Method and apparatus for guarding and compounding material with two roll mill
US-2024399383-A1 · Dec 5, 2024 · US
with two or more rollers
with two or more rollers · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B02C4/02 |
| Official title | with two or more rollers |
| Display label | with two or more rollers |
| Total patents | 78 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 8 |
| 2022 | 9 |
| 2023 | 8 |
| 2024 | 18 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Orderly differentiated recycling and processing apparatus for waste batteries
US-2024332556-A1 · Oct 3, 2024 · US
Roller groups for grinding devices, grinding devices, and methods
US-11998928-B2 · Jun 4, 2024 · US
Milling apparatus and method
US-2024173721-A1 · May 30, 2024 · US
Arrangement for ensuring even pressure distribution for hydraulic roller press
US-2023390783-A1 · Dec 7, 2023 · US
Carrying device and method for frontal removal of a roll body from a roll frame, and roll frame having a roll body which can be removed frontally
US-11834310-B2 · Dec 5, 2023 · US
Comminution process of iron ore or iron ore products at natural moisture
US-11717834-B2 · Aug 8, 2023 · US
Process for producing superabsorbent polymer particles
US-11680142-B2 · Jun 20, 2023 · US
Method and apparatus for guarding and compounding material with two roll mill
US-2023173501-A1 · Jun 8, 2023 · US
Roller mill with a scraper
US-11618034-B2 · Apr 4, 2023 · US
Roller mill with a synchronizing device
US-2023085467-A1 · Mar 16, 2023 · US
Device and method for milling input material
US-2023042116-A1 · Feb 9, 2023 · US
Roller mill with a synchronising device
US-2022331811-A1 · Oct 20, 2022 · US
Roller mill having rim elements and method for setting an end-face gap of the roller mill
US-2022258170-A1 · Aug 18, 2022 · US
Roller mill and method for operating a roller mill
US-2022250081-A1 · Aug 11, 2022 · US
Supporting device for two transmissions and device having a supporting device of this kind
US-2022196138-A1 · Jun 23, 2022 · US
Roller groups for grinding devices, grinding devices, and methods
US-2022184628-A1 · Jun 16, 2022 · US
Process for producing superabsorbent polymer particles
US-2022185924-A1 · Jun 16, 2022 · US
Roller groups for grinding devices, grinding devices, and methods
US-2022184627-A1 · Jun 16, 2022 · US
Distribution metering device for a roller mill, roller mill with such a distribution metering device, method for grinding grinding stock, and roller mill comprising a switching cabinet with a cooling system
US-2022072561-A1 · Mar 10, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B02C4/02?
- CPC B02C4/02 is the Cooperative Patent Classification code for “with two or more rollers.”
- How many patents are filed under CPC B02C4/02 (with two or more rollers)?
- Our database includes 78 publications tagged with this CPC code.
- Is patent activity under CPC B02C4/02 growing?
- Publication counts under this code: 18 in 2024 vs 4 in 2025 (latest complete years).