Gas supply pump for ship dual fuel engine
US-12540591-B2 · Feb 3, 2026 · US
This page is not indexed by search engines while we improve data quality.
Hydraulic arrangements
Hydraulic arrangements · 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 | F04B1/043 |
| Official title | Hydraulic arrangements |
| Display label | Hydraulic arrangements |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 4 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Axial pump assemblies
US-2025250971-A1 · Aug 7, 2025 · US
Gas supply pump for ship dual fuel engine
US-2025172132-A1 · May 29, 2025 · US
Axial pump assemblies
US-12313046-B2 · May 27, 2025 · US
Gas supply pump for ship dual fuel engine
US-12247564-B2 · Mar 11, 2025 · US
Axial Pump Assemblies
US-2023313786-A1 · Oct 5, 2023 · US
Axial pump assemblies
US-11708821-B2 · Jul 25, 2023 · US
Gas supply pump for ship dual fuel engine
US-2023220838-A1 · Jul 13, 2023 · US
Steering pivot pin forming an internal pneumatic passage
US-11654728-B2 · May 23, 2023 · US
Hydraulic device comprising an air flow line
US-11498411-B2 · Nov 15, 2022 · US
Axial Pump Assemblies
US-2022349393-A1 · Nov 3, 2022 · US
Axial pump assemblies with reciprocating element having ramped cam surfaces
US-11421665-B2 · Aug 23, 2022 · US
Axial pump assemblies
US-2021017968-A1 · Jan 21, 2021 · US
Hydraulic Device Comprising an Air Flow Line
US-2020198415-A1 · Jun 25, 2020 · US
Steering Pivot Pin Forming an Internal Pneumatic Passage
US-2020122526-A1 · Apr 23, 2020 · US
Piston Pump
US-2017291586-A1 · Oct 12, 2017 · US