Arrangement and method for heating hydraulic impact device
US-12480364-B2 · Nov 25, 2025 · US
for hydraulically actuated hammers having an accumulator
for hydraulically actuated hammers having an accumulator · 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 | B25D9/145 |
| Official title | {for hydraulically actuated hammers having an accumulator} |
| Display label | for hydraulically actuated hammers having an accumulator |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 11 |
| 2017 | 11 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 6 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydraulic hammer internal damping
US-12358113-B2 · Jul 15, 2025 · US
Hydraulic hammer with dampening accumulator
US-12172287-B2 · Dec 24, 2024 · US
Hydraulic Hammer with Dampening Accumulator
US-2024326212-A1 · Oct 3, 2024 · US
Rock breaking machine and method for storing pressure energy
US-12083663-B2 · Sep 10, 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
Rock drilling arrangement and machine
US-12005558-B2 · Jun 11, 2024 · US
Rock breaking machine and method for storing pressure energy
US-2023069735-A1 · Mar 2, 2023 · US
Rock drilling arrangment and machine
US-2022176535-A1 · Jun 9, 2022 · US
Hydraulic hammer having co-axial accumulator and piston
US-10562166-B2 · Feb 18, 2020 · US
Hydraulic hammer
US-10562165-B2 · Feb 18, 2020 · US
Hammer assembly
US-10363651-B2 · Jul 30, 2019 · US
Hydraulic buffer with fast startup
US-10245714-B2 · Apr 2, 2019 · US
Pressure indicator for hydraulic hammer
US-10094754-B2 · Oct 9, 2018 · US
Breaking device
US-9981370-B2 · May 29, 2018 · US
Hydraulic hammer having variable stroke control
US-9840000-B2 · Dec 12, 2017 · US
Accumulator membrane for a hydraulic hammer
US-9822802-B2 · Nov 21, 2017 · US
Hydraulic hammer having delayed automatic shutoff
US-9701003-B2 · Jul 11, 2017 · US
Pressure indicator for hydraulic hammer
US-2017167962-A1 · Jun 15, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B25D9/145?
- CPC B25D9/145 is the Cooperative Patent Classification code for “for hydraulically actuated hammers having an accumulator.”
- How many patents are filed under CPC B25D9/145 (for hydraulically actuated hammers having an accumulator)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC B25D9/145 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).