Easily-crushable copper powder and manufacturing method therefor
US-2021346950-A1 · Nov 11, 2021 · US
using gaseous reductors
using gaseous reductors · 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 | B22F9/26 |
| Official title | using gaseous reductors |
| Display label | using gaseous reductors |
| Total patents | 73 |
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 | 6 |
| 2016 | 10 |
| 2017 | 8 |
| 2018 | 13 |
| 2019 | 14 |
| 2020 | 8 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 3 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Nickel powder manufacturing method
US-2020384542-A1 · Dec 10, 2020 · US
Method for producing nickel powder
US-2020376564-A1 · Dec 3, 2020 · US
Method for producing nickel powder
US-2020338641-A1 · Oct 29, 2020 · US
Magnetically tunable photonic crystals based on anisotropic nanostructures
US-10796849-B2 · Oct 6, 2020 · US
Method for producing high density nickel powder
US-10766072-B2 · Sep 8, 2020 · US
Metal Material Sintering Densification and Grain Size Control Method
US-2020198013-A1 · Jun 25, 2020 · US
Production method for fine metal particles, production method for fuel cell electrode catalyst, supported fine metal particle catalyst, and fuel cell electrode catalyst
US-10693146-B2 · Jun 23, 2020 · US
Method for producing nickel powder
US-10549351-B2 · Feb 4, 2020 · US
Method for producing nickel powder
US-10518332-B2 · Dec 31, 2019 · US
Method for producing nickel powder having low carbon concentration and low sulfur concentration
US-10500644-B2 · Dec 10, 2019 · US
Scalable shape- and size-controlled synthesis of metal nano-alloys
US-10493533-B2 · Dec 3, 2019 · US
Method for producing nickel powder
US-10471514-B2 · Nov 12, 2019 · US
Nickel powder production method and nickel powder production device
US-2019308249-A1 · Oct 10, 2019 · US
Method for producing nickel powder
US-10434577-B2 · Oct 8, 2019 · US
Methods of forming spherical metallic particles
US-2019217395-A1 · Jul 18, 2019 · US
Method for producing nickel powder
US-2019210114-A1 · Jul 11, 2019 · US
Silver nanowires, methods of making silver nanowires, core-shell nanostructures, methods of making core-shell nanostructures, core-frame nanostructures, methods of making core-frame nanostructures
US-10286382-B2 · May 14, 2019 · US
Method for producing nickel powder
US-10220446-B2 · Mar 5, 2019 · US
Method for producing seed crystal of cobalt powder
US-2019061006-A1 · Feb 28, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B22F9/26?
- CPC B22F9/26 is the Cooperative Patent Classification code for “using gaseous reductors.”
- How many patents are filed under CPC B22F9/26 (using gaseous reductors)?
- Our database includes 73 publications tagged with this CPC code.
- Is patent activity under CPC B22F9/26 growing?
- Publication counts under this code: 3 in 2023 vs 3 in 2025 (latest complete years).