Process for processing hard metal
US-2023392231-A1 · Dec 7, 2023 · US
Refining by treating with gases, e.g. gas flushing {also refining by means of a material generating gas in situ}
Refining by treating with gases, e.g. gas flushing {also refining by means of a material generating gas in situ} · 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 | C22B9/05 |
| Official title | Refining by treating with gases, e.g. gas flushing {also refining by means of a material generating gas in situ} |
| Display label | Refining by treating with gases, e.g. gas flushing {also refining by means of a material generating gas in situ} |
| Total patents | 87 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 14 |
| 2017 | 8 |
| 2018 | 9 |
| 2019 | 7 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 10 |
| 2024 | 15 |
| 2025 | 6 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnesium alloy, preparation method thereof, and process for preparing wheels by using the magnesium alloy
US-11827958-B2 · Nov 28, 2023 · US
Method for removing phosphorus and boron impurity from industrial silicon melt by secondary refining
US-11807538-B1 · Nov 7, 2023 · US
Gas injection device
US-2023349025-A1 · Nov 2, 2023 · US
Method for removing phosphorus and boron impurity from industrial silicon melt by secondary refining
US-2023348282-A1 · Nov 2, 2023 · US
Method for the recovery of metals from electronic waste
US-2023250509-A1 · Aug 10, 2023 · US
Device for trapping hydrogen
US-2022340999-A1 · Oct 27, 2022 · US
Optical cored wire immersion nozzle
US-11440081-B2 · Sep 13, 2022 · US
Production method of maraging steel
US-11427897-B2 · Aug 30, 2022 · US
Process for the recovery of lithium
US-2022017990-A1 · Jan 20, 2022 · US
System for salt removal from uranium metal
US-2021317548-A1 · Oct 14, 2021 · US
Method for controlling furnace, and analyzing device for carrying out this method
US-2021041173-A1 · Feb 11, 2021 · US
Method for purifying titanium material
US-2020239979-A1 · Jul 30, 2020 · US
Systems and methods for lowering the reduction of iron ore energy
US-10704121-B1 · Jul 7, 2020 · US
Fire refining of blister copper
US-10648060-B2 · May 12, 2020 · US
Ultrasonic degassing of molten metals
US-10640846-B2 · May 5, 2020 · US
Methods for making zirconium based alloys and bulk metallic glasses
US-10494698-B1 · Dec 3, 2019 · US
Scrap melting in anode furnace processes
US-10422020-B2 · Sep 24, 2019 · US
Overflow molten metal transfer pump with gas and flux injection
US-10415884-B2 · Sep 17, 2019 · US
Optical cored wire immersion nozzle
US-2019201968-A1 · Jul 4, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B9/05?
- CPC C22B9/05 is the Cooperative Patent Classification code for “Refining by treating with gases, e.g. gas flushing {also refining by means of a material generating gas in situ}.”
- How many patents are filed under CPC C22B9/05 (Refining by treating with gases, e.g. gas flushing {also refining by means of a material generating gas in situ})?
- Our database includes 87 publications tagged with this CPC code.
- Is patent activity under CPC C22B9/05 growing?
- Publication counts under this code: 15 in 2024 vs 6 in 2025 (latest complete years).