Patent applications are worldwide patent applications filed through the Patent Cooperation Treaty procedure or with a national patent office.
| Fecha | Valor | Cambiar , % |
|---|---|---|
| 2021 | 2 | -50,00 % |
| 2020 | 4 | 300,00 % |
| 2019 | 1 | -66,67 % |
| 2018 | 3 | -25,00 % |
| 2017 | 4 | 0,00 % |
| 2016 | 4 | -42,86 % |
| 2015 | 7 | 133,33 % |
| 1995 | 3 | -70,00 % |
| 1994 | 10 | 0,00 % |
| 1993 | 10 | -9,09 % |
| 1992 | 11 | 10,00 % |
| 1991 | 10 |