Multi-Functional BN-BN Composite
US-2015376069-A1 · Dec 31, 2015 · US
Silicon
Silicon · 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 | C04B2235/428 |
| Official title | Silicon |
| Display label | Silicon |
| Total patents | 889 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 63 |
| 2016 | 77 |
| 2017 | 74 |
| 2018 | 77 |
| 2019 | 73 |
| 2020 | 97 |
| 2021 | 81 |
| 2022 | 72 |
| 2023 | 84 |
| 2024 | 94 |
| 2025 | 73 |
| 2026 | 24 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Solid state catholytes and electrolytes for energy storage devices
US-2015380766-A1 · Dec 31, 2015 · US
Electrically conductive thin films
US-2015380122-A1 · Dec 31, 2015 · US
Refractory material and casting nozzle
US-9221099-B2 · Dec 29, 2015 · US
Magnesia carbon brick
US-2015368159-A1 · Dec 24, 2015 · US
Magnesia carbon brick
US-2015353426-A1 · Dec 10, 2015 · US
Honeycomb structure
US-9188040-B2 · Nov 17, 2015 · US
Dense composite material, method for producing the same, and component for semiconductor production equipment
US-9188397-B2 · Nov 17, 2015 · US
Negative electrode active material for lithium ion secondary battery, method for producing the same, negative electrode, and battery
US-2015325853-A1 · Nov 12, 2015 · US
Solid state catholytes and electrolytes for energy storage devices
US-9172114-B2 · Oct 27, 2015 · US
Fine particle collecting filter
US-9168478-B2 · Oct 27, 2015 · US
Sliding seal member
US-2015291905-A1 · Oct 15, 2015 · US
Carbon fiber-reinforced silicon carbide composite material and method of preparing the same
US-9156741-B2 · Oct 13, 2015 · US
Formation of voids within components formed from porous substrates
US-2015284297-A1 · Oct 8, 2015 · US
Porous body, honeycomb filter, method for producing porous body, and method for producing honeycomb filter
US-2015273380-A1 · Oct 1, 2015 · US
Honeycomb structure
US-2015275725-A1 · Oct 1, 2015 · US
Manufacturing method of honeycomb structure
US-2015274602-A1 · Oct 1, 2015 · US
Honeycomb structure
US-2015266779-A1 · Sep 24, 2015 · US
Method for manufacturing a part made of cmc
US-2015251959-A1 · Sep 10, 2015 · US
Refractoryceramic composites and methods of making
US-9120705-B2 · Sep 1, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B2235/428?
- CPC C04B2235/428 is the Cooperative Patent Classification code for “Silicon.”
- How many patents are filed under CPC C04B2235/428 (Silicon)?
- Our database includes 889 publications tagged with this CPC code.
- Is patent activity under CPC C04B2235/428 growing?
- Publication counts under this code: 94 in 2024 vs 73 in 2025 (latest complete years).