Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
US-12435166-B2 · Oct 7, 2025 · US
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Esters containing nitrogen
Esters containing nitrogen · 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 | C08F18/22 |
| Official title | Esters containing nitrogen |
| Display label | Esters containing nitrogen |
| 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 | 1 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 3 |
| 2021 | 1 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
US-2024287218-A1 · Aug 29, 2024 · US
Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
US-11987654-B2 · May 21, 2024 · US
Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
US-2023125498-A1 · Apr 27, 2023 · US
Polymer glass transition temperature manipulation via Z/E hydrazone photoswitching
US-11566089-B2 · Jan 31, 2023 · US
Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
US-2021079134-A1 · Mar 18, 2021 · US
Cell mass culture vessel
US-10472598-B2 · Nov 12, 2019 · US
Binder composition for secondary battery electrode-use, slurry composition for secondary battery electrode-use, electrode for secondary battery-use, and secondary battery
US-10211461-B2 · Feb 19, 2019 · US
Oxalate ester—polyamine thermosetting compositions
US-10196548-B2 · Feb 5, 2019 · US
Oxalate ester - polyamine thermosetting compositions
US-2018355230-A1 · Dec 13, 2018 · US
Polyamine-dihydroxybenzoic acid conjugate hydrogels as iron chelators
US-2018289819-A1 · Oct 11, 2018 · US
Polyamine-dihydroxybenzoic acid conjugate hydrogels as iron chelators
US-10039836-B2 · Aug 7, 2018 · US
Polyamine-dihydroxybenzoic acid conjugate hydrogels as iron chelators
US-9974863-B2 · May 22, 2018 · US
Sterically hindered amine and oxyalkyl amine light stabilizers
US-2017305855-A1 · Oct 26, 2017 · US
Cell mass culture vessel
US-2017267960-A1 · Sep 21, 2017 · US
Resist composition and pattern forming process
US-9720324-B2 · Aug 1, 2017 · US
Degradable polycations derived from amino acid vinyl esters
US-9688789-B2 · Jun 27, 2017 · US
Binder composition for secondary battery electrode-use, slurry composition for secondary battery electrode-use, electrode for secondary battery-use, and secondary battery
US-2017084923-A1 · Mar 23, 2017 · US
Polyamine-dihydroxybenzoic acid conjugate hydrogels as iron chelators
US-2017028073-A1 · Feb 2, 2017 · US
Resist composition and pattern forming process
US-2017031243-A1 · Feb 2, 2017 · US