Pressure pulse generation
US-12422105-B2 · Sep 23, 2025 · US
in the form of a bladder
in the form of a bladder · 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 | F15B1/165 |
| Official title | {in the form of a bladder} |
| Display label | in the form of a bladder |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 5 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pressure pulse generation
US-2025155089-A1 · May 15, 2025 · US
Accumulator for a chassis-level cooling system
US-2025159840-A1 · May 15, 2025 · US
Hydraulic Accumulator
US-2024110580-A1 · Apr 4, 2024 · US
Accumulator for a chassis-level cooling system
US-2023262928-A1 · Aug 17, 2023 · US
Pressure compensation device designed for underwater applications
US-11674529-B2 · Jun 13, 2023 · US
Accumulator with flexible inflatable container
US-11359648-B2 · Jun 14, 2022 · US
High-capacity bladder type constant pressure accumulator and application thereof
US-2022178388-A1 · Jun 9, 2022 · US
Equalization device, in particular in the form of a tank
US-11168706-B2 · Nov 9, 2021 · US
Gas-liquid Coupling Type Fluid Pulsation Attenuator
US-2021293257-A1 · Sep 23, 2021 · US
Engineered tissue substitute system
US-10865811-B2 · Dec 15, 2020 · US
Accumulator With Flexible Inflatable Container
US-2020378410-A1 · Dec 3, 2020 · US
Pressure Compensation Device Designed for Underwater Applications
US-2020166056-A1 · May 28, 2020 · US
Equalization device, in particular in the form of a tank
US-2020056629-A1 · Feb 20, 2020 · US
Method for the production of a bladder accumulator and bladder accumulator produced according to said method
US-10532527-B2 · Jan 14, 2020 · US
Engineered tissue substitute system
US-2019010963-A9 · Jan 10, 2019 · US
Engineered tissue substitute system
US-2018258960-A9 · Sep 13, 2018 · US
Method for the production of a bladder accumulator and bladder accumulator produced according to said method
US-2018162081-A1 · Jun 14, 2018 · US
Distributed piston elastomeric accumulator
US-9920775-B2 · Mar 20, 2018 · US
Engineered tissue substitute system
US-2018031005-A1 · Feb 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F15B1/165?
- CPC F15B1/165 is the Cooperative Patent Classification code for “in the form of a bladder.”
- How many patents are filed under CPC F15B1/165 (in the form of a bladder)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC F15B1/165 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).