Methods for controlling the pitch of self-assembled ionic liquid crystal (ILC) structures
US-12398324-B1 · Aug 26, 2025 · US
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containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen or sulfur, e.g. silicon, metals
containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen or sulfur, e.g. silicon, metals · 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 | C09K19/40 |
| Official title | containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen or sulfur, e.g. silicon, metals |
| Display label | containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen or sulfur, e.g. silicon, metals |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2023 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Charge transportation in nanostructured functional selenium-containing liquid crystalline materials
US-11814346-B1 · Nov 14, 2023 · US
Electrolytes for electrochemical generator
US-11613520-B2 · Mar 28, 2023 · US
Liquid crystal mixture and temperature-responsive infrared reflection device
US-11168256-B2 · Nov 9, 2021 · US
Liquid crystalline medium
US-10982150-B2 · Apr 20, 2021 · US
Thiadiazoloquinoxaline derivatives
US-10738240-B2 · Aug 11, 2020 · US
Electrolytes for electrochemical generator
US-2020239413-A1 · Jul 30, 2020 · US
Liquid crystal mixture and temperature-responsive infrared reflection device
US-2020123445-A1 · Apr 23, 2020 · US
Polymer, composition, optical film, and liquid crystal display device
US-10487165-B2 · Nov 26, 2019 · US
Liquid crystalline medium
US-2019241811-A1 · Aug 8, 2019 · US
Semiconducting polymers
US-10155774-B2 · Dec 18, 2018 · US
Thiadiazoloquinoxaline derivatives
US-2018142153-A1 · May 24, 2018 · US
Birefringent polymer film with negative optical dispersion
US-RE46426-E · Jun 6, 2017 · US
Polysilsesquioxane-dendron liquid crystals and method for preparing the same
US-9670412-B2 · Jun 6, 2017 · US
Polymer, composition, optical film, and liquid crystal display device
US-2017121441-A1 · May 4, 2017 · US
Compound, liquid crystal composition, polymer material and film
US-9512362-B2 · Dec 6, 2016 · US
Semiconducting polymers
US-9365585-B2 · Jun 14, 2016 · US
Polysilsesquioxane-dendron liquid crystals and method for preparing the same
US-2016002537-A1 · Jan 7, 2016 · US
Semiconducting polymers
US-2015353575-A1 · Dec 10, 2015 · US
Smectic A compositions for use in optical devices
US-8999195-B2 · Apr 7, 2015 · US