| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 3 | |
| #2 | United Kingdom | 3 | |
| #3 | Austria | 2 | |
| #4 | Spain | 2 | |
| #5 | Switzerland | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Ammonia or cyanogen |
| # | Name | Total Patents |
|---|---|---|
| #1 | Carlson Oscar Fredrik | 9 |
| #2 | Oscar Fredrik Carlson | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB190821590A | Improvements in or relating to the Production of Fertilizers. | |
| US903541A | Process of making nitrogen compounds. | |
| GB190615445A | Improvements in or relating to the Production of Nitrogen Compositions | |
| GB189710362A | Improvements in Explosives. |