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 | D04H1/55 |
| Official title | Polyesters |
| Display label | Polyesters |
| Total patents | 159 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 8 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 11 |
| 2020 | 12 |
| 2021 | 21 |
| 2022 | 27 |
| 2023 | 18 |
| 2024 | 22 |
| 2025 | 14 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Manufacturing method of meltblown fiber membrane
US-2024181376-A1 · Jun 6, 2024 · US
Layered composite articles and methods of making same
US-2021370654-A1 · Dec 2, 2021 · US
Functional nonwoven scrim for high temperature applications requiring low flammability, smoke, and toxicity
US-2021301436-A1 · Sep 30, 2021 · US
Shock pad for synthetic turf and methods for making same
US-11131068-B2 · Sep 28, 2021 · US
Ultrasonic bonding process for bonding nonwoven webs containing cellulose ester fibers
US-2021285136-A1 · Sep 16, 2021 · US
Non-woven fabric for primary carpet backing and manufacturing method thereof
US-2021198821-A1 · Jul 1, 2021 · US
Decorative sheet and method for manufacturing same
US-11035061-B2 · Jun 15, 2021 · US
Nonwoven fabric, method for manufacturing same, and composition for electrospinning
US-2021140081-A1 · May 13, 2021 · US
Nonwoven laminate
US-2021023815-A1 · Jan 28, 2021 · US
Filter medium with non-woven as single-layer fiber composite and method for producing such a filter medium
US-2020324235-A1 · Oct 15, 2020 · US
Nonwoven fabric having enhanced withdrawal force for carpet backing fabric and production method thereof
US-2020299876-A1 · Sep 24, 2020 · US
Thermoplastic fiber sheet
US-2020270815-A1 · Aug 27, 2020 · US
Thermal Insulators and Methods Thereof
US-2020263336-A1 · Aug 20, 2020 · US
Launderable plant-based substrate that is thermally bonded with biobased fibers
US-2020224344-A1 · Jul 16, 2020 · US
Shock Pad for Synthetic Turf and Methods for Making Same
US-2020224373-A1 · Jul 16, 2020 · US
Lofty fibrous trim part
US-2020139667-A1 · May 7, 2020 · US
Process for producing fibrous board
US-2020123712-A1 · Apr 23, 2020 · US
Cellulose acetate fiber blends for thermal insulation batting
US-2020071882-A1 · Mar 5, 2020 · US
Process for producing needle-punched nonwoven fabric
US-2020063303-A1 · Feb 27, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D04H1/55?
- CPC D04H1/55 is the Cooperative Patent Classification code for “Polyesters.”
- How many patents are filed under CPC D04H1/55 (Polyesters)?
- Our database includes 159 publications tagged with this CPC code.
- Is patent activity under CPC D04H1/55 growing?
- Publication counts under this code: 22 in 2024 vs 14 in 2025 (latest complete years).