Carburized component and method for manufacturing same
US-10767252-B2 · Sep 8, 2020 · US
under reduced pressure or vacuum
under reduced pressure or vacuum · 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 | C21D1/773 |
| Official title | under reduced pressure or vacuum |
| Display label | under reduced pressure or vacuum |
| Total patents | 110 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 14 |
| 2017 | 14 |
| 2018 | 11 |
| 2019 | 11 |
| 2020 | 13 |
| 2021 | 8 |
| 2022 | 11 |
| 2023 | 9 |
| 2024 | 10 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing soft magnetic member
US-2020224302-A1 · Jul 16, 2020 · US
Heat treatment device
US-10690416-B2 · Jun 23, 2020 · US
Stainless steel and method of manufacturing the same
US-10619950-B2 · Apr 14, 2020 · US
Soft magnetic flattened powder and method for producing the same
US-10586637-B2 · Mar 10, 2020 · US
Method of producing carburizing forging steel material
US-10519536-B2 · Dec 31, 2019 · US
Magnetic Elements and Methods for the Additive Manufacture Thereof
US-2019366435-A1 · Dec 5, 2019 · US
Method of continuously annealing a strip
US-2019276913-A1 · Sep 12, 2019 · US
Methods for producing titanium and titanium alloy articles
US-10407745-B2 · Sep 10, 2019 · US
Rolling slide member, rolling bearing using same, and method for manufacturing rolling slide member
US-2019249718-A1 · Aug 15, 2019 · US
Concurrent flow of activating gas in low temperature carburization
US-2019226074-A1 · Jul 25, 2019 · US
Apparatus for continuous annealing of strip and method for continuous annealing of same
US-10358691-B2 · Jul 23, 2019 · US
Heat treatment facility
US-2019127836-A1 · May 2, 2019 · US
Conveyance device for heat treatment device and heat treatment device
US-10260814-B2 · Apr 16, 2019 · US
Concurrent flow of activating gas in low temperature carburization
US-10246766-B2 · Apr 2, 2019 · US
Gas delivery system for high pressure processing chamber
US-10179941-B1 · Jan 15, 2019 · US
Methods for producing titanium and titanium alloy articles
US-2018347003-A1 · Dec 6, 2018 · US
Hot extrusion die tool and method of making same
US-10130982-B2 · Nov 20, 2018 · US
Gas quenching method
US-2018327874-A1 · Nov 15, 2018 · US
Method of producing carburizing forging steel material
US-2018312956-A1 · Nov 1, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D1/773?
- CPC C21D1/773 is the Cooperative Patent Classification code for “under reduced pressure or vacuum.”
- How many patents are filed under CPC C21D1/773 (under reduced pressure or vacuum)?
- Our database includes 110 publications tagged with this CPC code.
- Is patent activity under CPC C21D1/773 growing?
- Publication counts under this code: 10 in 2024 vs 4 in 2025 (latest complete years).