| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | United Kingdom | 4 | |
| #3 | Canada | 3 | |
| #4 | Finland | 3 | |
| #5 | France | 3 | |
| #6 | Japan | 3 | |
| #7 | United States | 3 | |
| #8 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Servomotors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nelimarkka Juha A E | 7 |
| #2 | Nelimarkka Juha Antti Elia | 7 |
| #3 | Jiyuha Antei Eria Nerimarutsuk | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB1570449A | Ball valve | |
| GB1570251A | Ball valve | |
| GB1557513A | Ball valve | |
| DE2440698A1 | Sealing ring in P.T.F.E. for butterfly valve - with internal ring spring, suitable for high temperature | |
| GB1363609A | Hydraulic or pneumatic torque motor |