Residual liquid amount detection method and detection apparatus for the same, residual molten material amount detection method and detection apparatus for the same, and method for operating vertical furnace
US-12577629-B2 · Mar 17, 2026 · US
for the level of the molten metal (B22D11/181 and B22D11/201 take precedence; level indicators in general G01F23/00) · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B22D2/003 |
| Official title | {for the level of the molten metal (B22D11/181 and B22D11/201 take precedence; level indicators in general G01F23/00)} |
| Display label | for the level of the molten metal (B22D11/181 and B22D11/201 take precedence; level indicators in general G01F23/00) |
| Total patents | 24 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 2 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12577629-B2 · Mar 17, 2026 · US
US-2025216362-A1 · Jul 3, 2025 · US
US-12311434-B2 · May 27, 2025 · US
US-2025010361-A1 · Jan 9, 2025 · US
US-2024226995-A9 · Jul 11, 2024 · US
US-2024132982-A1 · Apr 25, 2024 · US
US-2024131577-A1 · Apr 25, 2024 · US
US-2023286037-A1 · Sep 14, 2023 · US
US-11370019-B2 · Jun 28, 2022 · US
US-2021379649-A1 · Dec 9, 2021 · US
US-10710152-B2 · Jul 14, 2020 · US
US-10473510-B2 · Nov 12, 2019 · US
US-10322450-B2 · Jun 18, 2019 · US
US-2019113378-A1 · Apr 18, 2019 · US
US-9829385-B2 · Nov 28, 2017 · US
US-2017326626-A1 · Nov 16, 2017 · US
US-2016346836-A1 · Dec 1, 2016 · US
US-9417322-B2 · Aug 16, 2016 · US
US-9417321-B2 · Aug 16, 2016 · US
US-9399252-B2 · Jul 26, 2016 · US