Hydraulic hammer with integrated oil or fluid filter
US-2026092428-A1 · Apr 2, 2026 · US
comprising a built-in liquid motor {, i.e. the tool being driven by hydraulic pressure}
comprising a built-in liquid motor {, i.e. the tool being driven by hydraulic pressure} · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B25D9/12 |
| Official title | comprising a built-in liquid motor {, i.e. the tool being driven by hydraulic pressure} |
| Display label | comprising a built-in liquid motor {, i.e. the tool being driven by hydraulic pressure} |
| Total patents | 57 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 10 |
| 2018 | 2 |
| 2019 | 7 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 9 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rods for engaging a tool of a hammer within a housing of the hammer
US-12534871-B2 · Jan 27, 2026 · US
Arrangement and method for heating hydraulic impact device
US-12480364-B2 · Nov 25, 2025 · US
Hammer drill and method for deep drilling
US-12440952-B2 · Oct 14, 2025 · US
Valve cylinder, impact device and method
US-12404725-B2 · Sep 2, 2025 · US
Hydraulic hammer internal damping
US-12358113-B2 · Jul 15, 2025 · US
Piston guiding element, rock drilling machine and method
US-12330281-B2 · Jun 17, 2025 · US
Greaseless hydraulic hammer
US-12325116-B1 · Jun 10, 2025 · US
Hammer piston
US-12296453-B2 · May 13, 2025 · US
Grommet Installation Tool
US-2025135618-A1 · May 1, 2025 · US
Valve cylinder, impact device and method
US-2025027368-A1 · Jan 23, 2025 · US
Hammer drill and method for deep drilling
US-2024335931-A1 · Oct 10, 2024 · US
Hammer piston
US-2024326217-A1 · Oct 3, 2024 · US
Arrangement and method for heating hydraulic impact device
US-2024271488-A1 · Aug 15, 2024 · US
Hydraulic Hammer Internal Damping
US-2024253199-A1 · Aug 1, 2024 · US
Rods for engaging a tool of a hammer within a housing of the hammer
US-2024110362-A1 · Apr 4, 2024 · US
Breaking hammer and method of supporting percussion piston
US-11828137-B2 · Nov 28, 2023 · US
Piston guiding element, rock drilling machine and method
US-2023294260-A1 · Sep 21, 2023 · US
Hammer bushings with softened outer region
US-2023124502-A1 · Apr 20, 2023 · US
Control of remote demolition robot
US-11454984-B2 · Sep 27, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B25D9/12?
- CPC B25D9/12 is the Cooperative Patent Classification code for “comprising a built-in liquid motor {, i.e. the tool being driven by hydraulic pressure}.”
- How many patents are filed under CPC B25D9/12 (comprising a built-in liquid motor {, i.e. the tool being driven by hydraulic pressure})?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC B25D9/12 growing?
- Publication counts under this code: 5 in 2024 vs 9 in 2025 (latest complete years).