Semiconductor/m1/cd xm1-xs based photocatalyst for efficient hydrogen generation
US-2019366320-A1 · Dec 5, 2019 · US
Silver or gold
Silver or gold · 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 | B01J23/48 |
| Official title | Silver or gold |
| Display label | Silver or gold |
| Total patents | 101 |
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 | 18 |
| 2017 | 12 |
| 2018 | 12 |
| 2019 | 8 |
| 2020 | 10 |
| 2021 | 12 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Synthesis of colloidal precious metals nanoparticles with controlled size and morphology
US-10493433-B2 · Dec 3, 2019 · US
Photoconversion of light using metal supported atomic quantum clusters
US-10464047-B2 · Nov 5, 2019 · US
Gold nanoparticle superlattice embedded in porous silica and method for manufacturing same
US-2019255520-A1 · Aug 22, 2019 · US
Method for preparing metal catalyst supported in porous carbon support using plant
US-10367206-B2 · Jul 30, 2019 · US
Production of oil by pyrolysis of coal
US-10307750-B2 · Jun 4, 2019 · US
Immiscible composite catalyst for synthesis of hydrogen peroxide and methods for synthesizing of hydrogen peroxide using the same
US-2019111415-A1 · Apr 18, 2019 · US
Catalyst for oxidising ammonia
US-2019091677-A1 · Mar 28, 2019 · US
Production of Oil by Pyrolysis of Coal
US-2018311657-A1 · Nov 1, 2018 · US
Porous member and catalyst member
US-10105683-B2 · Oct 23, 2018 · US
Photocatalytic element
US-2018280559-A1 · Oct 4, 2018 · US
Method for preparing metal catalyst supported in porous carbon support using plant
US-2018254491-A1 · Sep 6, 2018 · US
Hydrogen production using hybrid photonic-electronic materials
US-2018243727-A1 · Aug 30, 2018 · US
Titanium-oxide catalyst and method of producing the same
US-10058847-B2 · Aug 28, 2018 · US
Method of producing Pt alloy catalyst using protective coating of carbon layer and ozone
US-10038200-B2 · Jul 31, 2018 · US
Carbon nanotube-metal particle composite and catalyst comprising the same
US-10029242-B2 · Jul 24, 2018 · US
Catalysts useful for biomass pyrolysis and bio-oil upgrading
US-10010881-B2 · Jul 3, 2018 · US
Method of producing pt alloy catalyst using protective coating of carbon layer and ozone
US-2018166698-A1 · Jun 14, 2018 · US
Catalyst system based on spherical activated carbon as a carrier and use thereof
US-9975109-B2 · May 22, 2018 · US
Method for producing hydrofluoroolefin
US-9902672-B2 · Feb 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J23/48?
- CPC B01J23/48 is the Cooperative Patent Classification code for “Silver or gold.”
- How many patents are filed under CPC B01J23/48 (Silver or gold)?
- Our database includes 101 publications tagged with this CPC code.
- Is patent activity under CPC B01J23/48 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).