Layer structure for producing a hinge, in particular for producing multi-layered book covers
US-12576625-B2 · Mar 17, 2026 · US
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with hinges {(covers of loose-leaf binders with hinges B42F13/002)}
with hinges {(covers of loose-leaf binders with hinges B42F13/002)} · 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 | B42D3/06 |
| Official title | with hinges {(covers of loose-leaf binders with hinges B42F13/002)} |
| Display label | with hinges {(covers of loose-leaf binders with hinges B42F13/002)} |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2024 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Machine tool for producing a workpiece of predefined length
US-2024383052-A1 · Nov 21, 2024 · US
Flexible binding mechanism
US-11433698-B2 · Sep 6, 2022 · US
Layer structure for producing a hinge, in particular for producing multi-layered book covers
US-2022184988-A1 · Jun 16, 2022 · US
Flexible binding mechanism
US-2021260910-A1 · Aug 26, 2021 · US
Flexible binding mechanism
US-11034183-B2 · Jun 15, 2021 · US
Flexible binding mechanism
US-2020180348-A1 · Jun 11, 2020 · US
Flexible binding mechanism
US-10500890-B2 · Dec 10, 2019 · US
Flexible Binding Mechanism
US-2017001462-A1 · Jan 5, 2017 · US
Component with display stand
US-9346309-B2 · May 24, 2016 · US
Binder with reinforced spine
US-9346312-B2 · May 24, 2016 · US
Convertible bookstand cover
US-9162512-B2 · Oct 20, 2015 · US
Convertible bookstand cover
US-2015217590-A1 · Aug 6, 2015 · US
Component with Display Stand
US-2015054273-A1 · Feb 26, 2015 · US