| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 2 | |
| #2 | Argentina | 1 | |
| #3 | Australia | 1 | |
| #4 | Bulgaria | 1 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | China | 1 | |
| #8 | Czechia | 1 | |
| #9 | German Democratic Republic | 1 | |
| #10 | Algeria | 1 | |
| #11 | Egypt | 1 | |
| #12 | Finland | 1 | |
| #13 | Hungary | 1 | |
| #14 | Ireland | 1 | |
| #15 | India | 1 | |
| #16 | Iceland | 1 | |
| #17 | Japan | 1 | |
| #18 | Republic of Korea | 1 | |
| #19 | Lithuania | 1 | |
| #20 | Latvia | 1 | |
| #21 | Mexico | 1 | |
| #22 | Norway | 1 | |
| #23 | New Zealand | 1 | |
| #24 | African Intellectual Property Organization | 1 | |
| #25 | Poland | 1 | |
| #26 | Portugal | 1 | |
| #27 | Romania | 1 | |
| #28 | Russian Federation | 1 | |
| #29 | Singapore | 1 | |
| #30 | Tunisia | 1 | |
| #31 | United States | 1 | |
| #32 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Magnetic or electrostatic solid separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ilmasti Veikko | 27 |
| #2 | Veikko Ilmasti | 3 |
| #3 | Ilmasti V | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EG19040A | Procedure and apparatus for the purification of air, flue gases or equivalent | |
| CZ412290A3 | Air, chimney gas or other waste gas purification process and apparatus for making the same | |
| FI893998A0 | Reference foundation for length, roekgaser eller motsvarande |