Method of making waterproof magnesium oxychloride refractory brick by fly ash from municipal solid waste incineration
US-2020399182-A1 · Dec 24, 2020 · US
Sulfides, tellurides or selenides
Sulfides, tellurides or selenides · 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 | C04B2235/446 |
| Official title | Sulfides, tellurides or selenides |
| Display label | Sulfides, tellurides or selenides |
| Total patents | 106 |
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 | 12 |
| 2017 | 11 |
| 2018 | 8 |
| 2019 | 12 |
| 2020 | 8 |
| 2021 | 16 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 6 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Density enhancement methods and compositions
US-10864577-B2 · Dec 15, 2020 · US
Mineral treatment process
US-2020306729-A1 · Oct 1, 2020 · US
Solid State Catholyte or Electrolyte for Battery Using LiaMPbSc (M=Si, Ge, and/or Sn)
US-2020251741-A1 · Aug 6, 2020 · US
3D printing method and powder mixture for 3D printing
US-10668531-B2 · Jun 2, 2020 · US
Refractory ceramic product, batch for the manufacture such a product and method for manufacturing such a product
US-2020039885-A1 · Feb 6, 2020 · US
Solid electrolyte and all-solid secondary battery
US-2020010369-A1 · Jan 9, 2020 · US
Density enhancement methods and compositions
US-2019308244-A1 · Oct 10, 2019 · US
SOLID STATE CATHOLYTE OR ELECTROLYTE FOR BATTERY USING LiaMPbSc (M=Si, Ge, and/or Sn)
US-2019280302-A1 · Sep 12, 2019 · US
Method for preparing phase-separated lead telluride-lead sulfide nanopowder using solution synthesis and phase-separated lead telluride-lead sulfide nanopowder prepared thereby
US-10399148-B2 · Sep 3, 2019 · US
Nitrogen-doped sulfide-based solid electrolyte for all-solid batteries
US-2019198917-A1 · Jun 27, 2019 · US
Thermoelectric composite material comprising mxene and method for manufacturing the same
US-2019189884-A1 · Jun 20, 2019 · US
Sintered polycrystalline cubic boron nitride body
US-10308559-B2 · Jun 4, 2019 · US
Method for producing a powdered precursor material, powdered precursor material and use thereof
US-10287496-B2 · May 14, 2019 · US
Method of manufacturing sulfide-based solid electrolyte through wet process
US-10290896-B2 · May 14, 2019 · US
Insulation material and method of manufacturing same
US-10253917-B2 · Apr 9, 2019 · US
Density enhancement methods and compositions
US-10207327-B2 · Feb 19, 2019 · US
Metal-carbonaceous brush and method of manufacturing the same
US-10199789-B2 · Feb 5, 2019 · US
Quantum-dot-in-perovskite solids
US-10181538-B2 · Jan 15, 2019 · US
SOLID STATE CATHOLYTE OR ELECTROLYTE FOR BATTERY USING LiaMPbSc (M=Si, Ge, and/or Sn)
US-2018342735-A1 · Nov 29, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B2235/446?
- CPC C04B2235/446 is the Cooperative Patent Classification code for “Sulfides, tellurides or selenides.”
- How many patents are filed under CPC C04B2235/446 (Sulfides, tellurides or selenides)?
- Our database includes 106 publications tagged with this CPC code.
- Is patent activity under CPC C04B2235/446 growing?
- Publication counts under this code: 6 in 2024 vs 6 in 2025 (latest complete years).