Method for comprehensively processing noble lead
US-10982299-B2 · Apr 20, 2021 · US
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Refining
Refining · 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 | C22B13/06 |
| Official title | Refining |
| Display label | Refining |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2016 | 4 |
| 2017 | 3 |
| 2020 | 1 |
| 2021 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for comprehensively processing noble lead
US-2020208238-A1 · Jul 2, 2020 · US
Isotope displacement refining process for producing low alpha materials
US-9708689-B2 · Jul 18, 2017 · US
Method of refining solder materials
US-9666547-B2 · May 30, 2017 · US
Method for treating lead anode slime
US-9650695-B2 · May 16, 2017 · US
Isotope displacement refining process for producing low alpha materials
US-2016298208-A1 · Oct 13, 2016 · US
Method for treating lead anode slime
US-2016281193-A1 · Sep 29, 2016 · US
Process for producing high-purity tin
US-9340850-B2 · May 17, 2016 · US
Apparatus and methods for purifying lead
US-9234258-B2 · Jan 12, 2016 · US