Durable pilling resistant nonwoven insulation
US-2024229313-A9 · Jul 11, 2024 · US
Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres · 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 | D04H1/541 |
| Official title | Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres |
| Display label | Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres |
| Total patents | 228 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 26 |
| 2017 | 20 |
| 2018 | 15 |
| 2019 | 21 |
| 2020 | 32 |
| 2021 | 27 |
| 2022 | 19 |
| 2023 | 14 |
| 2024 | 16 |
| 2025 | 12 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Self-adhering nonwoven fabric
US-2017370038-A1 · Dec 28, 2017 · US
Method of making mounting mats for mounting a pollution control panel
US-9834875-B2 · Dec 5, 2017 · US
Cleaning tool
US-9826875-B2 · Nov 28, 2017 · US
Fibers for polyethylene nonwoven fabric
US-9803295-B2 · Oct 31, 2017 · US
Non-woven fabric board for exterior of vehicle and method for manufacturing same
US-2017306538-A1 · Oct 26, 2017 · US
Molded object having nonwoven fibrous structure
US-9758925-B2 · Sep 12, 2017 · US
Rugged elastic nonwoven fabric and method for manufacturing the same
US-9751280-B2 · Sep 5, 2017 · US
Liner for upholstered furniture
US-2017182736-A1 · Jun 29, 2017 · US
Crimped conjugated fiber and non-woven fabric comprising the fiber
US-9611568-B2 · Apr 4, 2017 · US
Lithium-ion secondary battery separator
US-9601737-B2 · Mar 21, 2017 · US
Fibers and articles including them
US-2017029991-A1 · Feb 2, 2017 · US
Bicomponent nonwoven fabric having an improved strength and air permeability and manufacturing method thereof
US-9528207-B2 · Dec 27, 2016 · US
Sound-absorbing material with excellent sound-absorbing performance and method for manufacturing thereof
US-9523192-B2 · Dec 20, 2016 · US
Mounting mat including inorganic nanoparticles and method for making the same
US-2016341094-A1 · Nov 24, 2016 · US
High-loft nonwoven including stabilizer or binder
US-9499929-B2 · Nov 22, 2016 · US
Nonwoven fabric with surface uneven structure, and product using same
US-9486979-B2 · Nov 8, 2016 · US
Nonwoven fibrous webs containing chemically active particulates and methods of making and using same
US-9475034-B2 · Oct 25, 2016 · US
Method for producing a fluffy temperature regulating warmth retention material and fluffy temperature regulating warmth retention material
US-2016273139-A1 · Sep 22, 2016 · US
Stretchable bulky nonwoven fabric and method for manufacturing same
US-9422652-B2 · Aug 23, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D04H1/541?
- CPC D04H1/541 is the Cooperative Patent Classification code for “Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres.”
- How many patents are filed under CPC D04H1/541 (Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres)?
- Our database includes 228 publications tagged with this CPC code.
- Is patent activity under CPC D04H1/541 growing?
- Publication counts under this code: 16 in 2024 vs 12 in 2025 (latest complete years).