Housing for filter element; filter element; methods of use and making
US-10512859-B2 · Dec 24, 2019 · US
Seals or gaskets
Seals or gaskets · 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 | B01D2201/304 |
| Official title | Seals or gaskets |
| Display label | Seals or gaskets |
| Total patents | 279 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 8 |
| 2017 | 19 |
| 2018 | 16 |
| 2019 | 18 |
| 2020 | 25 |
| 2021 | 24 |
| 2022 | 44 |
| 2023 | 32 |
| 2024 | 45 |
| 2025 | 32 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter assembly having cryogenic seal arrangement
US-10456715-B2 · Oct 29, 2019 · US
Fuel filter with water separator
US-10413851-B2 · Sep 17, 2019 · US
Filter system and filter element having a sealing device
US-10343092-B2 · Jul 9, 2019 · US
Filter with Shielded Internal Gasket
US-2019070536-A1 · Mar 7, 2019 · US
Torsional No Filter No Run System and Method
US-2019046905-A1 · Feb 14, 2019 · US
Filter element and filter system
US-10201772-B2 · Feb 12, 2019 · US
Filter system comprising coupling device
US-10179302-B2 · Jan 15, 2019 · US
Filter with shielded internal gasket
US-10118114-B2 · Nov 6, 2018 · US
Filter, filter device, and method of use
US-2018280848-A1 · Oct 4, 2018 · US
A filter insert and a filter arrangement
US-2018257011-A1 · Sep 13, 2018 · US
Purification device for a liquid-crystal mixture
US-10052566-B2 · Aug 21, 2018 · US
Filter of a Filter Device for Filtering Fluid and Filter Head of a Filter Device
US-2018229164-A1 · Aug 16, 2018 · US
Filter system
US-2018229163-A1 · Aug 16, 2018 · US
Filter system
US-2018221794-A1 · Aug 9, 2018 · US
Filter cartridge for liquid filteration; assembly; and, methods
US-2018193776-A1 · Jul 12, 2018 · US
Graduated Filtering Assembly
US-2018161714-A1 · Jun 14, 2018 · US
Filter unit
US-9937451-B2 · Apr 10, 2018 · US
Integral filter cartridge and cap
US-2018085691-A1 · Mar 29, 2018 · US
Filter cartridges for liquid filtration; assembly; and, methods
US-9895632-B2 · Feb 20, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2201/304?
- CPC B01D2201/304 is the Cooperative Patent Classification code for “Seals or gaskets.”
- How many patents are filed under CPC B01D2201/304 (Seals or gaskets)?
- Our database includes 279 publications tagged with this CPC code.
- Is patent activity under CPC B01D2201/304 growing?
- Publication counts under this code: 45 in 2024 vs 32 in 2025 (latest complete years).