Durable pilling resistant nonwoven insulation
US-2024229313-A9 · Jul 11, 2024 · US
Polyesters
Polyesters · 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 | D04H1/435 |
| Official title | Polyesters |
| Display label | Polyesters |
| Total patents | 623 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 36 |
| 2016 | 32 |
| 2017 | 37 |
| 2018 | 39 |
| 2019 | 43 |
| 2020 | 48 |
| 2021 | 50 |
| 2022 | 89 |
| 2023 | 81 |
| 2024 | 81 |
| 2025 | 61 |
| 2026 | 26 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method to recycle polyester-based nonwoven to staple fiber
US-2024181119-A1 · Jun 6, 2024 · US
Manufacturing method of meltblown fiber membrane
US-2024181376-A1 · Jun 6, 2024 · US
Bituminous membranes with biodegradable binder
US-2024018706-A1 · Jan 18, 2024 · US
Bicomponent nonwoven fabric having an improved strength and air permeability and manufacturing method thereof
US-9528207-B2 · Dec 27, 2016 · US
Medical devices containing dry spun non-wovens of poly-4-hydroxybutyrate and copolymers with anisotropic properties
US-9511169-B2 · Dec 6, 2016 · US
Polyester fiber suitable for air bag and method for producing the polyester fiber
US-9499928-B2 · Nov 22, 2016 · US
High-loft nonwoven including stabilizer or binder
US-9499929-B2 · Nov 22, 2016 · US
Leukocyte removal filter material and leukocyte removal method
US-2016310883-A1 · Oct 27, 2016 · US
Flexible non-woven mat
US-2016273140-A1 · Sep 22, 2016 · US
Sizing composition for fibers, in particular mineral fibers, comprising a non-reducing sugar and an inorganic acid ammonium salt, and resulting products
US-2016264454-A1 · Sep 15, 2016 · US
Fibers, wipes, and methods
US-2016208095-A1 · Jul 21, 2016 · US
Fibers and wipes with epoxidized fatty ester disposed thereon, and methods
US-2016194819-A1 · Jul 7, 2016 · US
Nonwoven joint tape having low moisture expansion properties and method for using same
US-9376824-B2 · Jun 28, 2016 · US
Nanofibrous materials as drug, protein, or genetic release vehicles
US-2016158160-A1 · Jun 9, 2016 · US
Method and apparatus for forming a fibrous media
US-9353481-B2 · May 31, 2016 · US
Polypropylene fibers and fabrics
US-9322114-B2 · Apr 26, 2016 · US
Biodegradable nonwoven fabric and fiber product using the same
US-9290868-B2 · Mar 22, 2016 · US
Nonwoven pouch comprising heat sealable binder fiber
US-2016073689-A1 · Mar 17, 2016 · US
Wet-Laid process to produce a bound nonwoven article
US-9273417-B2 · Mar 1, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D04H1/435?
- CPC D04H1/435 is the Cooperative Patent Classification code for “Polyesters.”
- How many patents are filed under CPC D04H1/435 (Polyesters)?
- Our database includes 623 publications tagged with this CPC code.
- Is patent activity under CPC D04H1/435 growing?
- Publication counts under this code: 81 in 2024 vs 61 in 2025 (latest complete years).