Polymer and triazine compound
US-2024052103-A1 · Feb 15, 2024 · US
Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors · 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 | C08J2379/04 |
| Official title | Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors |
| Display label | Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors |
| Total patents | 379 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 24 |
| 2016 | 60 |
| 2017 | 47 |
| 2018 | 37 |
| 2019 | 34 |
| 2020 | 40 |
| 2021 | 28 |
| 2022 | 33 |
| 2023 | 28 |
| 2024 | 32 |
| 2025 | 12 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for microwave processing of photosensitive polyimides
US-9519221-B2 · Dec 13, 2016 · US
Graphene-augmented composite materials
US-9518160-B2 · Dec 13, 2016 · US
Dibenzylated polybenzimidazole based polymer and method for preparing the same
US-9509008-B2 · Nov 29, 2016 · US
Resin composition, prepreg, and laminate
US-9480164-B2 · Oct 25, 2016 · US
Method for Preparing Fiber-Reinforced Parts Based on Cyanate Ester/Epoxy Blends
US-2016304684-A1 · Oct 20, 2016 · US
High-performance, filler-reinforced, recyclable composite materials
US-2016304348-A1 · Oct 20, 2016 · US
Curing composite materials comprising latent-cure resins
US-9469055-B2 · Oct 18, 2016 · US
Polyhexahydrotriazine dielectrics
US-2016300644-A1 · Oct 13, 2016 · US
Production method for fibre-reinforced composite material, prepreg, particle-containing resin composition, and fibre-reinforced composite material
US-2016297942-A1 · Oct 13, 2016 · US
Prepreg, fibre-reinforced composite material, and particle-containing resin composition
US-2016289405-A1 · Oct 6, 2016 · US
Methods of manufacturing poly(hexahydrotriazine)s via suspension or emulsion polymerization
US-2016289387-A1 · Oct 6, 2016 · US
Prepreg, fibre-reinforced composite material, and particle-containing resin composition
US-2016289403-A1 · Oct 6, 2016 · US
Polyhemiaminal and polyhexahydrotriazine materials from 1,4 conjugate addition reactions
US-9458299-B1 · Oct 4, 2016 · US
Halogen-free resin composition and uses thereof
US-2016272808-A1 · Sep 22, 2016 · US
Polyhemiaminal And Polyhexahydrotriazine Materials From 1,4 Conjugate Addition Reactions
US-2016264734-A1 · Sep 15, 2016 · US
Halogen-free resin composition, and a prepreg and a laminate used for printed circuit using the same
US-2016244602-A1 · Aug 25, 2016 · US
Resin composition, prepreg, laminated sheet, and metal-foil-clad laminated board
US-2016237246-A1 · Aug 18, 2016 · US
Ion exchange polymers and a method for making ion exchange polymers
US-2016228867-A1 · Aug 11, 2016 · US
Nanostructured bacteria-resistant polymer materials
US-2016215108-A1 · Jul 28, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08J2379/04?
- CPC C08J2379/04 is the Cooperative Patent Classification code for “Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors.”
- How many patents are filed under CPC C08J2379/04 (Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors)?
- Our database includes 379 publications tagged with this CPC code.
- Is patent activity under CPC C08J2379/04 growing?
- Publication counts under this code: 32 in 2024 vs 12 in 2025 (latest complete years).