| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 11 |
| # | Industry | |
|---|---|---|
| #1 | Organic fine chemistry | |
| #2 | Machines | |
| #3 | Pharmaceuticals | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Special acyclic compounds | |
| #2 | Unspecified technologies | |
| #3 | Heterocyclic compounds | |
| #4 | Medical preparations | |
| #5 | Household appliances |
| # | Name | Total Patents |
|---|---|---|
| #1 | H Dr Friedheim Ernst A | 9 |
| #2 | Ernst A H Dr Friedheim | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CH533621A | Antimalarial quinoline derivs - prepd by introducing an amino group into a quinoline by coupling with an aromatic diazotate |