Subsea fluid processing system having a canned fluid-filled stator and cooling mechanism
US-12442375-B2 · Oct 14, 2025 · US
pressure compensation between motor- and pump- compartment
pressure compensation between motor- and pump- compartment · 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 | F04D13/062 |
| Official title | {pressure compensation between motor- and pump- compartment} |
| Display label | pressure compensation between motor- and pump- compartment |
| Total patents | 51 |
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 | 5 |
| 2017 | 4 |
| 2018 | 10 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Subsea fluid processing system having a canned motor stator filled with a dielectric fluid
US-12372090-B2 · Jul 29, 2025 · US
Inverted closed bellows with lubricated guide ring support
US-11976660-B2 · May 7, 2024 · US
Fluid expansion chamber with protected bellow
US-11795795-B2 · Oct 24, 2023 · US
Modular compact pump
US-2023243354-A1 · Aug 3, 2023 · US
Data and power configuration for electrical submersible well pump
US-11674518-B2 · Jun 13, 2023 · US
Blade and pump impeller assembly for a dishwasher
US-11672402-B2 · Jun 13, 2023 · US
Submersible pump with barrier fluid isolation of motor lubricating liquid from pumped product
US-11499558-B2 · Nov 15, 2022 · US
Submersible pump with barrier fluid isolation of motor lubricating liquid from pumped product
US-2022316465-A1 · Oct 6, 2022 · US
Blade and pump impeller assembly for a dishwasher
US-2022313058-A1 · Oct 6, 2022 · US
Subsea electric fluid processing machine
US-2022252070-A1 · Aug 11, 2022 · US
Subsea electric fluid processing machine
US-2022252071-A1 · Aug 11, 2022 · US
Blade and pump impeller assembly for a dishwasher
US-11382485-B2 · Jul 12, 2022 · US
Isolated chamber for mechanical face seal leakage in submersible well pump assembly
US-11268518-B2 · Mar 8, 2022 · US
Data and Power Configuration For Electrical Submersible Well Pump
US-2021381350-A1 · Dec 9, 2021 · US
Subsea barrier fluid system
US-11053944-B2 · Jul 6, 2021 · US
Valve-less variable displacement pump
US-10962014-B2 · Mar 30, 2021 · US
Method of determining circulation state of cooling water
US-10947982-B2 · Mar 16, 2021 · US
Inverted closed bellows with lubricated guide ring support
US-2021071510-A1 · Mar 11, 2021 · US
Blade and pump impeller assembly for a dishwasher
US-2021030254-A1 · Feb 4, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D13/062?
- CPC F04D13/062 is the Cooperative Patent Classification code for “pressure compensation between motor- and pump- compartment.”
- How many patents are filed under CPC F04D13/062 (pressure compensation between motor- and pump- compartment)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC F04D13/062 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).