Method for manufacturing alloy ribbon piece
US-11535906-B2 · Dec 27, 2022 · US
Combined heat-treatments not provided for above
Combined heat-treatments not provided for above · 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 | C21D1/78 |
| Official title | Combined heat-treatments not provided for above |
| Display label | Combined heat-treatments not provided for above |
| Total patents | 134 |
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 | 3 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 6 |
| 2020 | 9 |
| 2021 | 12 |
| 2022 | 26 |
| 2023 | 19 |
| 2024 | 18 |
| 2025 | 29 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cold rolled and annealed steel sheet and method of manufacturing the same
US-11530459-B2 · Dec 20, 2022 · US
High strength steel sheet and method for manufacturing the same
US-2022396855-A1 · Dec 15, 2022 · US
High strength steel sheet and method for manufacturing the same
US-2022396847-A1 · Dec 15, 2022 · US
Bearing part
US-2022389960-A1 · Dec 8, 2022 · US
Copper-coated steel wire and stranded wire
US-11505856-B2 · Nov 22, 2022 · US
High strength steel sheet and method for manufacturing the same
US-2022364196-A1 · Nov 17, 2022 · US
Steel material suitable for use in sour environment
US-11492688-B2 · Nov 8, 2022 · US
High-strength steel sheet and method for producing same
US-2022349020-A1 · Nov 3, 2022 · US
High-strength steel sheet and production method therefor
US-11466350-B2 · Oct 11, 2022 · US
Steel plate for pressure vessel with excellent cryogenic lateral expansion and manufacturing method therefor
US-2022290266-A1 · Sep 15, 2022 · US
Resistance spot welded joint and a process for producing a resistance spot welded joint
US-2022290265-A1 · Sep 15, 2022 · US
High strength and high formability steel sheet and manufacturing method
US-11434541-B2 · Sep 6, 2022 · US
High strength steel sheet and method for manufacturing the same
US-2022267876-A1 · Aug 25, 2022 · US
Duplex stainless steel and method for manufacturing same, and duplex stainless steel pipe
US-2022228231-A1 · Jul 21, 2022 · US
Water-based alkaline composition for forming an insulating layer of an annealing separator, coated soft magnetic alloy and method for producing a coated soft magnetic strip
US-2022199304-A1 · Jun 23, 2022 · US
Bearing component and method of manufacturing thereof
US-2022196070-A1 · Jun 23, 2022 · US
Black ferrite-based stainless steel sheet
US-11326236-B2 · May 10, 2022 · US
Hot dip galvanized steel sheet and method for producing same
US-2022119908-A1 · Apr 21, 2022 · US
Hot dip galvanized steel sheet and method for producing same
US-2022064771-A1 · Mar 3, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D1/78?
- CPC C21D1/78 is the Cooperative Patent Classification code for “Combined heat-treatments not provided for above.”
- How many patents are filed under CPC C21D1/78 (Combined heat-treatments not provided for above)?
- Our database includes 134 publications tagged with this CPC code.
- Is patent activity under CPC C21D1/78 growing?
- Publication counts under this code: 18 in 2024 vs 29 in 2025 (latest complete years).