Die assembly for notching electrode plate of secondary battery and method of manufacturing die assembly
US-2026084334-A1 · Mar 26, 2026 · US
Centering the work; Positioning the tools
Centering the work; Positioning the tools · 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 | B21D28/04 |
| Official title | Centering the work; Positioning the tools |
| Display label | Centering the work; Positioning the tools |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 7 |
| 2020 | 2 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 2 |
| 2025 | 8 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Secondary battery electrode plate manufacturing apparatus including die parallelism monitoring device and secondary battery electrode plate manufacturing method
US-2026011708-A1 · Jan 8, 2026 · US
Electrode plate notching device
US-2025385291-A1 · Dec 18, 2025 · US
Readjustment device and readjustment method for a plate-like workpiece in a processing machine
US-12485468-B2 · Dec 2, 2025 · US
Button key
US-2025353068-A1 · Nov 20, 2025 · US
Electrode plate manufacturing device and electrode plate manufacturing method
US-2025303460-A1 · Oct 2, 2025 · US
Electrode plate processing apparatus and method
US-2025144695-A1 · May 8, 2025 · US
Secondary battery case manufacturing device
US-2025135522-A1 · May 1, 2025 · US
Manufacturing method of plate member
US-12251747-B2 · Mar 18, 2025 · US
Processing apparatus, method of manufacturing metallic member, and metallic member
US-2025018456-A1 · Jan 16, 2025 · US
Electrode substrate notching device and gap setting method
US-2024391123-A1 · Nov 28, 2024 · US
Method for offset measure compensation
US-12055911-B2 · Aug 6, 2024 · US
Respiratory Feedback For Improved Exercise Performance
US-2023329636-A1 · Oct 19, 2023 · US
Readjustment device and readjustment method for a plate-like workpiece in a processing machine
US-2023330736-A1 · Oct 19, 2023 · US
Method for manufacturing stator core
US-2023208260-A1 · Jun 29, 2023 · US
Adjustment device of punching device and adjustment method of punching device
US-11673178-B2 · Jun 13, 2023 · US
Manufacturing method of plate member
US-2023123829-A1 · Apr 20, 2023 · US
Device for manufacturing laminated iron core and method for manufacturing laminated iron core
US-11524327-B2 · Dec 13, 2022 · US
Method for offset measure compensation
US-2022187782-A1 · Jun 16, 2022 · US
Machining planar workpieces
US-11241727-B2 · Feb 8, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21D28/04?
- CPC B21D28/04 is the Cooperative Patent Classification code for “Centering the work; Positioning the tools.”
- How many patents are filed under CPC B21D28/04 (Centering the work; Positioning the tools)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC B21D28/04 growing?
- Publication counts under this code: 2 in 2024 vs 8 in 2025 (latest complete years).