Method for the synthesis of metal nanoparticles in aqueous environment without the use of shape directing agents
US-2018361482-A1 · Dec 20, 2018 · US
Noble metals, i.e. Ag Au, Ir, Os, Pd, Pt, Rh, Ru
Noble metals, i.e. Ag Au, Ir, Os, Pd, Pt, Rh, Ru · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B22F2301/25 |
| Official title | Noble metals, i.e. Ag Au, Ir, Os, Pd, Pt, Rh, Ru |
| Display label | Noble metals, i.e. Ag Au, Ir, Os, Pd, Pt, Rh, Ru |
| Total patents | 178 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 15 |
| 2017 | 21 |
| 2018 | 16 |
| 2019 | 18 |
| 2020 | 27 |
| 2021 | 17 |
| 2022 | 17 |
| 2023 | 12 |
| 2024 | 12 |
| 2025 | 13 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Nanostructured composite metal hydrides
US-2018333774-A1 · Nov 22, 2018 · US
Electrodes containing iridium nanoparticles for the electrolytic production of oxygen from water
US-10125429-B2 · Nov 13, 2018 · US
Metal paste for gas sensor electrode formation
US-10106691-B2 · Oct 23, 2018 · US
Excavated Nanoframes with Three-Dimensional Electrocatalytic Surfaces
US-2018281060-A1 · Oct 4, 2018 · US
Method of preparing shape-controlled platinum based alloys
US-10086434-B2 · Oct 2, 2018 · US
Process for producing noble-metal powder
US-2018264555-A1 · Sep 20, 2018 · US
Method for manufacturing metal nanoparticles, method for manufacturing metal nanoparticle-loaded carrier, and metal nanoparticle-loaded carrier
US-2018248199-A1 · Aug 30, 2018 · US
Extreme creep resistant nano-crystalline metallic materials
US-2018229308-A1 · Aug 16, 2018 · US
Polyhedral metal nanocages with well-defined facets and ultrathin walls and methods of making and uses thereof
US-2018214943-A1 · Aug 2, 2018 · US
Noble metal-based electrocatalyst and method of treating a noble metal-based electrocatalyst
US-10038199-B2 · Jul 31, 2018 · US
Surface-treated ceramic powder and applications thereof
US-2018161870-A1 · Jun 14, 2018 · US
Quantum dot and method for manufacturing the same
US-2018127649-A1 · May 10, 2018 · US
Alloy microparticles and method for producing same, alloy microparticle cluster, catalyst, and method for producing same
US-9962683-B2 · May 8, 2018 · US
Component with a ceramic base body having a conduit and a fastening element and method
US-2018075952-A1 · Mar 15, 2018 · US
Method and device for producing a three-dimensional object with an improved surface quality
US-2018050423-A1 · Feb 22, 2018 · US
Metal paste for gas sensor electrode formation
US-2017328860-A1 · Nov 16, 2017 · US
Method of preparing shape-controlled platinum based alloys
US-2017282253-A1 · Oct 5, 2017 · US
Alloy microparticles and method for producing same, alloy microparticle cluster, catalyst, and method for producing same
US-2017259247-A1 · Sep 14, 2017 · US
Metal paste for gas sensor electrode formation
US-9758680-B2 · Sep 12, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B22F2301/25?
- CPC B22F2301/25 is the Cooperative Patent Classification code for “Noble metals, i.e. Ag Au, Ir, Os, Pd, Pt, Rh, Ru.”
- How many patents are filed under CPC B22F2301/25 (Noble metals, i.e. Ag Au, Ir, Os, Pd, Pt, Rh, Ru)?
- Our database includes 178 publications tagged with this CPC code.
- Is patent activity under CPC B22F2301/25 growing?
- Publication counts under this code: 12 in 2024 vs 13 in 2025 (latest complete years).