Ultra-thin, ultra-low density films for euv lithography
US-2023393456-A1 · Dec 7, 2023 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C01B2202/04 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 79 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 9 |
| 2019 | 8 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 11 |
| 2024 | 8 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Films of multiwall, few wall, and single wall carbon nanotube mixtures
US-11820659-B2 · Nov 21, 2023 · US
Ultra-thin, ultra-low density films for EUV lithography
US-11740548-B2 · Aug 29, 2023 · US
Method for preparing self-floating transparent nano ultrathin film
US-2023191718-A1 · Jun 22, 2023 · US
Ultra-thin, ultra-low density films for euv lithography
US-2023095318-A1 · Mar 30, 2023 · US
Carbon nanotube composite material and method for producing carbon nanotube composite material
US-11414321-B2 · Aug 16, 2022 · US
Anode electrode compositions for battery applications
US-2022181625-A1 · Jun 9, 2022 · US
Method of producing carbon nanotubes in fluidized bed reactor
US-11352259-B2 · Jun 7, 2022 · US
Methods for characterizing nanotube formulations for nanotube fabrics with controlled surface roughness and degree of rafting
US-11332861-B2 · May 17, 2022 · US
Films of multiwall, few wall, and single wall carbon nanotube mixtures
US-2022144641-A1 · May 12, 2022 · US
Anode electrode compositions and aqueous dispersions for battery applications
US-2022131156-A1 · Apr 28, 2022 · US
Methods for nondestructive dispersing of carbon nanomaterials in water
US-11208571-B2 · Dec 28, 2021 · US
Ultra-long chiral carbon nanotube, method for preparing the same, application thereof, and high-performance photoelectric device
US-2021198109-A1 · Jul 1, 2021 · US
Method for efficiently dispersing carbon nanotube
US-2021163294-A1 · Jun 3, 2021 · US
Process and apparatus for carbon nanotube formation
US-2021107790-A1 · Apr 15, 2021 · US
Carbon nanotube composite material and method for producing carbon nanotube composite material
US-2021032100-A1 · Feb 4, 2021 · US
Methods for Characterizing Nanotube Formulations for Nanotube Fabrics with Controlled Surface Roughness and Degree of Rafting
US-2020362491-A1 · Nov 19, 2020 · US
Carbon nanotube composite material and method for producing carbon nanotube composite material
US-10836633-B2 · Nov 17, 2020 · US
Carbon nanotube fiber manufacturing apparatus and method
US-2020308002-A1 · Oct 1, 2020 · US
Bio buckypaper synthesized with fish scales
US-10689257-B1 · Jun 23, 2020 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C01B2202/04?
- CPC C01B2202/04 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C01B2202/04 (Chemistry & Metallurgy)?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC C01B2202/04 growing?
- Publication counts under this code: 8 in 2024 vs 4 in 2025 (latest complete years).