Device for producing a composite nonwoven web
US-2024044059-A1 · Feb 8, 2024 · US
entanglement of layered webs
entanglement of layered webs · Cooperative Patent Classification (CPC)
Textile and paper production, treatment, and products.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | D04H1/498 |
| Official title | entanglement of layered webs |
| Display label | entanglement of layered webs |
| Total patents | 290 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 20 |
| 2016 | 19 |
| 2017 | 14 |
| 2018 | 23 |
| 2019 | 22 |
| 2020 | 22 |
| 2021 | 26 |
| 2022 | 38 |
| 2023 | 26 |
| 2024 | 38 |
| 2025 | 35 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fabric Having Tobacco Entangled with Structural Fibers
US-2018249759-A1 · Sep 6, 2018 · US
Composite panel with thermosetting cellular matrix, manufacturing method, and structure for covering a wall formed from an assembly of panels
US-2018126690-A1 · May 10, 2018 · US
Plant and method for connecting a web of fibrous material to a nonwoven or consolidating it therewith
US-2018112339-A1 · Apr 26, 2018 · US
Manufacturing method of high temperature resistant sound absorbing materials for vehicle
US-9937696-B2 · Apr 10, 2018 · US
Post-bonded grooved elastic materials
US-9913764-B2 · Mar 13, 2018 · US
A method for manufacturing a laminated textile product, a primary backing for use in this method and a method to manufacture this primary backing
US-2018030632-A1 · Feb 1, 2018 · US
Nonwoven material and a method for producing nonwoven material
US-9850604-B2 · Dec 26, 2017 · US
System and method for multiple surface air jet needling
US-9850606-B2 · Dec 26, 2017 · US
Top Sheet for Personal Care Product
US-2017356109-A1 · Dec 14, 2017 · US
Fabric having tobacco entangled with structural fibers
US-9814261-B2 · Nov 14, 2017 · US
Needling fibrous webs
US-9790626-B2 · Oct 17, 2017 · US
System and method for air entanglement
US-9783917-B2 · Oct 10, 2017 · US
Differential needling of a carbon fiber preform
US-2017239911-A1 · Aug 24, 2017 · US
Structured, dispersible nonwoven web comprised of hydroentangled individualized bast fibers
US-2017233909-A1 · Aug 17, 2017 · US
Multilayer nonwoven fabric for foam molding, method of producing multilayer nonwoven fabric for foam molding, urethane-foam molded complex using multilayer nonwoven fabric, vehicle seat, and chair
US-9694558-B2 · Jul 4, 2017 · US
Liner for upholstered furniture
US-2017182736-A1 · Jun 29, 2017 · US
Microfiber nonwoven composite
US-2017182735-A1 · Jun 29, 2017 · US
Cleaning cloth
US-2017050220-A1 · Feb 23, 2017 · US
Low linting imaged hydroentangled nonwoven composite
US-2017016158-A1 · Jan 19, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D04H1/498?
- CPC D04H1/498 is the Cooperative Patent Classification code for “entanglement of layered webs.”
- How many patents are filed under CPC D04H1/498 (entanglement of layered webs)?
- Our database includes 290 publications tagged with this CPC code.
- Is patent activity under CPC D04H1/498 growing?
- Publication counts under this code: 38 in 2024 vs 35 in 2025 (latest complete years).