Patent applications are worldwide patent applications filed through the Patent Cooperation Treaty procedure or with a national patent office.
| Data | Valor | Modificar, % |
|---|---|---|
| 1996 | 23 | -37,84% |
| 1995 | 37 | 76,19% |
| 1994 | 21 | 0,00% |
| 1993 | 21 | -4,55% |
| 1991 | 22 | -53,19% |
| 1990 | 47 | 95,83% |
| 1989 | 24 |