Metal back plate and manufacturing process thereof, backlight module and electronic device
US-11966074-B2 · Apr 23, 2024 · US
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Salt baths
Salt baths · 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 | C21D1/46 |
| Official title | Salt baths |
| Display label | Salt baths |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat treatment method for steel product, steel product and bearing ring
US-2023147672-A1 · May 11, 2023 · US
Method of manufacturing cam piece for continuously variable valve duration and cam piece manufactured therefrom
US-2022364195-A1 · Nov 17, 2022 · US
Method of manufacturing cam piece for continuously variable valve duration and cam piece manufactured therefrom
US-11441204-B2 · Sep 13, 2022 · US
Method for producing surface-hardened material
US-11332818-B2 · May 17, 2022 · US
Metal back plate and manufacturing process thereof, backlight module and electronic device
US-2022099881-A1 · Mar 31, 2022 · US
Method for producing surface-hardened material
US-2021214833-A1 · Jul 15, 2021 · US
Sliding member and method for producing same
US-11007572-B2 · May 18, 2021 · US
Alloy steel composition and producing method thereof
US-10920296-B2 · Feb 16, 2021 · US
Post-fabrication forging treatment
US-2020299793-A1 · Sep 24, 2020 · US
Method of manufacturing cam piece for continuously variable valve duration and cam piece manufactured therefrom
US-2020181726-A1 · Jun 11, 2020 · US
Method of treatment of a running ferrous alloy sheet and treatment line for its implementation
US-10590501-B2 · Mar 17, 2020 · US
Thermal treatment process of a steel sheet and device for its implementation
US-10428401-B2 · Oct 1, 2019 · US
Excellent workability steel wire rod and method for production of same
US-10221464-B2 · Mar 5, 2019 · US
Steel wire for non-heat treated machine part and non-heat treated machine part
US-2019024222-A1 · Jan 24, 2019 · US
Method of modifying a physical property of an endodontic instrument
US-10182882-B1 · Jan 22, 2019 · US
Sliding member and method for producing same
US-2018236553-A1 · Aug 23, 2018 · US
Alloy steel composition and produciing method thereof
US-2017342521-A1 · Nov 30, 2017 · US
Excellent workability steel wire rod and method for production of same
US-2017101696-A1 · Apr 13, 2017 · US
Super bainite steel and method for manufacturing it
US-2016304985-A1 · Oct 20, 2016 · US