Integrity test for a double filter capsule
US-12528054-B2 · Jan 20, 2026 · US
Detection of leaks in membrane apparatus or modules
Detection of leaks in membrane apparatus or modules · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D65/104 |
| Official title | {Detection of leaks in membrane apparatus or modules} |
| Display label | Detection of leaks in membrane apparatus or modules |
| Total patents | 54 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 8 |
| 2022 | 4 |
| 2023 | 6 |
| 2024 | 7 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and an apparatus for evaluating a condition of a water purification system
US-2025282648-A1 · Sep 11, 2025 · US
Membranes with reduced particle formation
US-2025205650-A1 · Jun 26, 2025 · US
Method and an apparatus for evaluating a condition of a water purification system
US-12312252-B2 · May 27, 2025 · US
Evaluation method and evaluation device for forward osmosis membrane module
US-12274984-B2 · Apr 15, 2025 · US
Vacuum leak detector having a sprayed-against membrane-test leak, and method
US-2025058284-A1 · Feb 20, 2025 · US
Method for preparing water quality profile, method for inspecting separation membrane module, and water treatment apparatus
US-12138593-B2 · Nov 12, 2024 · US
Method of detecting defects in separation membrane element and apparatus for detecting defects in separation membrane element
US-11992810-B2 · May 28, 2024 · US
Membrane defect inspection method and membrane defect inspection device
US-11986773-B2 · May 21, 2024 · US
Integrity test for a double filter capsule
US-2024042392-A1 · Feb 8, 2024 · US
Membrane defect inspection method and membrane defect inspection device
US-11890581-B2 · Feb 6, 2024 · US
Method for inspecting separation membrane module and method for manufacturing separation membrane module
US-11872520-B2 · Jan 16, 2024 · US
Porous hollow-fiber membrane and method for testing integrity
US-2024001309-A1 · Jan 4, 2024 · US
Method of evaluating separation membrane module
US-2023415099-A1 · Dec 28, 2023 · US
Method and system for filter device integrity testing
US-11712666-B2 · Aug 1, 2023 · US
Apparatus and method for testing integrity of an ultrafilter membrane
US-2023181806-A1 · Jun 15, 2023 · US
System of detecting a leak in a heat exchanger of a hemodialysis device
US-11590454-B2 · Feb 28, 2023 · US
Apparatus and method for testing integrity of an ultrafilter membrane
US-11571501-B2 · Feb 7, 2023 · US
Method and system for filter device integrity testing
US-2023024189-A1 · Jan 26, 2023 · US
Evaluation Method and Evaluation Device for Forward Osmosis Membrane Module
US-2022410073-A1 · Dec 29, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D65/104?
- CPC B01D65/104 is the Cooperative Patent Classification code for “Detection of leaks in membrane apparatus or modules.”
- How many patents are filed under CPC B01D65/104 (Detection of leaks in membrane apparatus or modules)?
- Our database includes 54 publications tagged with this CPC code.
- Is patent activity under CPC B01D65/104 growing?
- Publication counts under this code: 7 in 2024 vs 5 in 2025 (latest complete years).