| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Finland | 8 | |
| #2 | Germany | 3 | |
| #3 | Denmark | 2 | |
| #4 | Sweden | 2 | |
| #5 | Austria | 1 | |
| #6 | Australia | 1 | |
| #7 | Switzerland | 1 | |
| #8 | Ireland | 1 | |
| #9 | India | 1 | |
| #10 | Japan | 1 | |
| #11 | Netherlands | 1 | |
| #12 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Pipes | |
| #4 | Pipe-line systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lehtinen Uuno Johannes | 15 |
| #2 | Lehtinen U J | 3 |
| #3 | Lehtinen Kari | 1 |
| #4 | Uuno Yohanesu Reeteinen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FI803424L | Roersil | |
| DE2909936A1 | Elastic tube for use in food industry - with telescopic joint between inner and outer tube sealed by O=ring | |
| NL7610281A | Multiport rotary shut=off valve - has closure disc seated on curved resilient element with adjustable tension to vary seating pressure | |
| CH612488A5 | Shut-off valve | |
| AU1771976A | Shutoff valve having adjustable closure member force | |
| FI752509A | Kontrollglas | |
| FI752302A | Valve foersedd med ett vridbart avstaengningsorgan | |
| FI751017A | Valve foersedd med ett vridbart avstaengningsorgan | |
| FI750610A | VENTILSTYRAPPARAT Foer EN BAKSLAGSVENTIL |