Reverse osmosis membrane and method of producing the same
US-2024307831-A1 · Sep 19, 2024 · US
Surface irregularities
Surface irregularities · 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 | B01D2325/06 |
| Official title | Surface irregularities |
| Display label | Surface irregularities |
| Total patents | 240 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 19 |
| 2017 | 12 |
| 2018 | 22 |
| 2019 | 23 |
| 2020 | 16 |
| 2021 | 28 |
| 2022 | 14 |
| 2023 | 24 |
| 2024 | 26 |
| 2025 | 29 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Composite membranes and methods of making and use thereof
US-2018345227-A1 · Dec 6, 2018 · US
Composite semipermeable membrane
US-10143976-B2 · Dec 4, 2018 · US
Radiation-Curable Compositions, Membranes and the Manufacture and Use of Such Membranes
US-2018207589-A1 · Jul 26, 2018 · US
Hollow-fiber membrane blood purification device
US-10029216-B2 · Jul 24, 2018 · US
Fabrication of hierarchical silica nanomembranes and uses thereof for solid phase extraction of nucleic acids
US-10023859-B2 · Jul 17, 2018 · US
Sanitation systems and components thereof having a slippery surface
US-2018187022-A1 · Jul 5, 2018 · US
Flowcells with microretainers and particle separators for discrete seeding microspots
US-9962701-B2 · May 8, 2018 · US
Ultra-thin polymer film, and porous ultra-thin polymer film
US-9938384-B2 · Apr 10, 2018 · US
Separation of water using a membrane
US-2018071692-A1 · Mar 15, 2018 · US
Plasma Extractor
US-2018056243-A1 · Mar 1, 2018 · US
Composite semipermeable membrane
US-2017368510-A1 · Dec 28, 2017 · US
Separation of water using a membrane
US-9844758-B2 · Dec 19, 2017 · US
Production method of deformed porous hollow fiber membrane
US-9821501-B2 · Nov 21, 2017 · US
Composite Hollow Fiber Membrane Module and Manufacturing Method Therefor
US-2017266625-A1 · Sep 21, 2017 · US
Fabrication of hierarchical silica nanomembranes and uses thereof for solid phase extraction of nucleic acids
US-9765325-B2 · Sep 19, 2017 · US
Humidifier, plate, device, and motor vehicle
US-2017222235-A1 · Aug 3, 2017 · US
Membrane with Performance Enhancing Multi-Level Macroscopic Cavities
US-2017165611-A1 · Jun 15, 2017 · US
Composite semipermeable membrane
US-2017136422-A1 · May 18, 2017 · US
Fabrication of hierarchical silica nanomembranes and uses thereof for solid phase extraction of nucleic acids
US-2017096660-A1 · Apr 6, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2325/06?
- CPC B01D2325/06 is the Cooperative Patent Classification code for “Surface irregularities.”
- How many patents are filed under CPC B01D2325/06 (Surface irregularities)?
- Our database includes 240 publications tagged with this CPC code.
- Is patent activity under CPC B01D2325/06 growing?
- Publication counts under this code: 26 in 2024 vs 29 in 2025 (latest complete years).