Patent applications are worldwide patent applications filed through the Patent Cooperation Treaty procedure or with a national patent office.
| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Belgium | 613 | 243 | 105 | 140 | 127 | 127 | 161 | 137 | 148 | 119 | 216 | 218 | 257 | 288 | 415 |
| Luxembourg | 165 | 91 | 64 | 21 | 43 | 52 | 56 | 90 | 119 | 301 | 512 | 243 | 359 | 679 | 1,441 |
| Netherlands | 764 | 529 | 633 | 240 | 310 | 338 | 449 | 288 | 287 | 314 | 365 | 394 | 449 | 825 | 1,390 |