Fluorite synthetic stones and method of making fluorite synthetic stones
US-2023357075-A1 · Nov 9, 2023 · US
Dephosphorising; Desulfurising
Dephosphorising; Desulfurising · 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 | C21C7/064 |
| Official title | Dephosphorising; Desulfurising |
| Display label | Dephosphorising; Desulfurising |
| Total patents | 117 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 6 |
| 2020 | 7 |
| 2021 | 8 |
| 2022 | 7 |
| 2023 | 10 |
| 2024 | 14 |
| 2025 | 34 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cross-Correlation Of Metrics For Anomaly Root Cause Identification
US-2023359519-A9 · Nov 9, 2023 · US
High nickel alloy excellent in high welding temperature cracking resistance
US-2023349027-A1 · Nov 2, 2023 · US
Method for manufacturing low-phosphorus molten steel
US-2023313330-A1 · Oct 5, 2023 · US
Method for producing high nitrogen steel by duplex melting process of pressurized ladle refining and pressurized electroslag remelting
US-11732337-B2 · Aug 22, 2023 · US
Method of making steel by deeply dephosphorization in hot metal tank and decarburization using semi-steel with nearly zero phosphorus load in converter
US-11674192-B2 · Jun 13, 2023 · US
Process for smelting steel for ultrafine carborundum wire
US-2023175093-A1 · Jun 8, 2023 · US
Method of making steel by deeply dephosphorization in hot metal tank and decarburization using semi-steel with nearly zero phosphorus load in converter
US-2023121123-A1 · Apr 20, 2023 · US
Hot-stamped member and steel sheet for hot stamping
US-2023028362-A1 · Jan 26, 2023 · US
Method for dephosphorization of hot metal, and refining agent
US-11542566-B2 · Jan 3, 2023 · US
Cross-Correlation Of Metrics For Anomaly Root Cause Identification
US-2022325392-A1 · Oct 13, 2022 · US
Molten iron dephosphorization method
US-2022259686-A1 · Aug 18, 2022 · US
Method for produing high nitrogen steel by duplex melting process of pressurized ladle refining and pressurized electroslag remelting
US-2022228243-A1 · Jul 21, 2022 · US
Cross-correlation of metrics for anomaly root cause identification
US-11392446-B2 · Jul 19, 2022 · US
Method and system for predicting addition amount of slagging lime during lf refining, and lf refining method
US-2022145413-A1 · May 12, 2022 · US
Method and system for predicting addition amount of slagging lime during LF refining, and LF refining method
US-11326217-B1 · May 10, 2022 · US
Dephosphorizing flux and method for preparing same
US-11225695-B2 · Jan 18, 2022 · US
Method for smelting low nitrogen steel using electric furnace
US-2021355555-A1 · Nov 18, 2021 · US
Production apparatus and method for electric arc furnace steelmaking with fully continuous ultra-short process
US-2021355554-A1 · Nov 18, 2021 · US
Production apparatus and method for electric arc furnace steelmaking with fully continuous ultra-short process
US-11174524-B1 · Nov 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21C7/064?
- CPC C21C7/064 is the Cooperative Patent Classification code for “Dephosphorising; Desulfurising.”
- How many patents are filed under CPC C21C7/064 (Dephosphorising; Desulfurising)?
- Our database includes 117 publications tagged with this CPC code.
- Is patent activity under CPC C21C7/064 growing?
- Publication counts under this code: 14 in 2024 vs 34 in 2025 (latest complete years).