Laundry treating apparatus
US-2022307187-A1 · Sep 29, 2022 · US
within an enclosing receptacle
within an enclosing receptacle · 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 | D06F21/04 |
| Official title | within an enclosing receptacle |
| Display label | within an enclosing receptacle |
| Total patents | 134 |
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 | 5 |
| 2019 | 7 |
| 2020 | 16 |
| 2021 | 21 |
| 2022 | 29 |
| 2023 | 19 |
| 2024 | 21 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Laundry treating apparatus
US-2022098782-A1 · Mar 31, 2022 · US
Laundry apparatus
US-11168429-B2 · Nov 9, 2021 · US
Method for operating a laundry washing machine using a unit dose package and laundry washing machine
US-11162209-B2 · Nov 2, 2021 · US
Washing machine
US-2021292956-A1 · Sep 23, 2021 · US
Method for operating a laundry washing machine using a unit dose package and laundry washing machine
US-2021269962-A1 · Sep 2, 2021 · US
Suspensionless laundry apparatuses and methods of balancing a laundry apparatus
US-2021246591-A1 · Aug 12, 2021 · US
Method and apparatus for cleaning laundry
US-11066775-B2 · Jul 20, 2021 · US
Method and apparatus for cleaning laundry
US-2021214878-A1 · Jul 15, 2021 · US
Washing machine
US-11060228-B2 · Jul 13, 2021 · US
Method and apparatus for cleaning laundry
US-11041267-B2 · Jun 22, 2021 · US
Laundry machine
US-11035067-B2 · Jun 15, 2021 · US
Washing machine
US-11028515-B2 · Jun 8, 2021 · US
Door assembly for a washing machine appliance
US-2021164147-A1 · Jun 3, 2021 · US
Clothes treatment apparatus and control method therefor
US-2021164151-A1 · Jun 3, 2021 · US
Washing machine and control method of the same
US-11008693-B2 · May 18, 2021 · US
Drum washing machine
US-2021131006-A1 · May 6, 2021 · US
Washing machine
US-2021108353-A1 · Apr 15, 2021 · US
Method and apparatus for cleaning laundry
US-2021108358-A1 · Apr 15, 2021 · US
Clothes treatment apparatus and control method therefor
US-10941511-B2 · Mar 9, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D06F21/04?
- CPC D06F21/04 is the Cooperative Patent Classification code for “within an enclosing receptacle.”
- How many patents are filed under CPC D06F21/04 (within an enclosing receptacle)?
- Our database includes 134 publications tagged with this CPC code.
- Is patent activity under CPC D06F21/04 growing?
- Publication counts under this code: 21 in 2024 vs 7 in 2025 (latest complete years).