
| #17 | WIPO (World Intellectual Property Organization) | 2 | |
| #18 | African Intellectual Property Organization | 1 | |
| #19 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Gas-flow silencers for machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Malmsten Sven-Olof | 32 |
| #2 | Sven-Olof Malmsten | 3 |
| #3 | Malmsten S-O | 2 |
| #4 | Malmsten Sven-Polof | 1 |
| Publication | Filing date | Title |
|---|---|---|
| BR8907489A | Exhaust silent and process for its manufacturing | |
| IL90417D0 | Exhaust silencer |