Predictive tube failure detection for pump
US-12510065-B2 · Dec 30, 2025 · US
Leakage
Leakage · 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 | F04B2201/0803 |
| Official title | Leakage |
| Display label | Leakage |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for determining a leak rate in a displacement pump
US-2025382957-A1 · Dec 18, 2025 · US
Huge fleet sea water injection pump's mechanical seal integrity testing portable rig
US-2025283775-A1 · Sep 11, 2025 · US
Method for monitoring a hydraulic system
US-2024426291-A1 · Dec 26, 2024 · US
Bellows failure detection for a pump
US-2024376881-A1 · Nov 14, 2024 · US
Inspection method
US-2024360826-A1 · Oct 31, 2024 · US
Predictive tube failure detection for pump
US-2024271612-A1 · Aug 15, 2024 · US
Terminal unit and compressor
US-2024117801-A1 · Apr 11, 2024 · US
Lubricant pumping system
US-11852293-B2 · Dec 26, 2023 · US
Controls and related methods for mitigating liquid migration and/or floodback
US-11768019-B2 · Sep 26, 2023 · US
Refrigerant compressor seal arrangements
US-11732701-B2 · Aug 22, 2023 · US
Lubricant pumping system
US-2022341543-A1 · Oct 27, 2022 · US
Refrigerant compressor seal arrangements
US-2021372382-A1 · Dec 2, 2021 · US
Refrigerant compressor seal arrangements
US-11125216-B2 · Sep 21, 2021 · US
Gas leak determining method, and multi-stage compressor
US-11085430-B2 · Aug 10, 2021 · US
Device for supplying ports to a machine section of a hydraulic machine arrangement
US-11067100-B2 · Jul 20, 2021 · US
Method for monitoring the volumetric flow of a metering valve of a fluidic metering system of an internal combustion engine, in particular of a motor vehicle
US-10995749-B2 · May 4, 2021 · US
Accurate flow-in measurement by triplex pump and continuous verification
US-10859082-B2 · Dec 8, 2020 · US
Device for supplying ports to a machine section of a hydraulic machine arrangement
US-2020370570-A1 · Nov 26, 2020 · US
High-pressure fuel pump for a fuel injection system
US-10837430-B2 · Nov 17, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B2201/0803?
- CPC F04B2201/0803 is the Cooperative Patent Classification code for “Leakage.”
- How many patents are filed under CPC F04B2201/0803 (Leakage)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC F04B2201/0803 growing?
- Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).