Cutting elements, and related earth-boring tools, supporting substrates, and methods
US-2019368278-A1 · Dec 5, 2019 · US
Copper
Copper · 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 | C04B2235/407 |
| Official title | Copper |
| Display label | Copper |
| Total patents | 150 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 13 |
| 2017 | 16 |
| 2018 | 13 |
| 2019 | 22 |
| 2020 | 15 |
| 2021 | 12 |
| 2022 | 14 |
| 2023 | 10 |
| 2024 | 12 |
| 2025 | 11 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Porous honeycomb heat storage structure
US-2019339024-A1 · Nov 7, 2019 · US
Method for manufacturing magnesium-based thermoelectric conversion material, method for manufacturing magnesium-based thermoelectric conversion element, magnesium-based thermoelectric conversion material, magnesium-based thermoelectric conversion element, and thermoelectric conversion device
US-10468577-B2 · Nov 5, 2019 · US
Discharge plasma sintering method for manufacturing single-walled carbon nanotube reinforced metal matrix composite and composite material produced thereby
US-2019276915-A1 · Sep 12, 2019 · US
GRAIN BOUNDARY ENHANCED UN AND U3Si2 PELLETS WITH IMPROVED OXIDATION RESISTANCE
US-2019237206-A1 · Aug 1, 2019 · US
Piezoelectric ceramic, method for the production thereof and electroceramic component comprising the piezoceramic
US-2019140162-A1 · May 9, 2019 · US
Composite brake disks with an integrated heat sink, methods for manufacturing the same, and methods for producing encapsulated heat sink material
US-10253832-B2 · Apr 9, 2019 · US
Ceramic material having a positive slowly release effect, method for manufacturing the same, and system comprising the same
US-2018368416-A1 · Dec 27, 2018 · US
Friction material
US-10151367-B2 · Dec 11, 2018 · US
Method for coating metal nanoparticles on oxide ceramic powder surface
US-10112874-B2 · Oct 30, 2018 · US
Method of Producing a Body Comprising Porous Alpha Silicon Carbide and the Body Produced by the Method
US-2018257994-A1 · Sep 13, 2018 · US
SiC CRUCIBLE, SiC SINTERED BODY, AND METHOD OF PRODUCING SiC SINGLE CRYSTAL
US-2018257993-A1 · Sep 13, 2018 · US
Metal nitride material for thermistor, method for producing same, and film-type thermistor sensor
US-10054497-B2 · Aug 21, 2018 · US
Thermoelectric materials based on tetrahedrite structure for thermoelectric devices
US-2018233646-A1 · Aug 16, 2018 · US
Negative electrode active material for lithium ion secondary battery
US-10044033-B2 · Aug 7, 2018 · US
Diamond like carbon (dlc) coating for ethanol-blended fuel injector applications
US-2018216593-A1 · Aug 2, 2018 · US
Hard material, sintered material, tool including sintered material, manufacturing method of hard material, and manufacturing method of sintered material
US-10023499-B2 · Jul 17, 2018 · US
Cutting elements and methods for fabricating diamond compacts and cutting elements with functionalized nanoparticles
US-2018185987-A1 · Jul 5, 2018 · US
Friction material
US-2018119764-A1 · May 3, 2018 · US
Cutting elements and methods for fabricating diamond compacts and cutting elements with functionalized nanoparticles
US-9931735-B2 · Apr 3, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B2235/407?
- CPC C04B2235/407 is the Cooperative Patent Classification code for “Copper.”
- How many patents are filed under CPC C04B2235/407 (Copper)?
- Our database includes 150 publications tagged with this CPC code.
- Is patent activity under CPC C04B2235/407 growing?
- Publication counts under this code: 12 in 2024 vs 11 in 2025 (latest complete years).