Electric water pump
US-12497977-B2 · Dec 16, 2025 · US
double suction pumps
double suction pumps · 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 | F04D1/006 |
| Official title | {double suction pumps} |
| Display label | double suction pumps |
| Total patents | 58 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 6 |
| 2018 | 6 |
| 2019 | 2 |
| 2020 | 10 |
| 2021 | 9 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Centrifugal compressor
US-12404866-B1 · Sep 2, 2025 · US
Electric water pump
US-2025012293-A1 · Jan 9, 2025 · US
Centrifugal pump assembly
US-12180968-B2 · Dec 31, 2024 · US
End-suction pump with dual inlet impeller
US-2024110578-A1 · Apr 4, 2024 · US
Single suction centrifugal blower
US-11852163-B2 · Dec 26, 2023 · US
Centrifugal pump assembly
US-2023167826-A1 · Jun 1, 2023 · US
Multistage centrifugal pump for conveying a fluid
US-11649825-B2 · May 16, 2023 · US
Electric pump with isolated stator
US-2023065642-A1 · Mar 2, 2023 · US
Pump assembly, in particular for supplying a slide ring seal assembly
US-11585346-B2 · Feb 21, 2023 · US
Centrifugal pump assembly
US-11555499-B2 · Jan 17, 2023 · US
High efficiency double suction impeller
US-11536273-B2 · Dec 27, 2022 · US
Pump for conveying a fluid
US-11493053-B2 · Nov 8, 2022 · US
Double-suction centrifugal pump
US-11441576-B2 · Sep 13, 2022 · US
Process fluid lubricated pump and seawater injection system
US-11415143-B2 · Aug 16, 2022 · US
Circulation pump assembly
US-11359822-B2 · Jun 14, 2022 · US
Pump assembly
US-11333151-B2 · May 17, 2022 · US
Clothes treating device
US-11274390-B2 · Mar 15, 2022 · US
Multistage centrifugal pump for conveying a fluid
US-2022065255-A1 · Mar 3, 2022 · US
Hybrid driven double pump
US-11199122-B2 · Dec 14, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D1/006?
- CPC F04D1/006 is the Cooperative Patent Classification code for “double suction pumps.”
- How many patents are filed under CPC F04D1/006 (double suction pumps)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC F04D1/006 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).