Filter disk segments
US-12220657-B2 · Feb 11, 2025 · US
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with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type · 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 | B01D29/39 |
| Official title | with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type |
| Display label | with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bag for pressure leaf filter
US-12186691-B2 · Jan 7, 2025 · US
Filter disk segments
US-2022347603-A1 · Nov 3, 2022 · US
Hydrogen sulfide production method and sulfur recovery method
US-11459236-B2 · Oct 4, 2022 · US
Scalable communication switch system
US-2022157479-A1 · May 19, 2022 · US
Filter assembly with lateral removal of tie rods, and associated method
US-2022062798-A1 · Mar 3, 2022 · US
Bag for Pressure Leaf Filter
US-2021362084-A1 · Nov 25, 2021 · US
Filters for liquid flow based devices and systems
US-11150225-B2 · Oct 19, 2021 · US
Hydrogen sulfide production method and sulfur recovery method
US-2021053828-A1 · Feb 25, 2021 · US
Methods and apparatus for treating water and wastewater employing a cloth filter
US-10905981-B2 · Feb 2, 2021 · US
Injection-molding method for mesh filter, injection-molding mold, and mesh filter
US-10611069-B2 · Apr 7, 2020 · US
Filter element and filter unit
US-10335716-B2 · Jul 2, 2019 · US
Filters for liquid flow based devices and systems
US-2019195841-A1 · Jun 27, 2019 · US
Filter element and filter unit
US-2019176060-A1 · Jun 13, 2019 · US
Injection-molding method for mesh filter, injection-molding mold, and mesh filter
US-2018236701-A1 · Aug 23, 2018 · US
Disk type filtering apparatus
US-10016706-B2 · Jul 10, 2018 · US
Disk type filtering apparatus
US-9962633-B2 · May 8, 2018 · US
Methods and apparatus for treating water and wastewater employing a cloth filter
US-2018078883-A9 · Mar 22, 2018 · US
Filter for molten polymer filtration
US-9895638-B2 · Feb 20, 2018 · US
Filter for molten polymer filtration
US-2017128866-A1 · May 11, 2017 · US