| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Finland | 6 | |
| #2 | Norway | 4 | |
| #3 | Sweden | 4 | |
| #4 | Denmark | 3 | |
| #5 | Poland | 2 | |
| #6 | United Kingdom | 1 | |
| #7 | USSR (Union of Socialist Soviet Republics) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Containers for goods storage | |
| #3 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ruohonen L | 7 |
| #2 | Ruohonen Leo | 6 |
| #3 | Winqvist Olavi | 6 |
| #4 | Ruohonen Leo Martti Johannes | 6 |
| #5 | Winquist Olavi Nestor | 5 |
| #6 | Winqvist O | 5 |
| #7 | Windqvist O | 2 |
| #8 | Winqvist Olavi Nestori | 1 |
| #9 | Ruokhonen Leo | 1 |
| #10 | Vinkvist Olivi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DK203480A | Underground dent system for liquid fuel or similar liquids and valve to same | |
| FI791870A | Med nyckelraeknarautomat foersedd braensledistributionsanordning | |
| FI791522A | Ventil | |
| FI791523A | Underjordisk tankanlaeggning foer flytande braensle eller liknande | |
| FI791524A | Roernaet foer underjordisk oljecistern eller liknande | |
| FI791525A | Adapter foer plastslang | |
| FI783465A | Transportable braensletankanlaeggning |