Bulgaria vs El Salvador: Annual patents filed in sustainable energy
Bulgaria
1 patents
in 2023
El Salvador
1 patents
in 2018
Bulgaria rank
61st
El Salvador rank
61st
Annual patents filed in sustainable energy over time
- Bulgaria
- El Salvador
How they compare
Bulgaria currently reports 1 patents against 1 patents in El Salvador, a difference of 0 patents.
Across all 8 years both countries report, Bulgaria has been ahead every year.
Bulgaria ranks 61st and El Salvador ranks 61st of 74 countries.
Bulgaria has averaged higher in every one of the 2 decades both report.
Head to head by decade
| Decade | Bulgaria | El Salvador | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 18 patents | 3.5 patents | 14.5 patents | Bulgaria |
| 2010s | 16.5 patents | 2.83 patents | 13.67 patents | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual patents filed in sustainable energy, Bulgaria or El Salvador?
- Bulgaria, at 1 patents against 1 patents in El Salvador as of 2023.
- What is the difference in annual patents filed in sustainable energy between Bulgaria and El Salvador?
- 0 patents, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and El Salvador?
- 8 years are reported by both, from 2005 to 2018.
- How do Bulgaria and El Salvador rank globally for annual patents filed in sustainable energy?
- Bulgaria ranks 61st and El Salvador ranks 61st of 74 countries.
- Where does this data come from?
- IRENA - INSPIRE Platform (2025) – with major processing by Our World in Data, published as Annual patents filed in sustainable energy. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Figures in recent years are subject to a time lag; submitted patents may not yet be reflected in the data.