Monolithic membrane filtration structure
US-2020384419-A1 · Dec 10, 2020 · US
Silicon carbide; Silicon nitride; Silicon oxycarbide
Silicon carbide; Silicon nitride; Silicon oxycarbide · 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 | B01D71/0215 |
| Official title | {Silicon carbide; Silicon nitride; Silicon oxycarbide} |
| Display label | Silicon carbide; Silicon nitride; Silicon oxycarbide |
| Total patents | 119 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 9 |
| 2018 | 14 |
| 2019 | 14 |
| 2020 | 13 |
| 2021 | 10 |
| 2022 | 14 |
| 2023 | 11 |
| 2024 | 11 |
| 2025 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ceramic hollow fiber membranes with improved mechanical properties
US-10857505-B2 · Dec 8, 2020 · US
Sample preparation and flow-through sensors using functionalized silicon nanomembranes
US-2020333311-A1 · Oct 22, 2020 · US
Method for separating carbon dioxide
US-10807036-B2 · Oct 20, 2020 · US
Localizing nanopore fabrication on a membrane by laser illumination during controlled breakdown
US-10753009-B2 · Aug 25, 2020 · US
Inorganic structure body, device, and method for manufacturing inorganic structure body
US-2020254395-A1 · Aug 13, 2020 · US
Freeze-cast ceramic membrane for size based filtration
US-2020115291-A1 · Apr 16, 2020 · US
Method and apparatus for making a nanopore in a membrane using an electric field applied via a conductive tip
US-2020054999-A1 · Feb 20, 2020 · US
Molten hydroxide membrane for separation of acid gases from emissions
US-2020030740-A1 · Jan 30, 2020 · US
Molten hydroxide membrane for separation of acid gases from emissions
US-2020030741-A1 · Jan 30, 2020 · US
Flow control method and apparatuses
US-10526218-B2 · Jan 7, 2020 · US
Method for inspecting separation membrane structure, method for manufacturing separation membrane module, and method for manufacturing separation membrane structure
US-2019391064-A1 · Dec 26, 2019 · US
Nuclear Power Plant
US-2019371481-A1 · Dec 5, 2019 · US
Molten hydroxide membrane for separation of acid gases from emissions
US-10464015-B2 · Nov 5, 2019 · US
Hydrogen-releasing film
US-10439185-B2 · Oct 8, 2019 · US
Ceramic multilayer filter membrane
US-10413870-B2 · Sep 17, 2019 · US
Use of semipermeable membranes in cracking coils
US-2019241815-A1 · Aug 8, 2019 · US
Systems and methods for treating oilfield wastewater
US-10364173-B2 · Jul 30, 2019 · US
Water separation device for engine exhaust gas
US-10337370-B2 · Jul 2, 2019 · US
Transfer line
US-10272393-B2 · Apr 30, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D71/0215?
- CPC B01D71/0215 is the Cooperative Patent Classification code for “Silicon carbide; Silicon nitride; Silicon oxycarbide.”
- How many patents are filed under CPC B01D71/0215 (Silicon carbide; Silicon nitride; Silicon oxycarbide)?
- Our database includes 119 publications tagged with this CPC code.
- Is patent activity under CPC B01D71/0215 growing?
- Publication counts under this code: 11 in 2024 vs 11 in 2025 (latest complete years).