Cellulosic gels, films and composites including the gels, and methods of forming same
US-2025346732-A1 · Nov 13, 2025 · US
Xerogel, i.e. an air dried gel
Xerogel, i.e. an air dried gel · 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 | C08J2205/028 |
| Official title | Xerogel, i.e. an air dried gel |
| Display label | Xerogel, i.e. an air dried gel |
| Total patents | 61 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 9 |
| 2018 | 9 |
| 2019 | 6 |
| 2020 | 7 |
| 2021 | 8 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cellulosic gels, films and composites including the gels, and methods of forming same
US-12384899-B2 · Aug 12, 2025 · US
Ceramic particles in a bicontinuous phase and method of production therefor
US-2025197584-A1 · Jun 19, 2025 · US
Polymer gel having sponge-like porous structure
US-12227642-B2 · Feb 18, 2025 · US
Water co-catalyst for polyimide process
US-2024254301-A1 · Aug 1, 2024 · US
Cellulosic gels, films and composites including the gels, and methods of forming same
US-2024218144-A1 · Jul 4, 2024 · US
Cellulosic gels, films and composites including the gels, and methods of forming same
US-11999836-B2 · Jun 4, 2024 · US
Water co-catalyst for polyimide processes
US-11932745-B2 · Mar 19, 2024 · US
Method for producing porous silicone sheet, frozen body, and porous silicone sheet rolled-body
US-11820114-B2 · Nov 21, 2023 · US
Polymer materials
US-2023172496-A1 · Jun 8, 2023 · US
Method for preparing nano attapulgite and phenolic aerogel and method for preparing abrasion-resistant vehicle tire
US-11597809-B2 · Mar 7, 2023 · US
Polymer materials
US-11504033-B2 · Nov 22, 2022 · US
(Super)hydrophobic isocyanate based porous materials
US-11434344-B2 · Sep 6, 2022 · US
Method for preparing nano attapulgite and phenolic aerogel and method for preparing abrasion-resistant vehicle tire
US-2022251323-A1 · Aug 11, 2022 · US
Water co-catalyst for polyimide processes
US-2022185985-A1 · Jun 16, 2022 · US
Monolithic, super heat-insulating, organic aerogel composition preparation method, said composition, and the use thereof
US-11155690-B2 · Oct 26, 2021 · US
Cellulosic gels, films and composites including the gels, and methods of forming same
US-2021253820-A1 · Aug 19, 2021 · US
Method for producing porous silicone sheet, frozen body, and porous silicone sheet rolled-body
US-2021221111-A1 · Jul 22, 2021 · US
Process for producing porous alginate-based aerogels
US-11028247-B2 · Jun 8, 2021 · US
Polymer gel having sponge-like porous structure
US-2021155799-A1 · May 27, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08J2205/028?
- CPC C08J2205/028 is the Cooperative Patent Classification code for “Xerogel, i.e. an air dried gel.”
- How many patents are filed under CPC C08J2205/028 (Xerogel, i.e. an air dried gel)?
- Our database includes 61 publications tagged with this CPC code.
- Is patent activity under CPC C08J2205/028 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).