Attachment for a haircare appliance
US-2025049198-A1 · Feb 13, 2025 · US
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Hot-air producers (A45D20/20, A45D20/22 take precedence)
Hot-air producers (A45D20/20, A45D20/22 take precedence) · Cooperative Patent Classification (CPC)
Agriculture, food, personal care, health, and life sciences.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | A45D20/04 |
| Official title | Hot-air producers (A45D20/20, A45D20/22 take precedence) |
| Display label | Hot-air producers (A45D20/20, A45D20/22 take precedence) |
| Total patents | 24 |
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 | 2 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 3 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Diffuser attachment for air-moving appliance
US-2024365947-A1 · Nov 7, 2024 · US
Drying apparatus
US-12011122-B2 · Jun 18, 2024 · US
Drying apparatus and control method thereof
US-2022061601-A1 · Mar 3, 2022 · US
Drying apparatus
US-2022061602-A1 · Mar 3, 2022 · US
Diffuser and hair dryer having a diffuser
US-11253040-B2 · Feb 22, 2022 · US
Diffuser and hair dryer having a diffuser
US-2021315357-A1 · Oct 14, 2021 · US
Composition to reduce the drying time of keratin fibers, method and use thereof
US-10952955-B2 · Mar 23, 2021 · US
Hair treatment process
US-10864150-B2 · Dec 15, 2020 · US
Hand held appliance
US-10687595-B2 · Jun 23, 2020 · US
Method of shaping hair
US-10588839-B2 · Mar 17, 2020 · US
Hand held appliance
US-2019200720-A1 · Jul 4, 2019 · US
Ion generation device
US-2019192722-A1 · Jun 27, 2019 · US
Hand held appliance
US-10226112-B2 · Mar 12, 2019 · US
Composition to reduce the drying time of keratin fibers, method and use thereof
US-2018028433-A1 · Feb 1, 2018 · US
Hand held appliance
US-2017265615-A1 · Sep 21, 2017 · US
Hand held appliance
US-9675157-B2 · Jun 13, 2017 · US
Hair dryer vacuum attachment
US-2017127804-A1 · May 11, 2017 · US
Method of shaping hair
US-2016287500-A1 · Oct 6, 2016 · US
Hair treatment process
US-2016235638-A1 · Aug 18, 2016 · US