Guanidinium-based polyionic liquids and their use as additives for chemical mechanical planarization slurries
US-2026071094-A1 · Mar 12, 2026 · US
Amines
Amines · 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 | C08F12/28 |
| Official title | Amines |
| Display label | Amines |
| Total patents | 49 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 9 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 5 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Onium salt monomer, polymer, chemically amplified resist composition, and pattern forming process
US-2025298314-A1 · Sep 25, 2025 · US
(poly)ester and (poly)amide compositions, method for modifying (poly)esters or (poly)amides and catalyst therefor
US-2025179263-A1 · Jun 5, 2025 · US
Composition, compound, resin, substrate treatment method, and manufacturing method for semiconductor device
US-2024400949-A1 · Dec 5, 2024 · US
Antibacterial Composition
US-2024284904-A1 · Aug 29, 2024 · US
Charged surfactant particles and brush polymeric particles, methods of making same, and uses thereof
US-2024010778-A1 · Jan 11, 2024 · US
Multifunctional nanoparticles for theragnosis
US-2023248847-A1 · Aug 10, 2023 · US
Polymer, coating composition comprising same, and organic light emitting device using same
US-11706970-B2 · Jul 18, 2023 · US
Chalcogenide Hybrid Inorganic/organic Polymer (CHIP) materials as improved crosslinking agents for vulcanization
US-11674005-B2 · Jun 13, 2023 · US
Styrene-based copolymer for electrode binder of solid alkaline fuel cell and membrane electrode assembly comprising the same
US-2021320303-A1 · Oct 14, 2021 · US
Polyhemiaminal and polyhexahydrotriazine materials from 1,4 conjugate addition reactions
US-11041048-B2 · Jun 22, 2021 · US
Polymer, Coating Composition Comprising Same, and Organic Light Emitting Device Using Same
US-2021175427-A1 · Jun 10, 2021 · US
Multifunctional nanoparticles for theragnosis
US-2021162077-A1 · Jun 3, 2021 · US
Impact resistant flame retardant polyhexahydrotriazine polymers via generation of polyhexahydrotriazine monomers and hexahydro-1,3,5-triazine small molecules
US-11008422-B2 · May 18, 2021 · US
Polymer compound, method for preparing modified and conjugated diene-based polymer using the same, and modified and conjugated diene-based polymer
US-10829627-B2 · Nov 10, 2020 · US
Precatalysts and process for the metal-free functionalization of SP2 carbons using the same
US-10821429-B2 · Nov 3, 2020 · US
Chemical methods for preparation of covalent adaptable networks
US-2020317841-A1 · Oct 8, 2020 · US
Chalcogenide hybrid inorganic/organic polymer (chip) materials as improved crosslinking agents for vulcanization
US-2020207933-A1 · Jul 2, 2020 · US
Iminodiacetate chelating resin and manufacturing method therefor
US-10577480-B2 · Mar 3, 2020 · US
Impact resistant flame retardant polyhexahydrotriazine polymers via generation of polyhexahydrotriazine monomers and hexahydro-1,3,5-triazine small molecules
US-10544264-B2 · Jan 28, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F12/28?
- CPC C08F12/28 is the Cooperative Patent Classification code for “Amines.”
- How many patents are filed under CPC C08F12/28 (Amines)?
- Our database includes 49 publications tagged with this CPC code.
- Is patent activity under CPC C08F12/28 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).