Refining device
US-12533679-B2 · Jan 27, 2026 · US
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with horizontal shaft
with horizontal shaft · 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 | D21D1/38 |
| Official title | with horizontal shaft |
| Display label | with horizontal shaft |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Driving assistance apparatus
US-12307893-B2 · May 20, 2025 · US
Refiner blade element
US-11891758-B2 · Feb 6, 2024 · US
Refining device
US-2024024886-A1 · Jan 25, 2024 · US
Driving assistance apparatus
US-2023154322-A1 · May 18, 2023 · US
Defibration processing device, and fibrous feedstock recycling device
US-11261565-B2 · Mar 1, 2022 · US
Multiple Feed and Multiple Discharge Refiner
US-2021108367-A1 · Apr 15, 2021 · US
Refiner blade element
US-2021062422-A1 · Mar 4, 2021 · US
Defibration processing device, and fibrous feedstock recycling device
US-2019301092-A1 · Oct 3, 2019 · US