SiC POLYCRYSTAL MANUFACTURING METHOD
US-2025327210-A1 · Oct 23, 2025 · US
directly from the gas state
directly from the gas state · 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 | C30B28/12 |
| Official title | directly from the gas state |
| Display label | directly from the gas state |
| Total patents | 31 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 2 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 5 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Two-Dimensional Materials, Their Composite Thin Films, and the Formation Thereof
US-2025290194-A1 · Sep 18, 2025 · US
Thermally stable thin-film reflective coating and coating process
US-2025123000-A1 · Apr 17, 2025 · US
Method for manufacturing a non-deformable p-sic wafer
US-2025125140-A1 · Apr 17, 2025 · US
Neutron-generating target and method for producing the same
US-2025059680-A1 · Feb 20, 2025 · US
Quantitative textured polycrystalline coatings
US-2025051960-A1 · Feb 13, 2025 · US
Thermally stable thin-film reflective coating and coating process
US-12215865-B2 · Feb 4, 2025 · US
Quantitative textured polycrystalline coatings
US-12163248-B2 · Dec 10, 2024 · US
Nitride semiconductor template, method for manufacturing nitride semiconductor template, and method for manufacturing nitride semiconductor free-standing substrate
US-12129572-B2 · Oct 29, 2024 · US
Magneto-Optic Thin Film, Optical Isolator, and Method for Manufacturing Magneto-Optic Thin Film
US-2024248333-A1 · Jul 25, 2024 · US
Piezoelectric film, piezoelectric stack, piezoelectric element, and method for producing piezoelectric stack
US-2024206342-A1 · Jun 20, 2024 · US
Manufacturing method of silicon carbide ingot
US-11859306-B2 · Jan 2, 2024 · US
SiC POLYCRYSTAL MANUFACTURING METHOD
US-2023357955-A1 · Nov 9, 2023 · US
Thermally stable thin-film reflective coating and coating process
US-2023313993-A1 · Oct 5, 2023 · US
Low-dimensional perovskite-structured metal halide and preparation method and application thereof
US-2023235219-A1 · Jul 27, 2023 · US
Rutile phase tiox deposition with preferred crystal orientations
US-2023112967-A1 · Apr 13, 2023 · US
Quantitative textured polycrystalline coatings
US-2022235487-A1 · Jul 28, 2022 · US
Manufacturing method of silicon carbide ingot
US-2022049372-A1 · Feb 17, 2022 · US
Component and semiconductor manufacturing device
US-2021381094-A1 · Dec 9, 2021 · US
Component and semiconductor manufacturing device
US-11111573-B2 · Sep 7, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C30B28/12?
- CPC C30B28/12 is the Cooperative Patent Classification code for “directly from the gas state.”
- How many patents are filed under CPC C30B28/12 (directly from the gas state)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC C30B28/12 growing?
- Publication counts under this code: 5 in 2024 vs 7 in 2025 (latest complete years).