Enclosed media fluid filtration device
US-2025345726-A1 · Nov 13, 2025 · US
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by the weight of the liquid in a tube, e.g. siphon, barometric leg
by the weight of the liquid in a tube, e.g. siphon, barometric leg · 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 | B01D2201/206 |
| Official title | by the weight of the liquid in a tube, e.g. siphon, barometric leg |
| Display label | by the weight of the liquid in a tube, e.g. siphon, barometric leg |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 5 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Enclosed media fluid filtration device
US-12311290-B2 · May 27, 2025 · US
Filter element with venting function for suspension on a filter head, and a filter system
US-11517836-B2 · Dec 6, 2022 · US
Filter Element with Venting Function for Suspension on a Filter Head, and a Filter System
US-2022168675-A1 · Jun 2, 2022 · US
Liquid filter
US-2022168671-A1 · Jun 2, 2022 · US
Enclosed media fluid filtration device
US-2022134260-A1 · May 5, 2022 · US
Enclosed media fluid filtration device
US-11253799-B2 · Feb 22, 2022 · US
Enclosed media fluid filtration device
US-2021229002-A1 · Jul 29, 2021 · US
Enclosed media fluid filtration device
US-11020688-B2 · Jun 1, 2021 · US
Valve device and fuel filter module
US-10927801-B2 · Feb 23, 2021 · US
Filter Element with Venting Function for Suspension on a Filter Head, and a Filter System
US-2020289967-A1 · Sep 17, 2020 · US
Enclosed media fluid filtration device
US-2020155976-A1 · May 21, 2020 · US
Enclosed media fluid filtration device
US-10549216-B2 · Feb 4, 2020 · US
Valve Device and Fuel Filter Module
US-2019160403-A1 · May 30, 2019 · US