Patent applications are worldwide patent applications filed through the Patent Cooperation Treaty procedure or with a national patent office.
| 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Papua New Guinea | 1 | |||||||||||||
| Haiti | 1 | 2 | 2 | |||||||||||
| Yemen | 7 | 20 | 20 | 7 | 36 | 43 | 29 | 5 | 16 | 15 | 60 | 60 | 20 | |
| Burundi | 3 | 2 | 2 | |||||||||||
| Côte d'Ivoire | 26 | |||||||||||||
| Democratic Republic of the Congo | 44 | 42 | 72 |