Method of manufacturing armature
US-2025119041-A1 · Apr 10, 2025 · US
Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form (making helically seamed tubing B21C37/12)
Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form (making helically seamed tubing B21C37/12) · 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 | B21D11/06 |
| Official title | Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form (making helically seamed tubing B21C37/12) |
| Display label | Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form (making helically seamed tubing B21C37/12) |
| Total patents | 34 |
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 | 4 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 11 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Roller molding method for producing a spiral structure
US-11973383-B2 · Apr 30, 2024 · US
Entwined tubular arrangements for heat exchangers and counterflow heat transfer systems
US-11897015-B2 · Feb 13, 2024 · US
Heat exchange system and method of assembly
US-11859903-B2 · Jan 2, 2024 · US
Directed decoupling between bundle and core tube in wound heat exchangers
US-11841194-B2 · Dec 12, 2023 · US
Heat exchange system and method of assembly
US-2022299263-A1 · Sep 22, 2022 · US
Heat exchange system and method of assembly
US-11391512-B2 · Jul 19, 2022 · US
Centrifugal air separator coil manufacturing methods
US-11235279-B2 · Feb 1, 2022 · US
Entwined tubular arrangements for heat exchangers and counterflow heat transfer systems
US-2021387244-A1 · Dec 16, 2021 · US
Heat exchange system and method of assembly
US-11187467-B2 · Nov 30, 2021 · US
Roller molding method for producing a spiral structure
US-2021351674-A1 · Nov 11, 2021 · US
Heat exchange system and method of assembly
US-2021333050-A1 · Oct 28, 2021 · US
Entwined tubular arrangements for heat exchangers and counterflow heat transfer systems
US-11110502-B2 · Sep 7, 2021 · US
Directed decoupling between bundle and core tube in wound heat exchangers
US-2021270535-A1 · Sep 2, 2021 · US
Heat exchange system and method of assembly
US-2021190419-A1 · Jun 24, 2021 · US
Winding wire manufacturing device and control method for the same
US-11007560-B2 · May 18, 2021 · US
Manufacturing method for pipe structure
US-2021094084-A1 · Apr 1, 2021 · US
Helical bending device
US-10913097-B2 · Feb 9, 2021 · US
Electrode Sheet Rolling Apparatus, Guide Roll System Used Therein, and Method of Winding Electrode Sheet Using the Same
US-2021036356-A1 · Feb 4, 2021 · US
Bending device for a wire
US-10665390-B2 · May 26, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21D11/06?
- CPC B21D11/06 is the Cooperative Patent Classification code for “Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form (making helically seamed tubing B21C37/12).”
- How many patents are filed under CPC B21D11/06 (Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form (making helically seamed tubing B21C37/12))?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC B21D11/06 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).