| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Finland | 3 | |
| #2 | Australia | 1 | |
| #3 | Brazil | 1 | |
| #4 | German Democratic Republic | 1 | |
| #5 | Denmark | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Spain | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Greece | 1 | |
| #10 | Hungary | 1 | |
| #11 | Netherlands | 1 | |
| #12 | Norway | 1 | |
| #13 | Portugal | 1 | |
| #14 | Sweden | 1 | |
| #15 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lehtinen Samuli | 15 |
| #2 | Lehtinen S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FI875551A0 | Oavbrutet psa- eller tryckomvaexlingsfoerfarande och -apparatur. | |
| GR870396B | Gas concentrating method and plant | |
| FI861189A0 | FOERSTAERKNINGSFOERFARANDE OCH -ANORDNING Foer GAS. | |
| FI860653A0 | Gas amplification method and apparatus |