Highly soluble tris-(2,3-epoxypropyl)-isocyanurate and method for producing same
US-12077636-B2 · Sep 3, 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 | C09D179/04 |
| 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 | 353 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 48 |
| 2016 | 64 |
| 2017 | 37 |
| 2018 | 31 |
| 2019 | 37 |
| 2020 | 30 |
| 2021 | 23 |
| 2022 | 28 |
| 2023 | 23 |
| 2024 | 16 |
| 2025 | 15 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polymer and triazine compound
US-2024052103-A1 · Feb 15, 2024 · US
Film-forming composition
US-9502592-B2 · Nov 22, 2016 · US
Semiconductor encapsulation resin composition and semiconductor device comprised of cured product of the semiconductor encapsulation resin composition
US-2016336246-A1 · Nov 17, 2016 · US
Composition for forming protective film for transparent conductive film
US-2016319132-A1 · Nov 3, 2016 · US
Film-forming composition and embedding material
US-9434856-B2 · Sep 6, 2016 · US
Polybenzoxazole resin and precursor thereof
US-9410055-B2 · Aug 9, 2016 · US
Seed Scavenging Technologies for Waterborne Paint Formulations
US-2016177063-A1 · Jun 23, 2016 · US
Polymerizable composition including a benzoxazine and an acid-forming peroxide catalyst, article, and method
US-9371477-B2 · Jun 21, 2016 · US
Cyanate ester compound, curable resin composition containing said compound, and cured product of said composition
US-2016115271-A1 · Apr 28, 2016 · US
Novolac resin-containing resist underlayer film-forming composition using bisphenol aldehyde
US-2016068709-A1 · Mar 10, 2016 · US
Anticorrosion coatings
US-9228112-B2 · Jan 5, 2016 · US
Polymer and organic light-emitting device
US-2015376495-A1 · Dec 31, 2015 · US
Soluble, processable polyhemiaminals and polyhexahydrotriazines
US-2015376451-A1 · Dec 31, 2015 · US
Soluble, processable polyhemiaminals and polyhexahydrotriazines
US-2015376442-A1 · Dec 31, 2015 · US
Latent thickeners, rheology control kit and multi-component systems
US-2015368532-A1 · Dec 24, 2015 · US
Substrate and touch panel member using same
US-2015370358-A1 · Dec 24, 2015 · US
Sulfur scavenging materials for filters and coatings
US-2015360173-A1 · Dec 17, 2015 · US
Preparation of poly(octatriazacane)
US-2015361221-A1 · Dec 17, 2015 · US
Preparation of poly(octatriazacane)
US-2015361220-A1 · Dec 17, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09D179/04?
- CPC C09D179/04 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 C09D179/04 (Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors)?
- Our database includes 353 publications tagged with this CPC code.
- Is patent activity under CPC C09D179/04 growing?
- Publication counts under this code: 16 in 2024 vs 15 in 2025 (latest complete years).