Shaped artificial polymer articles
US-12286380-B2 · Apr 29, 2025 · US
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Porous materials (C04B38/0625 takes precedence)
Porous materials (C04B38/0625 takes precedence) · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B38/0655 |
| Official title | {Porous materials (C04B38/0625 takes precedence)} |
| Display label | Porous materials (C04B38/0625 takes precedence) |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing honeycomb structure
US-11866378-B2 · Jan 9, 2024 · US
Self-supporting structures having active materials
US-11707729-B2 · Jul 25, 2023 · US
Batch compositions comprising pre-reacted inorganic particles and methods of manufacture of green bodies therefrom
US-11591265-B2 · Feb 28, 2023 · US
Honeycomb body having layered plugs and method of making the same
US-11459924-B2 · Oct 4, 2022 · US
Batch compositions comprising spheroidal pre-reacted inorganic particles and spheroidal pore-formers and methods of manufacture of honeycomb bodies therefrom
US-11447422-B2 · Sep 20, 2022 · US
Shaped artificial polymer articles
US-2022144712-A1 · May 12, 2022 · US
Batch compositions comprising pre-reacted inorganic particles and methods of manufacture of green bodies therefrom
US-2021363064-A1 · Nov 25, 2021 · US
Sound absorption material preparation method, sound absorption material and filling method thereof
US-10889525-B2 · Jan 12, 2021 · US
Processes and compositions for carbon foams and materials
US-10883053-B2 · Jan 5, 2021 · US
Method for producing honeycomb structure
US-2020399185-A1 · Dec 24, 2020 · US
Self-supporting structures having active materials
US-2020298206-A1 · Sep 24, 2020 · US
Batch compositions comprising spheroidal pre-reacted inorganic particles and spheroidal pore-formers and methods of manufacture of honeycomb bodies therefrom
US-2020255338-A1 · Aug 13, 2020 · US
Self-supporting structures having active materials
US-10710053-B2 · Jul 14, 2020 · US
Processes and compositions for carbon foams and materials
US-2019309226-A1 · Oct 10, 2019 · US
Heat-insulation film, and heat-insulation-film structure
US-10385801-B2 · Aug 20, 2019 · US
Honeycomb fired body, honeycomb filter, and method for producing honeycomb fired body
US-10363552-B2 · Jul 30, 2019 · US
Sound absorption material preparation method, sound absorption material and filling method thereof
US-2018354862-A1 · Dec 13, 2018 · US
Cordierite porous ceramic honeycomb articles
US-9856177-B2 · Jan 2, 2018 · US
Manufacturing method for honeycomb structure and honeycomb structure
US-9555355-B2 · Jan 31, 2017 · US