Device and system for laying and inserting variable holes in irrigation tubing
US-2025178061-A1 · Jun 5, 2025 · US
using rotatable work or tool holders
using rotatable work or tool holders · 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 | B21D28/36 |
| Official title | using rotatable work or tool holders |
| Display label | using rotatable work or tool holders |
| Total patents | 39 |
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 | 5 |
| 2017 | 4 |
| 2018 | 8 |
| 2019 | 8 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Manual universal punching/welding apparatus and method
US-12162089-B2 · Dec 10, 2024 · US
Workpiece transport device
US-2023256499-A1 · Aug 17, 2023 · US
Manual universal punching/welding apparatus and method
US-2023001505-A1 · Jan 5, 2023 · US
Composite working machine
US-2022203475-A1 · Jun 30, 2022 · US
Multi-dimple orifice disc for a fluid injector, and methods for constructing and utilizing same
US-11253875-B2 · Feb 22, 2022 · US
Rotary installation tools for clinch fasteners
US-2021331227-A1 · Oct 28, 2021 · US
Punching mold device capable of rotating a workpiece and punching method using thereof
US-11084081-B2 · Aug 10, 2021 · US
Reorientable rotatable processing tool
US-10792722-B2 · Oct 6, 2020 · US
Punch press
US-10507508-B2 · Dec 17, 2019 · US
Punching Mold Device Capable Of Rotating A Workpiece And Punching Method Using Thereof
US-2019374993-A1 · Dec 12, 2019 · US
Die-pressing punch capable of adjusting initial load of coil spring in accordance with material of workpiece, die-pressing die set, and beveling method
US-10471491-B2 · Nov 12, 2019 · US
Die-pressing die having dust collection passage at peripheral edge portion of roller unit
US-10471492-B2 · Nov 12, 2019 · US
Method and system for producing ring-shaped member for vehicle, and synchronizer ring
US-10369612-B2 · Aug 6, 2019 · US
Tools and methods for handling workpieces
US-10350666-B2 · Jul 16, 2019 · US
Die-pressing punch capable of adjusting initial load of coil spring in accordance with material of workpiece, die-pressing die set, and beveling method
US-2019168276-A1 · Jun 6, 2019 · US
Die-pressing die having dust collection passage at peripheral edge portion of roller unit
US-2019160508-A1 · May 30, 2019 · US
Punching system
US-10099331-B2 · Oct 16, 2018 · US
Method and system for producing ring-shaped member for vehicle, and synchronizer ring
US-2018214925-A1 · Aug 2, 2018 · US
Punching system
US-2018141177-A1 · May 24, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21D28/36?
- CPC B21D28/36 is the Cooperative Patent Classification code for “using rotatable work or tool holders.”
- How many patents are filed under CPC B21D28/36 (using rotatable work or tool holders)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC B21D28/36 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).