| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 20 | |
| #2 | United States | 3 | |
| #3 | Germany | 1 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Organic fine chemistry | |
| #2 | Pharmaceuticals |
| # | Technology | |
|---|---|---|
| #1 | Acyclic or carbocyclic compounds | |
| #2 | Special acyclic compounds | |
| #3 | Heterocyclic compounds | |
| #4 | Sugars | |
| #5 | Medical preparations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Siegfried Aktiengesellschaft V | 20 |
| #2 | Albert Ursprung Rudolf | 1 |
| #3 | Heinrich Hirschmann | 1 |
| #4 | Andre Demolis | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE948504C | Process for the production of calcium oxymethylphosphinous | |
| US2653157A | p-amino-salicylic acid derivatives and their production | |
| US2386037A | Process for the preparation of the sodium salt of 4, 4'-diaminodiphenylsulphone-n-n'-iglucosesulphonic acid | |
| US2370903A | Products for pharmaceutical use and improvements in a method for preparing these products |