Laundry treatment appliance and method of estimating drying time based on laundry load size
US-12509810-B2 · Dec 30, 2025 · US
Responding to irregular working conditions, e.g. malfunctioning of pumps (safety arrangements for washing machines D06F37/42)
Responding to irregular working conditions, e.g. malfunctioning of pumps (safety arrangements for washing machines D06F37/42) · 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 | D06F33/74 |
| Official title | Responding to irregular working conditions, e.g. malfunctioning of pumps (safety arrangements for washing machines D06F37/42) |
| Display label | Responding to irregular working conditions, e.g. malfunctioning of pumps (safety arrangements for washing machines D06F37/42) |
| Total patents | 64 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 8 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 3 |
| 2023 | 6 |
| 2024 | 9 |
| 2025 | 16 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compressor frequency regulation method, control apparatus, heat exchange device and electronic device
US-12435915-B2 · Oct 7, 2025 · US
Combination washing and drying laundry appliance having a filter cleaning system for removing lint during a laundry cycle
US-12404618-B2 · Sep 2, 2025 · US
Clothes treating apparatus and method for controlling clothes treating apparatus
US-2025243616-A1 · Jul 31, 2025 · US
Washing machine and controlling method for same
US-2025230595-A1 · Jul 17, 2025 · US
Modifications to washer and dryer cycles for a recreational vehicle combination laundry appliance
US-2025223742-A1 · Jul 10, 2025 · US
Systems and methods for detecting objects on top of laundry treatment appliances
US-12331445-B2 · Jun 17, 2025 · US
Appliance for drying and/or washing laundry equipped with an autonomous fire extinguishing system
US-12331447-B2 · Jun 17, 2025 · US
Clothes handling device
US-2025137183-A1 · May 1, 2025 · US
Control method and control apparatus of cleaning device, and cleaning device
US-2025089967-A1 · Mar 20, 2025 · US
Improvements relating to laundry apparatus and/or their control
US-2025084579-A1 · Mar 13, 2025 · US
Clothes care apparatus and method for controlling the same
US-2025075388-A1 · Mar 6, 2025 · US
Washing machine appliances with humidity measurement
US-12221737-B2 · Feb 11, 2025 · US
Laundry treatment apparatus and control method thereof
US-2025012000-A1 · Jan 9, 2025 · US
Drying air duct, clothing treatment device, and method for cleaning drying air duct
US-12173447-B2 · Dec 24, 2024 · US
Washing machine and controlling method thereof
US-12123124-B2 · Oct 22, 2024 · US
Method for controlling water supply path in washing machine, and washing machine configured to implement same
US-2024344258-A1 · Oct 17, 2024 · US
Systems and methods for detecting objects on top of laundry treatment appliances
US-2024229317-A9 · Jul 11, 2024 · US
Systems and methods for detecting objects on top of laundry treatment appliances
US-2024133098-A1 · Apr 25, 2024 · US
Systems and methods for fan operation detection
US-2024102221-A1 · Mar 28, 2024 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D06F33/74?
- CPC D06F33/74 is the Cooperative Patent Classification code for “Responding to irregular working conditions, e.g. malfunctioning of pumps (safety arrangements for washing machines D06F37/42).”
- How many patents are filed under CPC D06F33/74 (Responding to irregular working conditions, e.g. malfunctioning of pumps (safety arrangements for washing machines D06F37/42))?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC D06F33/74 growing?
- Publication counts under this code: 9 in 2024 vs 16 in 2025 (latest complete years).