Process for heavy metal removal from iron- and steelmaking flue dust
US-2026043110-A1 · Feb 12, 2026 · US
from metallic residues or scraps
from metallic residues or scraps · 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 | C22B19/30 |
| Official title | from metallic residues or scraps |
| Display label | from metallic residues or scraps |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 2 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dezincing method and dezincing apparatus
US-2025382681-A1 · Dec 18, 2025 · US
Sustainable method for recycling smelting works dusts and sludges to produce iron-containing, heavy-metal-depleted reclaimed materials with recovery of lead and zinc
US-12448666-B2 · Oct 21, 2025 · US
Aluminum sheet materials, and production methods and alloy compositions therefor with reduced energy consumption and co2 emissions
US-2025154635-A1 · May 15, 2025 · US
Zinc recovery method
US-2025154676-A1 · May 15, 2025 · US
Method of recycling mixed alloy scrap parts
US-2025115976-A1 · Apr 10, 2025 · US
Reclamation of metal from coked catalyst
US-2025066201-A1 · Feb 27, 2025 · US
Hydrometallurgical process for waste materials of the zinc and steel industries
US-2025034677-A1 · Jan 30, 2025 · US
Process for recovering non-ferrous metals from industrial mineral residues
US-12157928-B2 · Dec 3, 2024 · US
Method, apparatus and system for processing a composite waste source
US-2024247335-A1 · Jul 25, 2024 · US
Pyro-metallurgical process in a rotary kiln
US-12018345-B2 · Jun 25, 2024 · US
Zinc recovery method
US-2024044029-A1 · Feb 8, 2024 · US
Method, apparatus and system for processing a composite waste source
US-11884992-B2 · Jan 30, 2024 · US
Method of separating and recovering bromine from printed circuit board incineration ash by two-step process
US-11858822-B2 · Jan 2, 2024 · US
Sustainable method for recycling smelting works dusts and sludges to produce iron-containing, heavy-metal-depleted reclaimed materials with recovery of lead and zinc
US-2023295765-A1 · Sep 21, 2023 · US
Method for disposal of waste printed circuit board thermal cracking slag and smelting soot
US-11692238-B2 · Jul 4, 2023 · US
Process and system for plasma-induced selective extraction and recovery of species from a matrix
US-11692239-B2 · Jul 4, 2023 · US
A method of separating and recovering bromine from printed circuit board incineration ash by two-step process
US-2023192488-A1 · Jun 22, 2023 · US
Alloy treatment method
US-2023167526-A1 · Jun 1, 2023 · US
Method for treating alloy
US-2023160035-A1 · May 25, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B19/30?
- CPC C22B19/30 is the Cooperative Patent Classification code for “from metallic residues or scraps.”
- How many patents are filed under CPC C22B19/30 (from metallic residues or scraps)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC C22B19/30 growing?
- Publication counts under this code: 6 in 2024 vs 7 in 2025 (latest complete years).