Heat-transfer-liquid-operated turbine and compressor
US-12494697-B2 · Dec 9, 2025 · US
using industrial or other waste gases
using industrial or other waste gases · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F01K25/14 |
| Official title | using industrial or other waste gases |
| Display label | using industrial or other waste gases |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 4 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Co2 power cycle with adiabatic compression
US-2025230759-A1 · Jul 17, 2025 · US
CO2 power cycle with adiabatic compression
US-12270320-B2 · Apr 8, 2025 · US
Co2 power cycle with adiabatic compression
US-2025052177-A1 · Feb 13, 2025 · US
Process plant for converting a solid input material into a solid process product
US-2025051228-A1 · Feb 13, 2025 · US
Thermal accumulator assembly
US-2024328332-A1 · Oct 3, 2024 · US
Thermal accumulator assembly
US-12084993-B1 · Sep 10, 2024 · US
Heat-transfer-liquid-operated turbine and compressor
US-2024243639-A1 · Jul 18, 2024 · US
Energy-recovery turbines for gas streams
US-11713697-B2 · Aug 1, 2023 · US
Blast furnace slag granulation and waste heat recovery and utilization device and method
US-2023100959-A1 · Mar 30, 2023 · US
Combined cooling, heating and power system
US-11614003-B2 · Mar 28, 2023 · US
Power cycle systems and methods
US-11098615-B2 · Aug 24, 2021 · US
Exhaust-gas treatment device, aircraft propulsion system, and method for treating an exhaust-gas stream
US-2021207500-A1 · Jul 8, 2021 · US
Energy-recovery turbines for gas streams
US-2021102476-A1 · Apr 8, 2021 · US
Combined cooling, heating and power system
US-2021087949-A1 · Mar 25, 2021 · US
Energy-recovery turbines for gas streams
US-10871085-B2 · Dec 22, 2020 · US
Use of recovered power in a process
US-10753235-B2 · Aug 25, 2020 · US
Hydroprocessing unit with power recovery turbines
US-10745631-B2 · Aug 18, 2020 · US
ORC for transporting waste heat from a heat source into mechanical energy and cooling system making use of such an ORC
US-10612423-B2 · Apr 7, 2020 · US
Energy-recovery turbines for gas streams
US-2019284964-A1 · Sep 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01K25/14?
- CPC F01K25/14 is the Cooperative Patent Classification code for “using industrial or other waste gases.”
- How many patents are filed under CPC F01K25/14 (using industrial or other waste gases)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC F01K25/14 growing?
- Publication counts under this code: 3 in 2024 vs 5 in 2025 (latest complete years).