FUEL TECH, INC. Research and Development Expense
FUEL TECH, INC. (FTEK) reported Research and Development Expense of $646.00 thousand for the 3-month period ending 2026-06-30, per its 10-Q filed 2026-08-04.
Financial Statements › Expense Statement › Operating Expenses
us-gaap:ResearchAndDevelopmentExpense · last filed 2026-08-04
- FUEL TECH, INC. research and development expense for the quarter ending 2026-06-30 was $646.00K, a 31.84% increase year-over-year.
- FUEL TECH, INC. research and development expense for the quarter ending 2026-03-31 was $524.00K, a 8.07% decline year-over-year.
- FUEL TECH, INC. research and development expense for the quarter ending 2025-12-31 was $504.00K, a 24.44% increase year-over-year.
- FUEL TECH, INC. research and development expense for the quarter ending 2025-09-30 was $450.00K, a 24.65% increase year-over-year.
- FUEL TECH, INC. research and development expense for fiscal 2025 was $2.01M, a 28.77% increase from fiscal 2024.
- FUEL TECH, INC. research and development expense for fiscal 2024 was $1.56M, a 3.51% increase from fiscal 2023.
- FUEL TECH, INC. research and development expense for fiscal 2023 was $1.51M, a 68.83% increase from fiscal 2022.
- FUEL TECH, INC. research and development expense for fiscal 2022 was $895.00K, a 32.81% decline from fiscal 2021.
| Period end | Research and Development Expense 3 month | Research and Development Expense 3 month as first filed | Research and Development Expense 6 month | Research and Development Expense 6 month as first filed | Research and Development Expense 9 month | Research and Development Expense 9 month as first filed | Research and Development Expense 12 month | Research and Development Expense 12 month as first filed |
|---|---|---|---|---|---|---|---|---|
| 2026-06-30 | $646.00K 10-Q · filed 2026-08-04 | $1.17M 10-Q · filed 2026-08-04 | $1.67M derived: sum of 3 quarters · filed 2026-08-04 | $2.12M derived: sum of 4 quarters · filed 2026-08-04 | ||||
| 2026-03-31 | $524.00K 10-Q · filed 2026-05-05 | $1.03M derived: sum of 2 quarters · filed 2026-05-05 | $1.48M derived: sum of 3 quarters · filed 2026-05-05 | $1.97M derived: sum of 4 quarters · filed 2026-08-04 | ||||
| 2025-12-31 | $504.00K derived: 10-K 12 month − 10-Q 9 month · filed 2026-03-03 | $954.00K derived: sum of 2 quarters · filed 2026-03-03 | $1.44M derived: sum of 3 quarters · filed 2026-08-04 | $2.01M 10-K · filed 2026-03-03 | ||||
| 2025-09-30 | $450.00K 10-Q · filed 2025-11-04 | $940.00K derived: sum of 2 quarters · filed 2026-08-04 | $1.51M 10-Q · filed 2025-11-04 | $1.92M derived: sum of 4 quarters · filed 2026-08-04 | ||||
| 2025-06-30 | $490.00K 10-Q · filed 2026-08-04 | $1.06M 10-Q · filed 2026-08-04 | $1.47M derived: sum of 3 quarters · filed 2026-08-04 | $1.83M derived: sum of 4 quarters · filed 2026-08-04 | ||||
| 2025-03-31 | $570.00K 10-Q · filed 2026-05-05 | $975.00K derived: sum of 2 quarters · filed 2026-05-05 | $1.34M derived: sum of 3 quarters · filed 2026-05-05 | $1.76M derived: sum of 4 quarters · filed 2026-05-05 | ||||
| 2024-12-31 | $405.00K derived: 10-K 12 month − 10-Q 9 month · filed 2026-03-03 | $766.00K derived: sum of 2 quarters · filed 2026-03-03 | $1.19M derived: sum of 3 quarters · filed 2026-03-03 | $1.56M 10-K · filed 2026-03-03 | ||||
