Polymers containing substituted oligo-triarylamine units and electroluminescence devices containing such polymers
US-9745420-B2 · Aug 29, 2017 · US
Wholly aromatic polyamines
Wholly aromatic polyamines · 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 | C08G73/026 |
| Official title | {Wholly aromatic polyamines} |
| Display label | Wholly aromatic polyamines |
| Total patents | 191 |
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 | 28 |
| 2016 | 24 |
| 2017 | 23 |
| 2018 | 25 |
| 2019 | 25 |
| 2020 | 19 |
| 2021 | 15 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 12 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polymer containing aldehyde groups, reaction and crosslinking of this polymer, crosslinked polymer, and electroluminescent device comprising this polymer
US-9728724-B2 · Aug 8, 2017 · US
Method of forming polymers
US-2017145160-A1 · May 25, 2017 · US
Method of forming polymers
US-9598539-B2 · Mar 21, 2017 · US
Material for organic electronics, organic electronic element, organic electroluminescent element, display element using organic electroluminescent element, illuminating device, and display device
US-9583714-B2 · Feb 28, 2017 · US
Hole transport composition
US-9574084-B2 · Feb 21, 2017 · US
Electroactive materials
US-2017040539-A1 · Feb 9, 2017 · US
Polymers, monomers and methods of forming polymers
US-9562136-B2 · Feb 7, 2017 · US
Polymer composition and polymer light emitting device
US-9523007-B2 · Dec 20, 2016 · US
Flame retardant pht compositions
US-2016362520-A1 · Dec 15, 2016 · US
Organic electroluminescent element, organic EL display device and organic EL illumination
US-9515277-B2 · Dec 6, 2016 · US
Polymer and organic light-emitting device
US-2016336514-A1 · Nov 17, 2016 · US
Organic light emitting composition, device and method
US-9493613-B2 · Nov 15, 2016 · US
Hole transport materials
US-2016329497-A1 · Nov 10, 2016 · US
Composition for film formation
US-2016312062-A1 · Oct 27, 2016 · US
Method for dyeing keratinous substances starting from coloured oligomers and/or polymers resulting from meta-phenylenediamines, composition and dyeing agent
US-2016310383-A1 · Oct 27, 2016 · US
Solvent-resistant hole transport layers
US-2016308141-A1 · Oct 20, 2016 · US
Flame retardant PHT compositions
US-9453108-B2 · Sep 27, 2016 · US
Film-forming composition and embedding material
US-9434856-B2 · Sep 6, 2016 · US
Charge-transporting varnish
US-2016248017-A1 · Aug 25, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G73/026?
- CPC C08G73/026 is the Cooperative Patent Classification code for “Wholly aromatic polyamines.”
- How many patents are filed under CPC C08G73/026 (Wholly aromatic polyamines)?
- Our database includes 191 publications tagged with this CPC code.
- Is patent activity under CPC C08G73/026 growing?
- Publication counts under this code: 12 in 2024 vs 4 in 2025 (latest complete years).