Liquid crystal compound containing difluormethoxy bridge, composition and application thereof
US-2017349830-A1 · Dec 7, 2017 · US
the structure containing one or more specific, optionally substituted ring or ring systems
the structure containing one or more specific, optionally substituted ring or ring systems · 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 | C09K19/0403 |
| Official title | {the structure containing one or more specific, optionally substituted ring or ring systems} |
| Display label | the structure containing one or more specific, optionally substituted ring or ring systems |
| Total patents | 186 |
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 | 24 |
| 2016 | 23 |
| 2017 | 24 |
| 2018 | 17 |
| 2019 | 27 |
| 2020 | 12 |
| 2021 | 13 |
| 2022 | 16 |
| 2023 | 14 |
| 2024 | 11 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Alkenyl ether compound and a liquid crystal composition using the same
US-9822301-B2 · Nov 21, 2017 · US
Liquid-crystalline medium and liquid-crystal display comprising the same
US-2017292072-A1 · Oct 12, 2017 · US
Polymerizable composition and film using same
US-2017292075-A1 · Oct 12, 2017 · US
Liquid crystal display device and liquid crystal composition used therefor
US-9783735-B2 · Oct 10, 2017 · US
Substituted polyphenyls
US-2017240812-A1 · Aug 24, 2017 · US
Liquid crystal composition, liquid crystal display device, and liquid crystal display
US-9650572-B2 · May 16, 2017 · US
Polymerizable compounds and the use thereof in liquid-crystal displays
US-2017121606-A1 · May 4, 2017 · US
Liquid crystal display device
US-2017114277-A1 · Apr 27, 2017 · US
Liquid crystal composition and liquid crystal display comprising the same
US-2017101580-A1 · Apr 13, 2017 · US
Birefringent lens material for stereoscopic image display device and method for producing birefringent lens for stereoscopic image display device
US-9599829-B2 · Mar 21, 2017 · US
Liquid-crystalline medium
US-2017044438-A1 · Feb 16, 2017 · US
Liquid-crystalline medium
US-2017037316-A1 · Feb 9, 2017 · US
An alkenyl ether compound and a liquid crystal composition using the same
US-2016326433-A1 · Nov 10, 2016 · US
Device for regulating the passage of light
US-2016319592-A1 · Nov 3, 2016 · US
Liquid crystal display device and liquid crystal composition used therefor
US-2016304783-A1 · Oct 20, 2016 · US
Liquid crystal composition and liquid crystal display element using same
US-9464230-B2 · Oct 11, 2016 · US
Liquid crystal display device
US-2016289560-A1 · Oct 6, 2016 · US
Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound
US-2016280672-A1 · Sep 29, 2016 · US
Liquid crystal display device
US-2016272889-A1 · Sep 22, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K19/0403?
- CPC C09K19/0403 is the Cooperative Patent Classification code for “the structure containing one or more specific, optionally substituted ring or ring systems.”
- How many patents are filed under CPC C09K19/0403 (the structure containing one or more specific, optionally substituted ring or ring systems)?
- Our database includes 186 publications tagged with this CPC code.
- Is patent activity under CPC C09K19/0403 growing?
- Publication counts under this code: 11 in 2024 vs 5 in 2025 (latest complete years).