Environment-related technologies patents — Patent applications in Bulgaria
Bulgaria: Environment-related technologies patents — Patent applications was 33 Patents in 2023. ◆ Volatile
Environment-related technologies patents — Patent applications in Bulgaria, 1978–2023
Source: Organisation for Economic Co-operation and Development. Measured in Patents.
Analysis
The most recent figure for environment-related technologies patents — patent applications in Bulgaria is 33 Patents, measured in 2023.
That represents a change of down 1.5% on the previous year and up 11.4% over ten years.
Over the whole period, environment-related technologies patents — patent applications in Bulgaria peaked at 49.4 Patents in 2020 and was at its lowest, 0 Patents, in 1978.
Bulgaria ranks 41st of 88 countries on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Environment-related technologies patents — Patent applications in Bulgaria, year by year
| Year | Patents | Change |
|---|---|---|
| 1978 | 0 Patents | — |
| 1979 | 0 Patents | — |
| 1980 | 0 Patents | — |
| 1981 | 7 Patents | — |
| 1982 | 7 Patents | +0.0% |
| 1983 | 14 Patents | +100.0% |
| 1984 | 15 Patents | +7.1% |
| 1985 | 23 Patents | +53.3% |
| 1986 | 18.5 Patents | -19.6% |
| 1987 | 11 Patents | -40.5% |
| 1988 | 25 Patents | +127.3% |
| 1989 | 15 Patents | -40.0% |
| 1990 | 11.5 Patents | -23.3% |
| 1991 | 2.5 Patents | -78.3% |
| 1992 | 1 Patents | -60.0% |
| 1993 | 6.67 Patents | +566.7% |
| 1994 | 3 Patents | -55.0% |
| 1995 | 5.5 Patents | +83.3% |
| 1996 | 3.25 Patents | -40.9% |
| 1997 | 5.5 Patents | +69.2% |
| 1998 | 6 Patents | +9.1% |
| 1999 | 5 Patents | -16.7% |
| 2000 | 9 Patents | +80.0% |
| 2001 | 3.75 Patents | -58.3% |
| 2002 | 14.17 Patents | +277.8% |
| 2003 | 19.1 Patents | +34.8% |
| 2004 | 13 Patents | -31.9% |
| 2005 | 10.6 Patents | -18.5% |
| 2006 | 14 Patents | +32.1% |
| 2007 | 12 Patents | -14.3% |
| 2008 | 13 Patents | +8.3% |
| 2009 | 17 Patents | +30.8% |
| 2010 | 13 Patents | -23.5% |
| 2011 | 8 Patents | -38.5% |
| 2012 | 19 Patents | +137.5% |
| 2013 | 29.62 Patents | +55.9% |
| 2014 | 26.5 Patents | -10.5% |
| 2015 | 27.83 Patents | +5.0% |
| 2016 | 29.5 Patents | +6.0% |
| 2017 | 33 Patents | +11.9% |
| 2018 | 37 Patents | +12.1% |
| 2019 | 36 Patents | -2.7% |
| 2020 | 49.4 Patents | +37.2% |
| 2021 | 43.33 Patents | -12.3% |
| 2022 | 33.5 Patents | -22.7% |
| 2023 | 33 Patents | -1.5% |
Bulgaria compared with similar countries
- Bulgaria's 33 Patents is below the median for high income countries, which is 134.16 Patents, 25% of the median. (45 countries reporting)
- Bulgaria's 33 Patents is below the median for Europe & Central Asia, which is 106.83 Patents, 31% of the median. (33 countries reporting)
Biggest year-on-year movements
Years where Environment-related technologies patents — Patent applications in Bulgaria changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1993 | +566.7% | 1 Patents | 6.67 Patents |
| 2002 | +277.8% | 3.75 Patents | 14.17 Patents |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 0 Patents | 0 Patents | 0 Patents | 2 |
| 1980s | 13.55 Patents | 0 Patents | 25 Patents | 10 |
| 1990s | 4.99 Patents | 1 Patents | 11.5 Patents | 10 |
| 2000s | 12.56 Patents | 3.75 Patents | 19.1 Patents | 10 |
| 2010s | 25.95 Patents | 8 Patents | 37 Patents | 10 |
| 2020s | 39.81 Patents | 33 Patents | 49.4 Patents | 4 |
Countries ranked near Bulgaria
More environment data for Bulgaria
- Historical exposure to drought — Land soil moisture anomaly -1.39 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -1.52 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.573 °C (2025)
- Temperature change 2.18 °C (2025)
- Wood-based panels — Production, annual growth rate 0 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual -6.02 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate -0.7509 % change on previous year (2024)
Frequently asked questions
- What is environment-related technologies patents — patent applications in Bulgaria?
- Environment-related technologies patents — patent applications in Bulgaria was 33 Patents in 2023, according to Organisation for Economic Co-operation and Development.
- What is the highest environment-related technologies patents — patent applications recorded in Bulgaria?
- The highest recorded value was 49.4 Patents in 2020.
- What is the lowest environment-related technologies patents — patent applications recorded in Bulgaria?
- The lowest recorded value was 0 Patents in 1978.
- How does Bulgaria rank for environment-related technologies patents — patent applications?
- Bulgaria ranks 41st out of 88 countries with data for 2023.
- Is environment-related technologies patents — patent applications rising or falling in Bulgaria?
- Over the last ten years it is up 11.4%. The long-run trend across the full record is volatile.
- Where does this Bulgaria data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Environment-related technologies patents — Patent applications. Statizoid updates them automatically from the source API.
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About this data
To identify patents in environment-related technologies (ENV-TECH), detailed search strategies have been developed drawing on more than 200,000 classification symbols. The search strategies encompass a broad spectrum of technologies related to environmental pollution, water scarcity, climate change mitigation.