Control plate of a hydraulic machine and hydraulic machine
US-12540604-B2 · Feb 3, 2026 · US
Plate-like distribution members · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04B1/188 |
| Official title | Plate-like distribution members |
| Display label | Plate-like distribution members |
| Total patents | 16 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12540604-B2 · Feb 3, 2026 · US
US-2026028970-A1 · Jan 29, 2026 · US
US-12503993-B2 · Dec 23, 2025 · US
US-12330769-B2 · Jun 17, 2025 · US
US-2024280120-A1 · Aug 22, 2024 · US
US-2024253770-A1 · Aug 1, 2024 · US
US-2024175429-A1 · May 30, 2024 · US
US-11933290-B2 · Mar 19, 2024 · US
US-11746762-B2 · Sep 5, 2023 · US
US-2022220948-A1 · Jul 14, 2022 · US
US-10669983-B2 · Jun 2, 2020 · US
US-10458387-B2 · Oct 29, 2019 · US
US-10227964-B2 · Mar 12, 2019 · US
US-2018045172-A1 · Feb 15, 2018 · US
US-2017159640-A1 · Jun 8, 2017 · US
US-2017058876-A1 · Mar 2, 2017 · US