Liquid-crystalline medium
US-2019390112-A1 · Dec 26, 2019 · US
the chain containing carbon-to-carbon double bonds, e.g. stilbenes
the chain containing carbon-to-carbon double bonds, e.g. stilbenes · 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 | C09K19/16 |
| Official title | the chain containing carbon-to-carbon double bonds, e.g. stilbenes |
| Display label | the chain containing carbon-to-carbon double bonds, e.g. stilbenes |
| Total patents | 113 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 7 |
| 2017 | 15 |
| 2018 | 13 |
| 2019 | 19 |
| 2020 | 9 |
| 2021 | 9 |
| 2022 | 7 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid-crystalline medium
US-2019330530-A1 · Oct 31, 2019 · US
Liquid-crystal display element
US-10421906-B2 · Sep 24, 2019 · US
Liquid crystal composition and liquid crystal display device
US-10385272-B2 · Aug 20, 2019 · US
Liquid crystal composition and liquid crystal display
US-2019241807-A1 · Aug 8, 2019 · US
Liquid crystal compound having polyfluoro-2-butenoxy group, liquid crystal composition and liquid crystal display device
US-10358602-B2 · Jul 23, 2019 · US
Nematic liquid crystal composition and liquid crystal display element using same
US-10351772-B2 · Jul 16, 2019 · US
Spontaneous orientation aid for liquid crystal composition, compound suitable for said spontaneous orientation aid, liquid crystal composition, and liquid crystal display element
US-2019203122-A1 · Jul 4, 2019 · US
Liquid-crystal medium
US-2019185748-A1 · Jun 20, 2019 · US
Liquid-crystalline medium and high-frequency components comprising same
US-10323188-B2 · Jun 18, 2019 · US
Liquid crystalline media having homeotropic alignment
US-10294426-B2 · May 21, 2019 · US
Liquid crystal display device, and method for producing liquid crystal display device
US-2019144753-A1 · May 16, 2019 · US
Liquid crystal composition and liquid crystal display device including the same
US-2019048262-A1 · Feb 14, 2019 · US
Nematic liquid crystal composition and liquid crystal display device using the same
US-10113115-B2 · Oct 30, 2018 · US
Liquid-crystalline media
US-10072209-B2 · Sep 11, 2018 · US
Liquid-crystalline media
US-2018230382-A1 · Aug 16, 2018 · US
Liquid crystalline media having homeotropic alignment
US-2018208848-A1 · Jul 26, 2018 · US
Liquid crystalline epoxy compound with terminal mesogen connected by flexible linkage and method for preparing the same
US-2018201835-A1 · Jul 19, 2018 · US
Liquid crystal composition and a liquid crystal display including the same
US-2018179444-A1 · Jun 28, 2018 · US
Liquid crystal composition and liquid crystal display device using the same
US-2018171234-A1 · Jun 21, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K19/16?
- CPC C09K19/16 is the Cooperative Patent Classification code for “the chain containing carbon-to-carbon double bonds, e.g. stilbenes.”
- How many patents are filed under CPC C09K19/16 (the chain containing carbon-to-carbon double bonds, e.g. stilbenes)?
- Our database includes 113 publications tagged with this CPC code.
- Is patent activity under CPC C09K19/16 growing?
- Publication counts under this code: 6 in 2024 vs 8 in 2025 (latest complete years).