Coupling device
US-11465435-B2 · Oct 11, 2022 · US
Perforated or punched sheets
Perforated or punched sheets · 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 | B42F3/003 |
| Official title | {Perforated or punched sheets} |
| Display label | Perforated or punched sheets |
| Total patents | 63 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 20 |
| 2017 | 5 |
| 2018 | 13 |
| 2019 | 7 |
| 2020 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Coupling device
US-2022144007-A1 · May 12, 2022 · US
Sheet item with non-circular holes
US-10814663-B2 · Oct 27, 2020 · US
Sheet processing apparatus and image forming apparatus
US-10369829-B2 · Aug 6, 2019 · US
Sheet item with non-circular holes
US-2019225007-A1 · Jul 25, 2019 · US
Paper-made staple and paper-made staple assembly
US-10357988-B2 · Jul 23, 2019 · US
Extended dividers
US-10286720-B2 · May 14, 2019 · US
Reversible dividers
US-10259257-B2 · Apr 16, 2019 · US
Sheet item with non-circular holes
US-10252565-B2 · Apr 9, 2019 · US
Device with quick-attach feature
US-2019001730-A1 · Jan 3, 2019 · US
Sheet post-processing device and image forming device provided with the sheet post-processing device
US-10160249-B2 · Dec 25, 2018 · US
Reinforced Pocket Device
US-2018290482-A1 · Oct 11, 2018 · US
Device with quick-attach feature
US-10086637-B2 · Oct 2, 2018 · US
Sheet processing device and image forming device provided with the sheet processing device
US-10023422-B2 · Jul 17, 2018 · US
Reinforced pocket device
US-10017002-B2 · Jul 10, 2018 · US
Sheet processing device and image forming device provided with the sheet processing device
US-10000355-B2 · Jun 19, 2018 · US
Sheet processing device and image forming apparatus
US-9994413-B2 · Jun 12, 2018 · US
Sheet processing apparatus and image forming apparatus
US-2018134061-A1 · May 17, 2018 · US
Extended dividers
US-2018117952-A1 · May 3, 2018 · US
Sheet processing apparatus and image forming system
US-9944488-B2 · Apr 17, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B42F3/003?
- CPC B42F3/003 is the Cooperative Patent Classification code for “Perforated or punched sheets.”
- How many patents are filed under CPC B42F3/003 (Perforated or punched sheets)?
- Our database includes 63 publications tagged with this CPC code.
- Is patent activity under CPC B42F3/003 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).