Liquid filter module
US-2019284975-A1 · Sep 19, 2019 · US
Axial sealings
Axial sealings · 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 | B01D2201/342 |
| Official title | Axial sealings |
| Display label | Axial sealings |
| Total patents | 204 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 15 |
| 2017 | 17 |
| 2018 | 14 |
| 2019 | 14 |
| 2020 | 28 |
| 2021 | 17 |
| 2022 | 27 |
| 2023 | 24 |
| 2024 | 26 |
| 2025 | 12 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel filter with water separator
US-10413851-B2 · Sep 17, 2019 · US
Facial sealing system for a filter
US-2019240602-A1 · Aug 8, 2019 · US
Spin-on filter with external threads and methods
US-2019193008-A1 · Jun 27, 2019 · US
Filter housing that accepts both single open end o-ring and double open end filter elements
US-2019168141-A1 · Jun 6, 2019 · US
High capacity filter element end cap
US-10309078-B2 · Jun 4, 2019 · US
Spin-on filter with external threads and methods
US-10220339-B2 · Mar 5, 2019 · US
Spin-on fluid treatment device and methods
US-2019046907-A1 · Feb 14, 2019 · US
Filter cartridges; air cleaner assemblies; housings; features; components; and, methods
US-2018345195-A1 · Dec 6, 2018 · US
Filter Element of a Fluid Filter and Fluid Filter
US-2018333663-A1 · Nov 22, 2018 · US
Spin-on filter with external threads and methods
US-2018326334-A1 · Nov 15, 2018 · US
Fuel Filter
US-2018290086-A1 · Oct 11, 2018 · US
Filter device
US-10066652-B2 · Sep 4, 2018 · US
Filter of a Filter Device for Filtering Fluid and Filter Head of a Filter Device
US-2018229164-A1 · Aug 16, 2018 · US
Spin-on filter with external threads and methods
US-10046256-B2 · Aug 14, 2018 · US
Air filter cartridges; air cleaner assemblies; housings; features; components; and, methods
US-10046260-B2 · Aug 14, 2018 · US
Filter element
US-10010818-B2 · Jul 3, 2018 · US
Oil Filter Element and Oil Filter
US-2018154288-A1 · Jun 7, 2018 · US
Filter element and filtering device
US-9987570-B2 · Jun 5, 2018 · US
Adsorption carrier-packed column
US-9937440-B2 · Apr 10, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2201/342?
- CPC B01D2201/342 is the Cooperative Patent Classification code for “Axial sealings.”
- How many patents are filed under CPC B01D2201/342 (Axial sealings)?
- Our database includes 204 publications tagged with this CPC code.
- Is patent activity under CPC B01D2201/342 growing?
- Publication counts under this code: 26 in 2024 vs 12 in 2025 (latest complete years).