Method for the production of a collector alloy comprising precious metal or of pure silver
US-12359283-B2 · Jul 15, 2025 · US
Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C)
Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C) · 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 | C22B4/00 |
| Official title | Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C) |
| Display label | Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C) |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ultrafast flash joule heating synthesis methods and systems for performing same
US-2023374623-A1 · Nov 23, 2023 · US
Microwave-mechanical fluidization mining system and mining method for metal mines
US-11773720-B2 · Oct 3, 2023 · US
Microwave-mechanical fluidization mining system and mining method for metal mines
US-2023243259-A1 · Aug 3, 2023 · US
Method for the production of a collector alloy comprising precious metal or of pure silver
US-2023078641-A1 · Mar 16, 2023 · US
System, apparatus, and process for leaching metal and storing thermal energy during metal extraction
US-11390933-B2 · Jul 19, 2022 · US
System apparatus and process for leaching metal and storing thermal energy during metal extraction
US-10907238-B2 · Feb 2, 2021 · US
Magnetite-based sintered ore and method of producing same
US-10724115-B2 · Jul 28, 2020 · US
Apparatus and a method for treatment of mined material with electromagnetic radiation
US-10597750-B2 · Mar 24, 2020 · US
Method for recovering valuable metal
US-10294546-B2 · May 21, 2019 · US
Optimized ore processing using molten salts for leaching and thermal energy source
US-2018245177-A1 · Aug 30, 2018 · US
Magnetite-based sintered ore and method of producing same
US-2018002779-A1 · Jan 4, 2018 · US
Apparatus and method for stripping solder metals during the recycling of waste electrical and electronic equipment
US-9731368-B2 · Aug 15, 2017 · US
Apparatus and method for stripping solder metals during the recycling of waste electrical and electronic equipment
US-9649712-B2 · May 16, 2017 · US
Method for processing slags of non-ferrous metallurgy
US-9435005-B2 · Sep 6, 2016 · US
Material processing systems and methods
US-2016244861-A1 · Aug 25, 2016 · US
Apparatus and method for stripping solder metals during the recycling of waste electrical and electronic equipment
US-9221114-B2 · Dec 29, 2015 · US
Apparatus and method for stripping solder metals during the recycling of waste electrical and electronic equipment
US-2015322545-A1 · Nov 12, 2015 · US
Apparatus and method for stripping solder metals during the recycling of waste electrical and electronic equipment
US-2015322540-A1 · Nov 12, 2015 · US
Apparatus and method for stripping solder metals during the recycling of waste electrical and electronic equipment
US-2015321279-A1 · Nov 12, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B4/00?
- CPC C22B4/00 is the Cooperative Patent Classification code for “Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C).”
- How many patents are filed under CPC C22B4/00 (Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C))?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC C22B4/00 growing?
- Publication counts under this code: 4 in 2023 vs 1 in 2025 (latest complete years).