Return pan for an agricultural combine
US-12446489-B2 · Oct 21, 2025 · US
Arrangements for returning unthreshed grain to the threshing device
Arrangements for returning unthreshed grain to the threshing device · 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 | A01F12/52 |
| Official title | Arrangements for returning unthreshed grain to the threshing device |
| Display label | Arrangements for returning unthreshed grain to the threshing device |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 5 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 7 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Active return tube and method of controlling same
US-2025221343-A1 · Jul 10, 2025 · US
Power transmission applicable in a combine harvester
US-2025151659-A1 · May 15, 2025 · US
Closed loop control of tailings processor aggressiveness
US-12150413-B2 · Nov 26, 2024 · US
Grain cleaning system and method of controlling such
US-12133484-B2 · Nov 5, 2024 · US
Removable insert for a threshing rotor cage
US-12089535-B2 · Sep 17, 2024 · US
Threshing apparatus
US-11930740-B2 · Mar 19, 2024 · US
Threshing Apparatus and Harvester
US-2023247943-A1 · Aug 10, 2023 · US
Combine harvester and driver assistance system therefor
US-11638398-B2 · May 2, 2023 · US
Return pan for an agricultural combine
US-2023015715-A1 · Jan 19, 2023 · US
Combine harvester having a threshing device
US-11528847-B2 · Dec 20, 2022 · US
Zonal machine control
US-11467605-B2 · Oct 11, 2022 · US
Threshing Apparatus
US-2022217911-A1 · Jul 14, 2022 · US
Combine harvester tailings return system
US-11375668-B2 · Jul 5, 2022 · US
Agricultural elevator supplied by multiple cross augers
US-11259466-B2 · Mar 1, 2022 · US
Grain cleaning system and method of controlling such
US-2022046856-A1 · Feb 17, 2022 · US
Closed loop control of tailings processor aggressiveness
US-2021345551-A1 · Nov 11, 2021 · US
Return pan grain presentation to a sensor
US-11083137-B2 · Aug 10, 2021 · US
Closed loop control of tailings processor aggressiveness
US-11076533-B2 · Aug 3, 2021 · US
Combine and Harvester
US-2021227753-A1 · Jul 29, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC A01F12/52?
- CPC A01F12/52 is the Cooperative Patent Classification code for “Arrangements for returning unthreshed grain to the threshing device.”
- How many patents are filed under CPC A01F12/52 (Arrangements for returning unthreshed grain to the threshing device)?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC A01F12/52 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).