| 2024-09-30 | $361.00K 10-Q · filed 2025-11-04 | $783.00K derived: sum of 2 quarters · filed 2025-11-04 | $1.16M 10-Q · filed 2025-11-04 | $1.53M derived: sum of 4 quarters · filed 2025-11-04 | ||||
| 2024-06-30 | $422.00K 10-Q · filed 2025-08-05 | $798.00K 10-Q · filed 2025-08-05 | $1.17M derived: sum of 3 quarters · filed 2025-08-05 | $1.68M derived: sum of 4 quarters · filed 2025-08-05 | ||||
| 2024-03-31 | $376.00K 10-Q · filed 2025-05-12 | $743.00K derived: sum of 2 quarters · filed 2025-05-12 | $1.26M derived: sum of 3 quarters · filed 2025-05-12 | $1.67M derived: sum of 4 quarters · filed 2025-05-12 | ||||
| 2023-12-31 | $367.00K derived: 10-K 12 month − 10-Q 9 month · filed 2025-03-04 | $880.00K derived: sum of 2 quarters · filed 2025-03-04 | $1.29M derived: sum of 3 quarters · filed 2025-03-04 | $1.51M 10-K · filed 2025-03-04 | ||||
| 2023-09-30 | $513.00K 10-Q · filed 2024-11-06 | $926.00K derived: sum of 2 quarters · filed 2024-11-06 | $1.14M 10-Q · filed 2024-11-06 | $1.32M derived: sum of 4 quarters · filed 2024-11-06 | ||||
| 2023-06-30 | $413.00K 10-Q · filed 2024-08-06 | $631.00K 10-Q · filed 2024-08-06 | $810.00K derived: sum of 3 quarters · filed 2024-08-06 | $1.02M derived: sum of 4 quarters · filed 2024-08-06 | ||||
| 2023-03-31 | $218.00K 10-Q · filed 2024-05-07 | $397.00K derived: sum of 2 quarters · filed 2024-05-07 | $604.00K derived: sum of 3 quarters · filed 2024-05-07 | $893.00K derived: sum of 4 quarters · filed 2024-05-07 | ||||
| 2022-12-31 | $179.00K derived: 10-K 12 month − 10-Q 9 month · filed 2024-03-11 | $386.00K derived: sum of 2 quarters · filed 2024-03-11 | $675.00K derived: sum of 3 quarters · filed 2024-03-11 | $895.00K 10-K · filed 2024-03-11 | ||||
| 2022-09-30 | $207.00K 10-Q · filed 2023-11-07 | $496.00K derived: sum of 2 quarters · filed 2023-11-07 | $716.00K 10-Q · filed 2023-11-07 | $978.00K derived: sum of 4 quarters · filed 2023-11-07 | ||||
| 2022-06-30 | $289.00K 10-Q · filed 2023-08-08 | $509.00K 10-Q · filed 2023-08-08 | $771.00K derived: sum of 3 quarters · filed 2023-08-08 | $1.11M derived: sum of 4 quarters · filed 2023-08-08 | ||||
| 2022-03-31 | $220.00K 10-Q · filed 2023-05-09 | $482.00K derived: sum of 2 quarters · filed 2023-05-09 | $822.00K derived: sum of 3 quarters · filed 2023-05-09 | $1.14M derived: sum of 4 quarters · filed 2023-05-09 | ||||
| 2021-12-31 | $262.00K derived: 10-K 12 month − 10-Q 9 month · filed 2023-03-07 | $602.00K derived: sum of 2 quarters · filed 2023-03-07 | $917.00K derived: sum of 3 quarters · filed 2023-03-07 | $1.33M 10-K · filed 2023-03-07 | ||||
| 2021-09-30 | $340.00K 10-Q · filed 2022-11-08 | $655.00K derived: sum of 2 quarters · filed 2022-11-08 | $1.07M 10-Q · filed 2022-11-08 | $1.37M derived: sum of 4 quarters · filed 2022-11-08 | ||||
| 2021-06-30 | $315.00K 10-Q · filed 2022-08-10 | $730.00K 10-Q · filed 2022-08-10 | $1.03M derived: sum of 3 quarters · filed 2022-08-10 | $1.31M derived: sum of 4 quarters · filed 2022-08-10 | ||||
