Mineral fiber mat based on a binder comprising amino acid polymer and alpha-hydroxy carbonyl compound
US-2025382733-A1 · Dec 18, 2025 · US
by treatment to produce shrinking, swelling, crimping or curling of fibres (in combination with needling D04H1/482)
by treatment to produce shrinking, swelling, crimping or curling of fibres (in combination with needling D04H1/482) · 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 | D04H1/50 |
| Official title | by treatment to produce shrinking, swelling, crimping or curling of fibres (in combination with needling D04H1/482) |
| Display label | by treatment to produce shrinking, swelling, crimping or curling of fibres (in combination with needling D04H1/482) |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Stretchable non-woven fabric having excellent repetition durability
US-11598034-B2 · Mar 7, 2023 · US
Crimped fiber spunbond nonwoven webs / laminates
US-11491057-B2 · Nov 8, 2022 · US
Compacted Fibrous Structure Articles and Methods for Making Same
US-2022325454-A1 · Oct 13, 2022 · US
Crimped Fiber Spunbond Nonwoven Webs/Laminate
US-2022168157-A1 · Jun 2, 2022 · US
Crimped fiber spunbond nonwoven webs / laminates
US-11202725-B2 · Dec 21, 2021 · US
Acoustic protective cover assembly containing a retracted membrane material
US-11122365-B2 · Sep 14, 2021 · US
Nonwoven fabric comprising a high loft spunbond layer
US-11021820-B2 · Jun 1, 2021 · US
Method for making a spunbonded high loft nonwoven web
US-11021821-B2 · Jun 1, 2021 · US
Crimped fiber spunbond nonwoven webs / laminates
US-2020229988-A1 · Jul 23, 2020 · US
Crimped fiber spunbond nonwoven webs / laminates
US-10646381-B2 · May 12, 2020 · US
Crimped Fiber Spunbond Nonwoven Webs/Laminate
US-2020078231-A1 · Mar 12, 2020 · US
Dimensionally-stable, fire-resistant melt-blown fibers and nonwoven structures including a flame retarding polymer
US-2020071865-A1 · Mar 5, 2020 · US
Method For Making A Spunbonded High Loft Nonwoven Web
US-2019316284-A1 · Oct 17, 2019 · US
Method for making a spunbonded high loft nonwoven web
US-10435829-B2 · Oct 8, 2019 · US
Acoustic protective cover assembly containing a retracted membrane material
US-2019268692-A1 · Aug 29, 2019 · US
Crimped fiber spunbond nonwoven webs / laminates
US-2019254887-A1 · Aug 22, 2019 · US
Nonwoven laminate fabric comprising meltblown and spundbond layers
US-2019136426-A1 · May 9, 2019 · US
Crimped fiber spunbond nonwoven webs/laminate
US-10271999-B2 · Apr 30, 2019 · US
Cosmetic carrier and cosmetic container housing same
US-2019104824-A1 · Apr 11, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D04H1/50?
- CPC D04H1/50 is the Cooperative Patent Classification code for “by treatment to produce shrinking, swelling, crimping or curling of fibres (in combination with needling D04H1/482).”
- How many patents are filed under CPC D04H1/50 (by treatment to produce shrinking, swelling, crimping or curling of fibres (in combination with needling D04H1/482))?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC D04H1/50 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).