Sealing a reduction assembly
US-12378616-B2 · Aug 5, 2025 · US
Protecting against oxidation · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C21B13/0093 |
| Official title | {Protecting against oxidation} |
| Display label | Protecting against oxidation |
| Total patents | 14 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 3 |
| 2024 | 2 |
| 2025 | 3 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12378616-B2 · Aug 5, 2025 · US
US-12286679-B2 · Apr 29, 2025 · US
US-2025011888-A1 · Jan 9, 2025 · US
US-12180554-B2 · Dec 31, 2024 · US
US-2024167110-A1 · May 23, 2024 · US
US-2022389528-A1 · Dec 8, 2022 · US
US-11427877-B2 · Aug 30, 2022 · US
US-2022259685-A1 · Aug 18, 2022 · US
US-2021246521-A1 · Aug 12, 2021 · US
US-10947050-B2 · Mar 16, 2021 · US
US-2020165068-A1 · May 28, 2020 · US
US-2019085420-A1 · Mar 21, 2019 · US
US-9365906-B2 · Jun 14, 2016 · US
US-9200339-B2 · Dec 1, 2015 · US