Bulgaria vs Hong Kong: Annual patents filed for energy storage technologies
Bulgaria
1 patents
in 2020
Hong Kong
1 patents
in 2020
Bulgaria rank
39th
Hong Kong rank
39th
Annual patents filed for energy storage technologies over time
- Bulgaria
- Hong Kong
How they compare
Bulgaria currently reports 1 patents against 1 patents in Hong Kong, a difference of 0 patents.
Across all 9 years both countries report, Hong Kong has been ahead every year.
Bulgaria ranks 39th and Hong Kong ranks 39th of 55 countries.
Hong Kong has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Bulgaria | Hong Kong | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 1.33 patents | 52.67 patents | 51.33 patents | Hong Kong |
| 2010s | 1.2 patents | 61.2 patents | 60 patents | Hong Kong |
| 2020s | 1 patents | 1 patents | 0 patents | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual patents filed for energy storage technologies, Bulgaria or Hong Kong?
- Bulgaria, at 1 patents against 1 patents in Hong Kong as of 2020.
- What is the difference in annual patents filed for energy storage technologies between Bulgaria and Hong Kong?
- 0 patents, with Bulgaria ahead.
- How many years of comparable data are there for Bulgaria and Hong Kong?
- 9 years are reported by both, from 2000 to 2020.
- How do Bulgaria and Hong Kong rank globally for annual patents filed for energy storage technologies?
- Bulgaria ranks 39th and Hong Kong ranks 39th of 55 countries.
- Where does this data come from?
- IRENA - INSPIRE Platform (2025) – with major processing by Our World in Data, published as Annual patents filed for energy storage technologies. 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.