Heat engine
US-2025215813-A1 · Jul 3, 2025 · US
by means of hydraulic motors · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F01K27/005 |
| Official title | {by means of hydraulic motors} |
| Display label | by means of hydraulic motors |
| Total patents | 14 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2025215813-A1 · Jul 3, 2025 · US
US-12281601-B2 · Apr 22, 2025 · US
US-2024200474-A1 · Jun 20, 2024 · US
US-11927117-B2 · Mar 12, 2024 · US
US-2023279787-A1 · Sep 7, 2023 · US
US-10502099-B2 · Dec 10, 2019 · US
US-10036510-B2 · Jul 31, 2018 · US
US-2018209308-A1 · Jul 26, 2018 · US
US-9964314-B2 · May 8, 2018 · US
US-2018030860-A1 · Feb 1, 2018 · US
US-2017350558-A1 · Dec 7, 2017 · US
US-2017241671-A1 · Aug 24, 2017 · US
US-2016223208-A1 · Aug 4, 2016 · US
US-2016130986-A1 · May 12, 2016 · US