Composite wavelength converter
US-12389725-B2 · Aug 12, 2025 · US
by contacting with diffusion materials in the liquid state
by contacting with diffusion materials in the liquid 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 | C30B31/04 |
| Official title | by contacting with diffusion materials in the liquid state |
| Display label | by contacting with diffusion materials in the liquid state |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for producing single crystal silicon wafers for insulated gate bipolar transistors
US-2024240355-A1 · Jul 18, 2024 · US
Method for preparing monocrystalline silicon and solar cell and photovoltaic module with monocrystalline silicon
US-2023250549-A1 · Aug 10, 2023 · US
Composite Wavelength Converter
US-2022393080-A1 · Dec 8, 2022 · US
Boron-doped copper catalysts for efficient conversion of CO2 to multi-carbon hydrocarbons and associated methods
US-11390959-B2 · Jul 19, 2022 · US
Method for preparing monocrystalline silicon and solar cell and photovoltaic module with monocrystalline silicon
US-2021404085-A1 · Dec 30, 2021 · US
Boron-doped copper catalysts for efficient conversion of co2 to multi-carbon hydrocarbons and associated methods
US-2021292924-A1 · Sep 23, 2021 · US
Synthesis and processing of pure and NV nanodiamonds and other nanostructures for quantum computing and magnetic sensing applications
US-10240251-B2 · Mar 26, 2019 · US
Method for controlling gallium content in gadolinium-gallium garnet scintillators
US-10197685-B2 · Feb 5, 2019 · US
Doping media for the local doping of silicon wafers
US-10134942-B2 · Nov 20, 2018 · US
Screen-printable boron doping paste with simultaneous inhibition of phosphorus diffusion in co-diffusion processes
US-2018122640-A1 · May 3, 2018 · US
Semiconductor structure and method
US-9945048-B2 · Apr 17, 2018 · US
Silicon single crystal wafer, manufacturing method thereof and method of detecting defects
US-9917022-B2 · Mar 13, 2018 · US
Sol-gel-based printable doping media which inhibit parasitic diffusion for the local doping of silicon wafers
US-2018062022-A1 · Mar 1, 2018 · US
Synthesis and processing of pure and nv nanodiamonds and other nanostructures for quantum computing and magnetic sensing applications
US-2017373153-A1 · Dec 28, 2017 · US
Synthesis and processing of pure and nv nanodiamonds and other nanostructures for quantum computing and magnetic sensing applications
US-2017370019-A1 · Dec 28, 2017 · US
Ultra-high density single-walled carbon nanotube horizontal array and its controllable preparation method
US-2017247256-A1 · Aug 31, 2017 · US
Silicon carbide substrate, semiconductor device, and methods for manufacturing them
US-9722028-B2 · Aug 1, 2017 · US
Method For Controlling Gallium Content in Gadolinium-Gallium Garnet Scintillators
US-2017153335-A1 · Jun 1, 2017 · US
Silicon carbide substrate, semiconductor device, and methods for manufacturing them
US-2016343808-A1 · Nov 24, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C30B31/04?
- CPC C30B31/04 is the Cooperative Patent Classification code for “by contacting with diffusion materials in the liquid state.”
- How many patents are filed under CPC C30B31/04 (by contacting with diffusion materials in the liquid state)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC C30B31/04 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).