Peeling, screening and cleaning device for torreya grandis 'merrillii's
US-2025228163-A1 · Jul 17, 2025 · US
Rotary cleaners
Rotary cleaners · 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 | A01F12/442 |
| Official title | {Rotary cleaners} |
| Display label | Rotary cleaners |
| Total patents | 54 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 11 |
| 2020 | 9 |
| 2021 | 4 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Brush system for a threshing and separating system of an agricultural harvester
US-12317780-B2 · Jun 3, 2025 · US
Control of residue spread pattern by continuously varying distribution frequency
US-12232452-B2 · Feb 25, 2025 · US
Grain cleaning system and method of controlling such
US-12213407-B2 · Feb 4, 2025 · US
Grain Processing Apparatus of a Combine Harvester
US-2024407297-A1 · Dec 12, 2024 · US
Grain cleaning system and method of controlling such
US-12133484-B2 · Nov 5, 2024 · US
Combine harvester cleaning system with finger auger
US-2024099192-A1 · Mar 28, 2024 · US
Feed roll for a combine harvester
US-2023397539-A1 · Dec 14, 2023 · US
Multi-layer segmentation/stalk cutter device for first season of double-crop rice and control method, and combine harvester for first season of double-crop rice
US-11805734-B2 · Nov 7, 2023 · US
Brush system for a threshing and separating system of an agricultural harvester
US-2023240190-A1 · Aug 3, 2023 · US
Control of residue spread pattern by continuously varying distribution frequency
US-2023076080-A1 · Mar 9, 2023 · US
Threshing components for combine harvester
US-11382273-B2 · Jul 12, 2022 · US
Straw walker load monitoring
US-2022142048-A1 · May 12, 2022 · US
Rotary cleaning shoe
US-11252871-B2 · Feb 22, 2022 · US
Grain cleaning system and method of controlling such
US-2022046856-A1 · Feb 17, 2022 · US
Grain cleaning system and method of controlling such
US-2022046857-A1 · Feb 17, 2022 · US
Rotary shoe cleaner
US-11224169-B2 · Jan 18, 2022 · US
Combine with a pre-thresher
US-11147214-B2 · Oct 19, 2021 · US
System to reduce material accumulation on top of a power residue spreader on an agricultural combine
US-11039574-B2 · Jun 22, 2021 · US
Threshing components for combine harvester
US-2021127583-A1 · May 6, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A01F12/442?
- CPC A01F12/442 is the Cooperative Patent Classification code for “Rotary cleaners.”
- How many patents are filed under CPC A01F12/442 (Rotary cleaners)?
- Our database includes 54 publications tagged with this CPC code.
- Is patent activity under CPC A01F12/442 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).