| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Finland | 4 | |
| #2 | Canada | 2 | |
| #3 | United States | 2 | |
| #4 | Australia | 1 | |
| #5 | Brazil | 1 | |
| #6 | Germany | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | France | 1 | |
| #9 | Italy | 1 | |
| #10 | Japan | 1 | |
| #11 | Norway | 1 | |
| #12 | Sweden | 1 | |
| #13 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Measuring length, angles and areas | |
| #2 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Puumalainen Pertti | 15 |
| #2 | Perutei Puuumarainen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FI844785A0 | Method for measuring the properties of a cross profile of a continuous material web. | |
| FI844784A0 | Foerfarande foer maetning av tjockleken hos plastfilmens profil. | |
| FI844782A0 | Foerfarande foer stabilizering av kvadratviktsgivare. | |
| US4147931A | Procedure for measuring unit area weights | |
| DE2747638A1 | METHOD OF MEASURING AREA WEIGHTS |