Chemical synthesis device and method for manufacturing chemical synthesis device
US-2015375191-A1 · Dec 31, 2015 · US
Punching, slitting or perforating
Punching, slitting or perforating · 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 | B32B38/04 |
| Official title | Punching, slitting or perforating |
| Display label | Punching, slitting or perforating |
| Total patents | 423 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 60 |
| 2016 | 38 |
| 2017 | 53 |
| 2018 | 35 |
| 2019 | 35 |
| 2020 | 52 |
| 2021 | 40 |
| 2022 | 33 |
| 2023 | 29 |
| 2024 | 25 |
| 2025 | 21 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Container formed from a container blank and having improved opening properties as a result of stretching heat treatment of polymer layers
US-9221228-B2 · Dec 29, 2015 · US
Carbon fiber insulator and preparing method thereof
US-2015367596-A1 · Dec 24, 2015 · US
Method and device for fastening an item to an object surface made of a porous or fibrous material
US-9205632-B2 · Dec 8, 2015 · US
A method and an apparatus for making mineral fibre products
US-2015315731-A1 · Nov 5, 2015 · US
Capacitive probe fabricating from spray deposition
US-2015316677-A1 · Nov 5, 2015 · US
Manufacturing method of highly heat-resistant sound absorbing and insulating materials
US-2015314738-A1 · Nov 5, 2015 · US
Heat insulating sheet, heat insulating material, method of manufacturing heat insulating sheet, and method of manufacturing heat insulating material
US-2015314552-A1 · Nov 5, 2015 · US
Method for labeling containers in a beverage bottling plant and a labeling station for a labeling machine in a beverage bottle labeling plant
US-9174757-B2 · Nov 3, 2015 · US
Resistance spot welding system and method
US-2015306862-A1 · Oct 29, 2015 · US
Laminated material and method of production thereof
US-9169054-B2 · Oct 27, 2015 · US
Vehicle interior panel with airbag tear seam formed by mechanical piercing
US-2015298641-A1 · Oct 22, 2015 · US
Laminated sheet and method of manufacturing the same
US-2015299944-A1 · Oct 22, 2015 · US
Method of separating a discrete portion from a web
US-9162432-B2 · Oct 20, 2015 · US
Substrate structure and manufacturing method thereof
US-2015296618-A1 · Oct 15, 2015 · US
Common mode filter and method of manufacturing the same
US-2015294785-A1 · Oct 15, 2015 · US
Manufacturing method of highly heat-resistant sound absorbing and insulating materials
US-2015283960-A1 · Oct 8, 2015 · US
Chip card substrate and method of forming a chip card substrate
US-2015286921-A1 · Oct 8, 2015 · US
Fiber-reinforced resin plate punching method and fiber-reinforced resin product fabrication method
US-2015273813-A1 · Oct 1, 2015 · US
Disposable Absorbent Pants With Advantageous Stretch And Manufacturability Features, And Methods For Manufacturing The Same
US-2015272785-A1 · Oct 1, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B32B38/04?
- CPC B32B38/04 is the Cooperative Patent Classification code for “Punching, slitting or perforating.”
- How many patents are filed under CPC B32B38/04 (Punching, slitting or perforating)?
- Our database includes 423 publications tagged with this CPC code.
- Is patent activity under CPC B32B38/04 growing?
- Publication counts under this code: 25 in 2024 vs 21 in 2025 (latest complete years).