Deformation compensation method for growing thick galium nitride on silicon substrate
US-12584242-B2 · Mar 24, 2026 · US
Quartz
Quartz · 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 | C30B29/18 |
| Official title | Quartz |
| Display label | Quartz |
| Total patents | 49 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Material comprising a layer of self-assembled, one-dimensional zno microcrystals
US-2025101631-A1 · Mar 27, 2025 · US
Method for improved silicon deposition
US-2025079159-A1 · Mar 6, 2025 · US
Piezoelectric epitaxially grown pseudosubstrate, use and process for preparing such a pseudosubstrate
US-2024426022-A1 · Dec 26, 2024 · US
Preparation method for lithium-sulfur battery based on large-area thick-film controllable textured photonic crystal
US-12142752-B2 · Nov 12, 2024 · US
Deformation compensation method for growing thick galium nitride on silicon substrate
US-2024263348-A1 · Aug 8, 2024 · US
Composite substrate, piezoelectric device, and method for manufacturing composite substrate
US-12003227-B2 · Jun 4, 2024 · US
Silicon and silica nanostructures and method of making silicon and silica nanostructures
US-11807571-B2 · Nov 7, 2023 · US
Crystal for flow cytometry with dual laser beams
US-11513055-B2 · Nov 29, 2022 · US
Preparation method for lithium-sulfur battery based on large-area thick- film controllable textured photonic crystal
US-2022336789-A1 · Oct 20, 2022 · US
Silicon and silica nanostructures and method of making silicon and silica nanostructures
US-2022098094-A1 · Mar 31, 2022 · US
Silicon and silica nanostructures and method of making silicon and silica nanostructures
US-11225434-B2 · Jan 18, 2022 · US
Melt-growth of single-crystal alloy semiconductor structures and semiconductor assemblies incorporating such structures
US-11198951-B2 · Dec 14, 2021 · US
Composite substrate, piezoelectric device, and method for manufacturing composite substrate
US-2021320641-A1 · Oct 14, 2021 · US
Joined body of piezoelectric material substrate and support substrate
US-11082025-B2 · Aug 3, 2021 · US
Joined body of piezoelectric material substrate and support substrate
US-11082026-B2 · Aug 3, 2021 · US
Bonded substrate, surface acoustic wave element, surface acoustic wave element device, and method for manufacturing bonded substrate
US-2021108338-A1 · Apr 15, 2021 · US
Joined body of piezoelectric material substrate and support substrate
US-2021067129-A1 · Mar 4, 2021 · US
Joined body of piezoelectric material substrate and support substrate
US-2021067130-A1 · Mar 4, 2021 · US
Crystal for flow cytometry with dual laser beams
US-2020408664-A1 · Dec 31, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C30B29/18?
- CPC C30B29/18 is the Cooperative Patent Classification code for “Quartz.”
- How many patents are filed under CPC C30B29/18 (Quartz)?
- Our database includes 49 publications tagged with this CPC code.
- Is patent activity under CPC C30B29/18 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).