| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | Italy | 4 | |
| #3 | Spain | 3 | |
| #4 | Finland | 3 | |
| #5 | United Kingdom | 3 | |
| #6 | Netherlands | 3 | |
| #7 | Canada | 2 | |
| #8 | France | 2 | |
| #9 | Sweden | 2 | |
| #10 | United States | 2 | |
| #11 | Austria | 1 | |
| #12 | Belgium | 1 | |
| #13 | Denmark | 1 | |
| #14 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Machines | |
| #3 | Macromolecular chemistry and polymers | |
| #4 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Paper coating | |
| #2 | Compounding processes | |
| #3 | Compounding ingredients | |
| #4 | Making textile fabrics | |
| #5 | Manufacturing artificial filaments | |
| #6 | Chemical or physical processes | |
| #7 | Mixing | |
| #8 | Milling | |
| #9 | Rubber treatments | |
| #10 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wietsma Popke | 8 |
| #2 | Wietsma P | 4 |
| #3 | Weitsma P | 1 |
| #4 | Schoen | 1 |
| #5 | Kersten Peter Anton Johan Gera | 1 |
| #6 | Mueller-Rid | 1 |
| #7 | Schoeffmann | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2631340A1 | Process for the production of fiber fleece | |
| FR2256273A1 | Foam-impregnated non-woven fabrics compressed before curing - to give even distribution of foam through the material | |
| DE2428304A1 | METHOD OF MANUFACTURING A FOAMED LATEX IMPRAEGNATED FIBER FIBER LATEX AND ITS USE | |
| GB1398480A | Latex compositions | |
| NL170443B | Apparatus for the continuous manufacture of fibrous, flocculent binder particles. |