| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 8 | |
| #2 | France | 4 | |
| #3 | Germany | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Organic fine chemistry |
| # | Technology | |
|---|---|---|
| #1 | Non-metallic elements | |
| #2 | Compounds containing metals | |
| #3 | Special acyclic compounds |
| Publication | Filing date | Title |
|---|---|---|
| DE321700C | Process for the preparation of mercury compounds of oxybenzenesulfocarboxylic acids and their homologues, which are colloidally soluble in water | |
| GB190908421A | An Improvement in the Manufacture of Ortho-sulphamidobenzoic Acid. |