| 2021-03-31 | $415.00K 10-Q · filed 2022-05-10 | $712.00K derived: sum of 2 quarters · filed 2022-05-10 | $997.00K derived: sum of 3 quarters · filed 2022-05-10 | $1.27M derived: sum of 4 quarters · filed 2022-05-10 | ||||
| 2020-12-31 | $297.00K derived: 10-K 12 month − 10-Q 9 month · filed 2022-03-08 | $582.00K derived: sum of 2 quarters · filed 2022-03-08 | $853.00K derived: sum of 3 quarters · filed 2022-03-08 | $1.18M 10-K · filed 2022-03-08 | ||||
| 2020-09-30 | $285.00K 10-Q · filed 2021-11-09 | $556.00K derived: sum of 2 quarters · filed 2021-11-09 | $880.00K 10-Q · filed 2021-11-09 | $1.18M derived: sum of 4 quarters · filed 2021-11-09 | ||||
| 2020-06-30 | $271.00K 10-Q · filed 2021-08-10 | $595.00K 10-Q · filed 2021-08-10 | $899.00K derived: sum of 3 quarters · filed 2021-08-10 | $1.25M derived: sum of 4 quarters · filed 2021-08-10 | ||||
| 2020-03-31 | $324.00K 10-Q · filed 2021-05-12 | $628.00K derived: sum of 2 quarters · filed 2021-05-12 | $980.00K derived: sum of 3 quarters · filed 2021-05-12 | $1.19M derived: sum of 4 quarters · filed 2021-05-12 | ||||
| 2019-12-31 | $304.00K derived: 10-K 12 month − 10-Q 9 month · filed 2021-03-15 | $656.00K derived: sum of 2 quarters · filed 2021-03-15 | $861.00K derived: sum of 3 quarters · filed 2021-03-15 | $1.13M 10-K · filed 2021-03-15 | ||||
| 2019-09-30 | $352.00K 10-Q · filed 2020-11-10 | $557.00K derived: sum of 2 quarters · filed 2020-11-10 | $823.00K 10-Q · filed 2020-11-10 | $1.08M derived: sum of 4 quarters · filed 2020-11-10 | ||||
| 2019-06-30 | $205.00K 10-Q · filed 2020-08-11 | $471.00K 10-Q · filed 2020-08-11 | $730.00K derived: sum of 3 quarters · filed 2020-08-11 | $995.00K derived: sum of 4 quarters · filed 2020-08-11 | ||||
| 2019-03-31 | $266.00K 10-Q · filed 2020-05-12 | $525.00K derived: sum of 2 quarters · filed 2020-05-12 | $790.00K derived: sum of 3 quarters · filed 2020-05-12 | $1.05M derived: sum of 4 quarters · filed 2020-05-12 | ||||
| 2018-12-31 | $259.00K derived: 10-K 12 month − 10-Q 9 month · filed 2020-03-12 | $524.00K derived: sum of 2 quarters · filed 2020-03-12 | $785.00K derived: sum of 3 quarters · filed 2020-03-12 | $1.07M 10-K · filed 2020-03-12 | ||||
| 2018-09-30 | $265.00K 10-Q · filed 2019-11-13 | $526.00K derived: sum of 2 quarters · filed 2019-11-13 | $814.00K 10-Q · filed 2019-11-13 | $1.10M derived: sum of 4 quarters · filed 2020-03-12 | ||||
| 2018-06-30 | $261.00K 10-Q · filed 2019-08-13 | $549.00K 10-Q · filed 2019-08-13 | $839.00K derived: sum of 3 quarters · filed 2020-03-12 | $1.05M derived: sum of 4 quarters · filed 2020-03-12 | ||||
| 2018-03-31 | $288.00K 10-Q · filed 2019-05-13 | $578.00K derived: sum of 2 quarters · filed 2020-03-12 | $794.00K derived: sum of 3 quarters · filed 2020-03-12 | $1.07M derived: sum of 4 quarters · filed 2020-03-12 | ||||
| 2017-12-31 | $290.00K derived: 10-K 12 month − 10-Q 9 month · filed 2020-03-12 | $506.00K derived: sum of 2 quarters · filed 2020-03-12 | $786.00K derived: sum of 3 quarters · filed 2020-03-12 | $1.07M 10-K · filed 2020-03-12 | ||||
| 2017-09-30 | $216.00K 10-Q · filed 2018-11-13 | $496.00K derived: sum of 2 quarters · filed 2018-11-13 | $780.00K 10-Q · filed 2018-11-13 | $1.09M derived: sum of 4 quarters · filed 2019-03-14 | ||||
