| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | United Kingdom | 3 | |
| #3 | Belgium | 2 | |
| #4 | Germany | 1 | |
| #5 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Organic fine chemistry |
| # | Technology | |
|---|---|---|
| #1 | Heterocyclic compounds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Severin Stern Edward | 5 |
| #2 | Bentley Kenneth Walter | 4 |
| #3 | Marshall Frearson Peter | 2 |
| #4 | Lawson Watt Robert | 2 |
| #5 | Geoffrey Hardy Denis | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB937214A | Oripavine derivatives | |
| GB902659A | A process for the production of a derivative of thebaine | |
| GB925723A | Novel thebaine derivatives | |
| US2960507A | Piperidine compounds | |
| US3024241A | Nu-ether-alkylene norpethidines |