| # | Country | Total Patents | |
|---|---|---|---|
| #1 | USSR (Union of Socialist Soviet Republics) | 2 | |
| #2 | Argentina | 1 | |
| #3 | Australia | 1 | |
| #4 | Belgium | 1 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | Switzerland | 1 | |
| #8 | Germany | 1 | |
| #9 | Egypt | 1 | |
| #10 | Spain | 1 | |
| #11 | France | 1 | |
| #12 | United Kingdom | 1 | |
| #13 | India | 1 | |
| #14 | Italy | 1 | |
| #15 | Japan | 1 | |
| #16 | Netherlands | 1 | |
| #17 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Organic fine chemistry | |
| #2 | Pharmaceuticals |
| # | Technology | |
|---|---|---|
| #1 | Special acyclic compounds | |
| #2 | Heterocyclic compounds | |
| #3 | Sugars | |
| #4 | Therapeutic chemical compounds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nikolaiski E | 2 |
| #2 | Nikolaiski Eckhard Dr | 2 |
| #3 | Nikolajski Ekkkhard | 2 |
| #4 | Nikolaiski Eckhard Siegfried D | 1 |
| #5 | Nikolaiski Eckhard | 1 |
| #6 | Nikolaiski Eckhard S | 1 |
| #7 | Etsukuharuto Nikoraisukii | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES458980A1 | 5-Oxy-substituted derivatives of Psoralene useful in dermatology |