Extraction of selected platinum-group metals from supported catalyst
US-11427887-B2 · Aug 30, 2022 · US
by gases
by gases · 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 | C22B5/12 |
| Official title | by gases |
| Display label | by gases |
| Total patents | 97 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 7 |
| 2017 | 9 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 7 |
| 2022 | 15 |
| 2023 | 16 |
| 2024 | 7 |
| 2025 | 10 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for recovering pgm
US-2022259697-A1 · Aug 18, 2022 · US
Rare earth extraction apparatus and method of use thereof
US-2022259699-A1 · Aug 18, 2022 · US
Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2022162725-A1 · May 26, 2022 · US
Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2022162064-A1 · May 26, 2022 · US
Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2022162726-A1 · May 26, 2022 · US
Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2022162076-A1 · May 26, 2022 · US
Method for breaking down a mixture of solid particles comprising ruthenium
US-2022119915-A1 · Apr 21, 2022 · US
Bio-reduction of metal ores integrated with biomass pyrolysis
US-2022098700-A1 · Mar 31, 2022 · US
Bio-reduction of metal ores integrated with biomass pyrolysis
US-2022098685-A1 · Mar 31, 2022 · US
Bio-reduction of metal ores integrated with biomass pyrolysis
US-2022098701-A1 · Mar 31, 2022 · US
Methods of forming a metal alloy
US-2022049368-A1 · Feb 17, 2022 · US
Process for the recovery of lithium
US-2022017990-A1 · Jan 20, 2022 · US
Method and apparatus for recovering copper, bronze and lead from mixture of copper oxide, tin oxide and lead oxide
US-2022002837-A1 · Jan 6, 2022 · US
Method of recovery of nickel and cobalt
US-2021269894-A1 · Sep 2, 2021 · US
Devices, methods, and systems for combined ore reduction and metals stripping
US-2021140010-A1 · May 13, 2021 · US
Method for recovering nickel and cobalt from nickel, iron, and cobalt-containing raw material
US-2021130926-A1 · May 6, 2021 · US
Method for comprehensively processing noble lead
US-10982299-B2 · Apr 20, 2021 · US
Methods of producing a titanium alloy product
US-10907239-B1 · Feb 2, 2021 · US
Rare earth extraction apparatus and method of use thereof
US-2021025025-A1 · Jan 28, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B5/12?
- CPC C22B5/12 is the Cooperative Patent Classification code for “by gases.”
- How many patents are filed under CPC C22B5/12 (by gases)?
- Our database includes 97 publications tagged with this CPC code.
- Is patent activity under CPC C22B5/12 growing?
- Publication counts under this code: 7 in 2024 vs 10 in 2025 (latest complete years).