| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 2 | |
| #2 | Canada | 1 | |
| #3 | Switzerland | 1 | |
| #4 | Germany | 1 | |
| #5 | Spain | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Hungary | 1 | |
| #9 | Ireland | 1 | |
| #10 | Italy | 1 | |
| #11 | Netherlands | 1 | |
| #12 | Sweden | 1 | |
| #13 | USSR (Union of Socialist Soviet Republics) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Organic fine chemistry | |
| #2 | Pharmaceuticals |
| # | Technology | |
|---|---|---|
| #1 | Heterocyclic compounds | |
| #2 | Medical preparations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Meth-Cohn Otto | 6 |
| #2 | Clarke James A | 3 |
| #3 | Clarke James Anthony | 3 |
| #4 | Clark N | 1 |
| #5 | Meth-Cohn O | 1 |
| #6 | Clarke J A | 1 |
| #7 | Webster W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB8417780D0 | Fume extractor device |