Insulating die plate, forging press and ceramic insulating body
US-2023398595-A1 · Dec 14, 2023 · US
Special design or construction
Special design or construction · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B21J9/02 |
| Official title | Special design or construction |
| Display label | Special design or construction |
| Total patents | 80 |
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 | 11 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 6 |
| 2022 | 10 |
| 2023 | 13 |
| 2024 | 9 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnesium alloy, preparation method thereof, and process for preparing wheels by using the magnesium alloy
US-11827958-B2 · Nov 28, 2023 · US
Crosshead for use as an upper and/or lower beam in a press
US-2023339012-A1 · Oct 26, 2023 · US
Press hardening method
US-11773464-B2 · Oct 3, 2023 · US
Release agent spraying device and forming apparatus
US-11633751-B2 · Apr 25, 2023 · US
Bearing unit manufacturing device and bearing unit manufacturing method
US-11619268-B2 · Apr 4, 2023 · US
Method of Producing a Magnesium Alloy Wheel Hub
US-2022410252-A1 · Dec 29, 2022 · US
Forging tool
US-11529671-B2 · Dec 20, 2022 · US
Stamping press forming of outer diameter helical splines
US-2022339692-A1 · Oct 27, 2022 · US
Forging device and forging method for outer joint member of constant-velocity universal joint
US-11478845-B2 · Oct 25, 2022 · US
Forging roll device
US-11453042-B2 · Sep 27, 2022 · US
Equipment and method for forming a front toothing on an inner ring of a wheel hub
US-2022241841-A1 · Aug 4, 2022 · US
Staking assembly manufacturing method, hub unit bearing manufacturing method, and vehicle manufacturing method
US-2022143679-A1 · May 12, 2022 · US
Method and apparatus for forging gear
US-11305334-B2 · Apr 19, 2022 · US
Method for producing hot forged material
US-11278953-B2 · Mar 22, 2022 · US
A press hardening method
US-2022042129-A1 · Feb 10, 2022 · US
Apparatus and method for manufacturing rack bar
US-2021379648-A1 · Dec 9, 2021 · US
Forging device and forging method for outer joint member of constant-velocity universal joint
US-2021370387-A1 · Dec 2, 2021 · US
Method and device for manufacturing bearing unit
US-11162538-B2 · Nov 2, 2021 · US
Release agent spraying device and forming apparatus
US-2021060596-A1 · Mar 4, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21J9/02?
- CPC B21J9/02 is the Cooperative Patent Classification code for “Special design or construction.”
- How many patents are filed under CPC B21J9/02 (Special design or construction)?
- Our database includes 80 publications tagged with this CPC code.
- Is patent activity under CPC B21J9/02 growing?
- Publication counts under this code: 9 in 2024 vs 2 in 2025 (latest complete years).