Continuous annealer for wire
US-2024093327-A1 · Mar 21, 2024 · US
with induction heating
with induction heating · 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 | C21D9/60 |
| Official title | with induction heating |
| Display label | with induction heating |
| Total patents | 103 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 9 |
| 2021 | 6 |
| 2022 | 11 |
| 2023 | 8 |
| 2024 | 14 |
| 2025 | 9 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Energy-efficient production of a ferritic hot-rolled strip in an integrated casting-rolling plant
US-2022186340-A1 · Jun 16, 2022 · US
Apparatus and method for rapidly heating cold-rolled strip steel
US-11352680-B2 · Jun 7, 2022 · US
Fast response heaters and associated control systems used in combination with metal treatment furnaces
US-11268765-B2 · Mar 8, 2022 · US
Method and device for producing a continuous strip-shaped composite material
US-11185943-B2 · Nov 30, 2021 · US
Casting-rolling installation and method for treating a workpiece by means of such an installation
US-2021331222-A1 · Oct 28, 2021 · US
Device and method for manufacturing metal clad plates in way of continuous casting and rolling
US-2021262057-A1 · Aug 26, 2021 · US
Wire rod and steel wire for spring, having enhanced toughness and corrosion fatigue properties, and respective manufacturing methods therefor
US-2021180152-A1 · Jun 17, 2021 · US
Method for producing a metal strip in a cast-rolling installation
US-11000888-B2 · May 11, 2021 · US
Metal strip induction heating method and induction heating apparatus
US-2021017624-A1 · Jan 21, 2021 · US
Method for producing hot-dip galvanized steel sheet and continuous hot-dip galvanizing apparatus
US-2020377964-A1 · Dec 3, 2020 · US
Methods of Cooling an Electrically Conductive Sheet During Transverse Flux Induction Heat Treatment
US-2020305242-A1 · Sep 24, 2020 · US
Apparatus and method for rapidly heating cold-rolled strip steel
US-2020291501-A1 · Sep 17, 2020 · US
Fast response heaters and associated control systems used in combination with metal treatment furnaces
US-2020232706-A1 · Jul 23, 2020 · US
Fast response heaters and associated control systems used in combination with metal treatment furnaces
US-10648738-B2 · May 12, 2020 · US
Method of continuously annealing a strip
US-10604820-B2 · Mar 31, 2020 · US
Method for producing a metal strip in a cast-rolling installation
US-2020061685-A1 · Feb 27, 2020 · US
Induction heating device for metal strip
US-10563282-B2 · Feb 18, 2020 · US
Induction heating device for metal strip
US-10568166-B2 · Feb 18, 2020 · US
Method and device for producing a continuous strip-shaped composite material
US-2019366471-A1 · Dec 5, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D9/60?
- CPC C21D9/60 is the Cooperative Patent Classification code for “with induction heating.”
- How many patents are filed under CPC C21D9/60 (with induction heating)?
- Our database includes 103 publications tagged with this CPC code.
- Is patent activity under CPC C21D9/60 growing?
- Publication counts under this code: 14 in 2024 vs 9 in 2025 (latest complete years).