Monolayer, composite, gas separation material, filter, gas separation device and method for manufacturing composite
US-12128366-B2 · Oct 29, 2024 · US
Laminated layers
Laminated layers · 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 | B01D69/1213 |
| Official title | {Laminated layers} |
| Display label | Laminated layers |
| Total patents | 820 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 67 |
| 2016 | 65 |
| 2017 | 72 |
| 2018 | 69 |
| 2019 | 83 |
| 2020 | 103 |
| 2021 | 99 |
| 2022 | 68 |
| 2023 | 78 |
| 2024 | 58 |
| 2025 | 47 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing polyamide-based reverse omosis membrane having excellent salt rejection and high permeable flux properties, and reverse osmosis membrane manufactured using the same
US-2015375179-A1 · Dec 31, 2015 · US
Polyamide water-treatment separation membrane having superior oxidation resistance and chlorine resistance properties, and method of manufacturing the same
US-2015375178-A1 · Dec 31, 2015 · US
Polyamide water-treatment separation membrane having properties of high salt rejection and high flux and manufacturing method thereof
US-2015352501-A1 · Dec 10, 2015 · US
High permeate flux reverse osmosis membrane including carbodiimide compound and method of manufacturing the same
US-9205384-B2 · Dec 8, 2015 · US
Hydrogen-separation-membrane protection layer and a coating method therefor
US-9199204-B2 · Dec 1, 2015 · US
Complex for acid gas separation, module for acid gas separation, and method for manufacturing module for acid gas separation
US-2015336056-A1 · Nov 26, 2015 · US
Hydrogen separation membrane, and method for manufacturing same
US-2015328590-A1 · Nov 19, 2015 · US
Stacked two-dimensional materials and methods for producing structures incorporating same
US-2015321147-A1 · Nov 12, 2015 · US
Separation membrane and separation membrane element
US-2015321148-A1 · Nov 12, 2015 · US
Liquid filtration media
US-9180393-B2 · Nov 10, 2015 · US
Separation membrane and method for producing the same
US-9174174-B2 · Nov 3, 2015 · US
Nanosieve composite membrane
US-2015306547-A1 · Oct 29, 2015 · US
Microporous laminated membrane and method for producing the same
US-2015306539-A1 · Oct 29, 2015 · US
Composite Membrane and Moisture Adjustment Module Using Same
US-2015311546-A1 · Oct 29, 2015 · US
Separation membrane and separation membrane element
US-2015298064-A1 · Oct 22, 2015 · US
Membrane, method for manufacturing the same, and composite membrane including the same
US-9156009-B2 · Oct 13, 2015 · US
Hollow porous membrane
US-2015283517-A1 · Oct 8, 2015 · US
Microfabricated ion-selective filter for filtration of ions and molecules
US-2015283512-A1 · Oct 8, 2015 · US
Ceramic porous membrane and ceramic filter
US-9149771-B2 · Oct 6, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D69/1213?
- CPC B01D69/1213 is the Cooperative Patent Classification code for “Laminated layers.”
- How many patents are filed under CPC B01D69/1213 (Laminated layers)?
- Our database includes 820 publications tagged with this CPC code.
- Is patent activity under CPC B01D69/1213 growing?
- Publication counts under this code: 58 in 2024 vs 47 in 2025 (latest complete years).