Cleaning apparatus with automated dosing supply tank
US-2025344927-A1 · Nov 13, 2025 · US
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Cleaning window shades, window screens, venetian blinds (A47L1/15 takes precedence; suction cleaner nozzles A47L9/02)
Cleaning window shades, window screens, venetian blinds (A47L1/15 takes precedence; suction cleaner nozzles A47L9/02) · 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 | A47L4/00 |
| Official title | Cleaning window shades, window screens, venetian blinds (A47L1/15 takes precedence; suction cleaner nozzles A47L9/02) |
| Display label | Cleaning window shades, window screens, venetian blinds (A47L1/15 takes precedence; suction cleaner nozzles A47L9/02) |
| Total patents | 7 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
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US-2018258693-A1 · Sep 13, 2018 · US
Lather-forming tissue paper product
US-2016304818-A1 · Oct 20, 2016 · US