Fluid end assembly
US-2023287882-A1 · Sep 14, 2023 · US
Housings
Housings · 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 | F04B1/145 |
| Official title | Housings |
| Display label | Housings |
| Total patents | 89 |
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 | 8 |
| 2017 | 8 |
| 2018 | 9 |
| 2019 | 4 |
| 2020 | 10 |
| 2021 | 7 |
| 2022 | 9 |
| 2023 | 12 |
| 2024 | 7 |
| 2025 | 10 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Portable airless sprayer
US-2023219107-A1 · Jul 13, 2023 · US
Fluid end assembly
US-11655812-B2 · May 23, 2023 · US
Fluid end assembly
US-11536267-B2 · Dec 27, 2022 · US
Fluid end assembly
US-2022372972-A1 · Nov 24, 2022 · US
Hydraulic unit
US-11486389-B2 · Nov 1, 2022 · US
Portable airless sprayer
US-11446689-B2 · Sep 20, 2022 · US
Portable airless sprayer
US-11446690-B2 · Sep 20, 2022 · US
Portable airless sprayer
US-2022266279-A1 · Aug 25, 2022 · US
Portable airless sprayer
US-2022266280-A1 · Aug 25, 2022 · US
Fluid end assembly
US-11408419-B2 · Aug 9, 2022 · US
Air-conditioning unit, compressor and housing structure thereof
US-11408411-B2 · Aug 9, 2022 · US
Pump having a unitary body
US-11187214-B2 · Nov 30, 2021 · US
Fluid End Assembly
US-2021215154-A1 · Jul 15, 2021 · US
Portable airless sprayer
US-2021162439-A1 · Jun 3, 2021 · US
Fluid end assembly
US-10962001-B2 · Mar 30, 2021 · US
Air-conditioning unit, compressor and housing structure thereof
US-2021079906-A1 · Mar 18, 2021 · US
Portable airless sprayer
US-10919060-B2 · Feb 16, 2021 · US
Hydraulic transaxle
US-10895249-B2 · Jan 19, 2021 · US
Axial piston machine
US-10859061-B2 · Dec 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B1/145?
- CPC F04B1/145 is the Cooperative Patent Classification code for “Housings.”
- How many patents are filed under CPC F04B1/145 (Housings)?
- Our database includes 89 publications tagged with this CPC code.
- Is patent activity under CPC F04B1/145 growing?
- Publication counts under this code: 7 in 2024 vs 10 in 2025 (latest complete years).