| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 11 | |
| #2 | Canada | 5 | |
| #3 | Austria | 3 | |
| #4 | Spain | 3 | |
| #5 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Surface technology and coating | |
| #2 | Environmental technology | |
| #3 | Optics | |
| #4 | Measurement | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Electrolytic processes | |
| #2 | Reduction of greenhouse gas emissions | |
| #3 | Cameras | |
| #4 | Measuring distances | |
| #5 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pechkranz Rodolphe | 12 |
| #2 | Rodolphe Pechkranz | 8 |
| Publication | Filing date | Title |
|---|---|---|
| CA282814A | Packing for electrolytic apparatus | |
| CA219504A | Electrolyser | |
| CA226192A | Electrolysis of water | |
| CA300727A | Element of filter press electrolysers | |
| CA296332A | Electrolyser electrode of the filter press type |