Filter elements and methods of manufacturing filter elements
US-12337270-B2 · Jun 24, 2025 · US
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having a concertina shape
having a concertina shape · 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 | B01D29/235 |
| Official title | {having a concertina shape} |
| Display label | having a concertina shape |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 2 |
| 2019 | 1 |
| 2022 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter elements and methods of manufacturing filter elements
US-2022288522-A1 · Sep 15, 2022 · US
Filter element with a luminescent marker
US-10478760-B2 · Nov 19, 2019 · US
Filter element
US-2017165595-A1 · Jun 15, 2017 · US
Bellows, Filter Element, and Method
US-2017028321-A1 · Feb 2, 2017 · US
Filter, Hollow Filter Element, and Filter Housing of a Filter, and Seal of a Hollow Filter Element
US-2016129385-A1 · May 12, 2016 · US
Hollow Filter Element of a Filter for Filtering Fluid, Filter, Filter Housing, and Seal of a Hollow Filter Element
US-2016129384-A1 · May 12, 2016 · US
Filtration Article Containing A Filtration Material Having Twisted Pleats Therein
US-2015336033-A1 · Nov 26, 2015 · US