| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 3 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | United States | 3 | |
| #5 | Austria | 1 | |
| #6 | Canada | 1 | |
| #7 | Germany | 1 | |
| #8 | Finland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Surface technology and coating | |
| #2 | Materials and metallurgy | |
| #3 | Textiles and paper | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Electrolytic processes | |
| #2 | Non-metallic elements | |
| #3 | Sewing | |
| #4 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Konrad Langhard Johann | 3 |
| #2 | S Fredriksstad Elektrokemiske | 1 |
| #3 | Langhard J K | 1 |
| #4 | Langhard Johann Konrad | 1 |
| #5 | Fabriker A S Fredriksstad Elek | 1 |
| #6 | Fef Fredriksstad Elektrokemisk | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB166396A | Process for the manufacture of perboartes by electrolysis | |
| US1375596A | Manufacture of perborates | |
| US1379453A | Apparatus for the electrolysis of solutions of metal salts | |
| GB139753A | Improvements in the manufacture of sodium perborate | |
| GB138862A | Apparatus for the electrolysis of metal salt solutions | |
| DE330810C | Device for the electrolysis of metal salt solutions | |
| CA211913A | Manufacture of perborats |