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 | C08L79/04 |
| 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 | 669 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 72 |
| 2016 | 81 |
| 2017 | 85 |
| 2018 | 68 |
| 2019 | 74 |
| 2020 | 70 |
| 2021 | 51 |
| 2022 | 51 |
| 2023 | 36 |
| 2024 | 49 |
| 2025 | 30 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing a mineral fibre-containing element and element produced by that method
US-9221965-B2 · Dec 29, 2015 · US
Heat-curable resin composition
US-2015353731-A1 · Dec 10, 2015 · US
Halogen-free resin composition, and prepreg and laminate for printed circuits using same
US-2015353722-A1 · Dec 10, 2015 · US
Composition for bonding windings or core laminates in an electrical machine, and associated method
US-2015353788-A1 · Dec 10, 2015 · US
Low dielectric resin composition, and resin film, prepreg, printed circuit board made thereby
US-2015353730-A1 · Dec 10, 2015 · US
Curable composition for electrical machine, and associated method
US-2015357086-A1 · Dec 10, 2015 · US
Preparation of functional polysulfones
US-9206289-B1 · Dec 8, 2015 · US
Preparation of functional polysulfones
US-2015344633-A1 · Dec 3, 2015 · US
Adhesive resin compositions, and laminates and flexible printed wiring boards using same
US-9181464-B2 · Nov 10, 2015 · US
Resin composition, prepreg, laminate, metallic foil clad laminate, and printed circuit board
US-2015319853-A1 · Nov 5, 2015 · US
Conductive composition and method of preparation, polymer thereof, and electrode, electrolyte membrane and fuel cell including the composition or polymer
US-9178237-B2 · Nov 3, 2015 · US
Methods for dispersing carbon nanotubes and compositions used for the methods
US-9169394-B2 · Oct 27, 2015 · US
Polymer membranes, processes for production thereof and use thereof
US-9168567-B2 · Oct 27, 2015 · US
Curable compositions, processes for using such compositions to prepare composites and processes for preparing composites having superior surface finish and high fiber consolidation
US-9168703-B2 · Oct 27, 2015 · US
Anticorrosion coatings
US-9169393-B2 · Oct 27, 2015 · US
Amine/thiol curing of benzoxazines
US-9156946-B2 · Oct 13, 2015 · US
Membranes with improved flux and method for their preparation
US-2015274891-A1 · Oct 1, 2015 · US
Prepreg, carbon-fiber-reinforced composite material, and robot hand
US-2015274913-A1 · Oct 1, 2015 · US
Resin composition, and printed wiring board, laminated sheet, and prepreg using same
US-9133308-B2 · Sep 15, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08L79/04?
- CPC C08L79/04 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 C08L79/04 (Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors)?
- Our database includes 669 publications tagged with this CPC code.
- Is patent activity under CPC C08L79/04 growing?
- Publication counts under this code: 49 in 2024 vs 30 in 2025 (latest complete years).