| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 6 | |
| #2 | Austria | 3 | |
| #3 | Canada | 2 | |
| #4 | Germany | 2 | |
| #5 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Ammonia or cyanogen |
| # | Name | Total Patents |
|---|---|---|
| #1 | Products Co Nitrogen | 6 |
| #2 | Arnold Edward E | 1 |
| #3 | Hidden Charles P | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA214679A | Furnace for nitrogen fixation | |
| CA201075A | System for recovering cyanides |