| 2017-06-30 | $280.00K 10-Q · filed 2018-08-13 | $564.00K 10-Q · filed 2018-08-13 | $878.00K derived: sum of 3 quarters · filed 2019-03-14 | $1.55M derived: sum of 4 quarters · filed 2019-03-14 | ||||
| 2017-03-31 | $284.00K 10-Q · filed 2018-05-09 | $1.01M 10-Q · filed 2017-05-11 | $598.00K derived: sum of 2 quarters · filed 2019-03-14 | $1.27M derived: sum of 3 quarters · filed 2019-03-14 | $1.56M derived: sum of 4 quarters · filed 2019-03-14 | |||
| 2016-12-31 | $314.00K derived: 10-K 12 month − 10-Q 9 month · filed 2019-03-14 | $986.00K derived: sum of 2 quarters · filed 2019-03-14 | $1.28M derived: sum of 3 quarters · filed 2019-03-14 | $1.75M 10-K · filed 2019-03-14 | $4.55M 10-K · filed 2017-03-14 | |||
| 2016-09-30 | $672.00K 10-Q · filed 2017-11-13 | $1.30M 10-Q · filed 2016-11-08 | $967.00K derived: sum of 2 quarters · filed 2017-11-13 | $1.44M 10-Q · filed 2017-11-13 | $3.58M 10-Q · filed 2016-11-08 | $197.00K derived: sum of 4 quarters · filed 2018-03-12 | ||
| 2016-06-30 | $295.00K 10-Q · filed 2017-08-14 | $1.12M 10-Q · filed 2016-08-09 | $766.00K 10-Q · filed 2017-08-14 | $2.28M 10-Q · filed 2016-08-09 | -$475.00K derived: sum of 3 quarters · filed 2018-03-12 | $1.05M derived: sum of 4 quarters · filed 2018-03-12 | ||
| 2016-03-31 | $1.16M 10-Q · filed 2017-05-11 | -$770.00K derived: sum of 2 quarters · filed 2018-03-12 | $751.00K derived: sum of 3 quarters · filed 2018-03-12 | $1.73M derived: sum of 4 quarters · filed 2018-03-12 | ||||
| 2015-12-31 | -$1.93M derived: 10-K 12 month − 10-Q 9 month · filed 2018-03-12 | -$407.00K derived: sum of 2 quarters · filed 2018-03-12 | $575.00K derived: sum of 3 quarters · filed 2018-03-12 | $1.45M 10-K · filed 2018-03-12 | $4.27M 10-K · filed 2016-03-24 | |||
| 2015-09-30 | $1.52M 10-Q · filed 2016-11-08 | $2.50M derived: sum of 2 quarters · filed 2016-11-08 | $3.38M 10-Q · filed 2016-11-08 | $3.99M derived: sum of 4 quarters · filed 2017-03-14 | ||||
| 2015-06-30 | $982.00K 10-Q · filed 2016-08-09 | $1.85M 10-Q · filed 2016-08-09 | $2.46M derived: sum of 3 quarters · filed 2017-03-14 | $2.84M derived: sum of 4 quarters · filed 2017-03-14 | ||||
| 2015-03-31 | $872.00K 10-Q · filed 2016-05-10 | $1.48M derived: sum of 2 quarters · filed 2017-03-14 | $1.86M derived: sum of 3 quarters · filed 2017-03-14 | $2.09M derived: sum of 4 quarters · filed 2017-03-14 | ||||
| 2014-12-31 | $611.00K derived: 10-K 12 month − 10-Q 9 month · filed 2017-03-14 | $990.00K derived: sum of 2 quarters · filed 2017-03-14 | $1.22M derived: sum of 3 quarters · filed 2017-03-14 | $1.46M 10-K · filed 2017-03-14 | ||||
| 2014-09-30 | $379.00K 10-Q · filed 2015-11-09 | $604.00K derived: sum of 2 quarters · filed 2015-11-09 | $848.00K 10-Q · filed 2015-11-09 | $1.47M derived: sum of 4 quarters · filed 2016-03-24 | ||||
| 2014-06-30 | $225.00K 10-Q · filed 2015-08-10 | $469.00K 10-Q · filed 2015-08-10 | $1.09M derived: sum of 3 quarters · filed 2016-03-24 | $1.55M derived: sum of 4 quarters · filed 2016-03-24 | ||||
| 2014-03-31 | $244.00K 10-Q · filed 2015-05-11 | $862.00K derived: sum of 2 quarters · filed 2016-03-24 | $1.32M derived: sum of 3 quarters · filed 2016-03-24 | $1.75M derived: sum of 4 quarters · filed 2016-03-24 | ||||
