Electrochromic element and method for manufacturing same
US-2024168351-A1 · May 23, 2024 · US
Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy · 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 | C09K9/00 |
| Official title | Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy |
| Display label | Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy |
| Total patents | 233 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 9 |
| 2017 | 22 |
| 2018 | 16 |
| 2019 | 19 |
| 2020 | 31 |
| 2021 | 26 |
| 2022 | 29 |
| 2023 | 24 |
| 2024 | 24 |
| 2025 | 24 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Intermediate film for laminated glass having thermochromic properties, laminated glass, and laminated glass system
US-2019358937-A1 · Nov 28, 2019 · US
Security mark, authentication method therefor, authentication device and manufacturing method as well as security mark ink and manufacturing method therefor
US-10449798-B2 · Oct 22, 2019 · US
Charged particle detection material, and charged particle detection film and charged particle detection liquid using the same
US-2019241803-A1 · Aug 8, 2019 · US
Synthetic material for detecting ultraviolet radiation and/or x-radiation
US-2019106620-A1 · Apr 11, 2019 · US
Electrochromic device
US-2018373108-A1 · Dec 27, 2018 · US
Method for preparing thermally imaged opacifying elements
US-10145061-B1 · Dec 4, 2018 · US
Method for manufacturing vanadium dioxide-containing particles
US-2018339915-A1 · Nov 29, 2018 · US
Method for preparing thermally imaged opacifying elements
US-2018327965-A1 · Nov 15, 2018 · US
Process for the selective decoration of a timepiece component
US-2018317616-A1 · Nov 8, 2018 · US
Electrochromic device
US-10120257-B2 · Nov 6, 2018 · US
Chemical containers having a source authentication and methods of making and using the same
US-2018313702-A1 · Nov 1, 2018 · US
Electrochromic lithium nickel group 4 mixed metal oxides
US-10095079-B2 · Oct 9, 2018 · US
Electrochromic element
US-10054834-B2 · Aug 21, 2018 · US
Photochromic articles containing a polyoxometalate and methods of making and using same
US-2018194994-A1 · Jul 12, 2018 · US
Single-junction organic photovoltaic devices having high open-circuit voltages and applications thereof
US-2018175313-A1 · Jun 21, 2018 · US
Thermoluminescent and superparamagnetic composite particle and marking comprising same
US-2018155564-A1 · Jun 7, 2018 · US
Photochromic articles containing a polyoxometalate and methods of making same
US-9976076-B2 · May 22, 2018 · US
Photochromic articles containing polyoxometalate derivatives and methods of making same
US-9976077-B2 · May 22, 2018 · US
Electrochromic nanocomposite films
US-9939662-B2 · Apr 10, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K9/00?
- CPC C09K9/00 is the Cooperative Patent Classification code for “Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy.”
- How many patents are filed under CPC C09K9/00 (Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy)?
- Our database includes 233 publications tagged with this CPC code.
- Is patent activity under CPC C09K9/00 growing?
- Publication counts under this code: 24 in 2024 vs 24 in 2025 (latest complete years).