Quick Answer
ClearSign Technologies Corp reported Research And Development Expense of $1.42 million for the year ending 2025.
- ClearSign Technologies Corp showed a decrease of -3.3% in Research And Development Expense from 2024 to 2025.
- This data is from ClearSign Technologies Corp's annual report (Form 10-K), filed with the SEC on March 31, 2026.
- XBRL data for this metric is available from 2011 to 2025 (15 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
- Over the full 15 years of available data (2011 to 2025), ClearSign Technologies Corp's Research And Development Expense has grown by 207.1%.
- Historical annual values: Fiscal year 2025: $1.42 million | Fiscal year 2024: $1.47 million | Fiscal year 2023: $739.0 thousand | Fiscal year 2022: $505.0 thousand | Fiscal year 2021: $2.68 million | Fiscal year 2020: $2.03 million | Fiscal year 2019: $3.06 million | Fiscal year 2018: $4.05 million | Fiscal year 2017: $4.71 million | Fiscal year 2016: $4.83 million | Fiscal year 2015: $2.93 million | Fiscal year 2014: $2.22 million | Fiscal year 2013: $1.85 million | Fiscal year 2012: $1.18 million | Fiscal year 2011: $463.0 thousand.
- Data sourced from SEC EDGAR public filings as of June 20, 2026.
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