| 2013-12-31 | $618.00K derived: 10-K 12 month − 10-Q 9 month · filed 2016-03-24 | $1.08M derived: sum of 2 quarters · filed 2016-03-24 | $1.51M derived: sum of 3 quarters · filed 2016-03-24 | $2.44M 10-K · filed 2016-03-24 | ||||
| 2013-09-30 | $461.00K 10-Q · filed 2014-11-06 | $891.00K derived: sum of 2 quarters · filed 2014-11-06 | $1.82M 10-Q · filed 2014-11-06 | $2.64M derived: sum of 4 quarters · filed 2015-03-16 | ||||
| 2013-06-30 | $430.00K 10-Q · filed 2014-08-11 | $1.36M 10-Q · filed 2014-08-11 | $2.18M derived: sum of 3 quarters · filed 2015-03-16 | $2.75M derived: sum of 4 quarters · filed 2015-03-16 | ||||
| 2013-03-31 | $933.00K 10-Q · filed 2014-05-12 | $1.75M derived: sum of 2 quarters · filed 2015-03-16 | $2.32M derived: sum of 3 quarters · filed 2015-03-16 | $3.29M derived: sum of 4 quarters · filed 2015-03-16 | ||||
| 2012-12-31 | $819.00K derived: 10-K 12 month − 10-Q 9 month · filed 2015-03-16 | $1.39M derived: sum of 2 quarters · filed 2015-03-16 | $2.36M derived: sum of 3 quarters · filed 2015-03-16 | $2.86M 10-K · filed 2015-03-16 | ||||
| 2012-09-30 | $569.00K 10-Q · filed 2013-11-12 | $1.54M derived: sum of 2 quarters · filed 2013-11-12 | $2.04M 10-Q · filed 2013-11-12 | $2.44M derived: sum of 4 quarters · filed 2014-03-10 | ||||
| 2012-06-30 | $969.00K 10-Q · filed 2013-08-07 | $1.48M 10-Q · filed 2013-08-07 | $1.87M derived: sum of 3 quarters · filed 2014-03-10 | $2.23M derived: sum of 4 quarters · filed 2014-03-10 | ||||
| 2012-03-31 | $506.00K 10-Q · filed 2013-05-07 | $905.00K derived: sum of 2 quarters · filed 2014-03-10 | $1.26M derived: sum of 3 quarters · filed 2014-03-10 | $1.58M derived: sum of 4 quarters · filed 2014-03-10 | ||||
| 2011-12-31 | $399.00K derived: 10-K 12 month − 10-Q 9 month · filed 2014-03-10 | $757.00K derived: sum of 2 quarters · filed 2014-03-10 | $1.07M derived: sum of 3 quarters · filed 2014-03-10 | $1.47M 10-K · filed 2014-03-10 | ||||
| 2011-09-30 | $358.00K 10-Q · filed 2012-11-06 | $673.00K derived: sum of 2 quarters · filed 2012-11-06 | $1.07M 10-Q · filed 2012-11-06 | $1.45M derived: sum of 4 quarters · filed 2013-04-01 | ||||
| 2011-06-30 | $315.00K 10-Q · filed 2012-08-06 | $717.00K 10-Q · filed 2012-08-06 | $1.09M derived: sum of 3 quarters · filed 2013-04-01 | $1.35M derived: sum of 4 quarters · filed 2013-04-01 | ||||
| 2011-03-31 | $402.00K 10-Q · filed 2012-05-08 | $775.00K derived: sum of 2 quarters · filed 2013-04-01 | $1.04M derived: sum of 3 quarters · filed 2013-04-01 | $1.20M derived: sum of 4 quarters · filed 2013-04-01 | ||||
| 2010-12-31 | $373.00K derived: 10-K/A 12 month − 10-Q 9 month · filed 2013-04-01 | $637.00K derived: sum of 2 quarters · filed 2013-04-01 | $802.00K derived: sum of 3 quarters · filed 2013-04-01 | $948.00K 10-K/A · filed 2013-04-01 | ||||
| 2010-09-30 | $264.00K 10-Q · filed 2011-11-07 | $429.00K derived: sum of 2 quarters · filed 2011-11-07 | $575.00K 10-Q · filed 2011-11-07 | |||||
| 2010-06-30 | $165.00K 10-Q · filed 2011-08-08 | $311.00K 10-Q · filed 2011-08-08 | ||||||
| 2009-12-31 | $542.00K 10-K · filed 2012-03-05 |
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