Amphiphilic polysaccharides, polysaccharide-based hydrogels, and methods of manufacture
US-2025101139-A1 · Mar 27, 2025 · US
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Ethers
Ethers · 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 | C08B33/04 |
| Official title | Ethers |
| Display label | Ethers |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 3 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Amphiphilic polysaccharides, polysaccharide-based hydrogels, and methods of manufacture
US-12162962-B2 · Dec 10, 2024 · US
Preparation and/or formulation of proteins cross-linked with polysaccharides
US-2024100221-A1 · Mar 28, 2024 · US
Amphiphilic polysaccharides, polysaccharide-based hydrogels, and methods of manufacture
US-2022298265-A1 · Sep 22, 2022 · US
Amphiphilic polysaccharides, polysaccharide-based hydrogels, and methods of manufacture
US-11384161-B2 · Jul 12, 2022 · US
Preparation and/or formulation of proteins cross-linked with polysaccharides
US-2022008612-A1 · Jan 13, 2022 · US
Preparation and/or formulation of proteins cross-linked with polysaccharides
US-11065365-B2 · Jul 20, 2021 · US
Biocompatible nanoparticle and use thereof
US-10954348-B2 · Mar 23, 2021 · US
Preparation and/or formulation of proteins cross-linked with polysaccharides
US-2020246504-A1 · Aug 6, 2020 · US
Preparation and/or formulation of proteins cross-linked with polysaccharides
US-10653814-B2 · May 19, 2020 · US
Biocompatible nanoparticle and use thereof
US-2018327554-A1 · Nov 15, 2018 · US
Hemi-aminal ethers and thioethers of N-alkenyl cyclic compounds
US-9751866-B2 · Sep 5, 2017 · US
Polysaccharide derivative and separating agent for optical isomer containing the same
US-9499638-B2 · Nov 22, 2016 · US
Hemi-aminal ethers and thioethers of n-alkenyl cyclic compounds
US-2015344461-A1 · Dec 3, 2015 · US