Squarylium compounds for use in display devices
US-11422403-B2 · Aug 23, 2022 · US
This page is not indexed by search engines while we improve data quality.
Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 · 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 | C07D403/00 |
| Official title | Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 |
| Display label | Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 |
| Total patents | 18 |
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 | 1 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Optically functional film
US-2021181394-A1 · Jun 17, 2021 · US
Polarizing film with adhesive layer, and liquid crystal display device
US-2021179896-A1 · Jun 17, 2021 · US
Optically functional film
US-2020386930-A1 · Dec 10, 2020 · US
Squarylium compounds for use in display devices
US-2020369889-A1 · Nov 26, 2020 · US
Circularly polarizing plate
US-2020355962-A1 · Nov 12, 2020 · US
Optical layered body
US-2020292877-A1 · Sep 17, 2020 · US
Organic electroluminescent element and electronic device
US-2019081249-A1 · Mar 14, 2019 · US
Hole transport compositions and related devices and methods (I)
US-10217938-B2 · Feb 26, 2019 · US
Acrylamide-based copolymers, terpolymers, and use as hydrate inhibitors
US-10189986-B2 · Jan 29, 2019 · US
Triazole compound
US-2018203175-A1 · Jul 19, 2018 · US
Resin composition
US-10012777-B2 · Jul 3, 2018 · US
Methods for preparation of quinazoline derivatives
US-9988357-B2 · Jun 5, 2018 · US
Acrylamide-based copolymers, terpolymers, and use as hydrate inhibitors
US-2017321050-A1 · Nov 9, 2017 · US
Methods for preparation of quinazoline derivatives
US-2017190672-A1 · Jul 6, 2017 · US
Hole transport compositions and related devices and methods (i)
US-2017186953-A1 · Jun 29, 2017 · US
Hole transport compositions and related devices and methods (I)
US-9577194-B2 · Feb 21, 2017 · US
Resin composition, triazole compound, optical film, polarizing plate, optical lens, circularly polarizing plate and image display device
US-2015338563-A1 · Nov 26, 2015 · US