Air filter systems and methods of using the same
US-2019193012-A1 · Jun 27, 2019 · US
arranged concentrically or coaxially
arranged concentrically or coaxially · 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 | B01D46/60 |
| Official title | arranged concentrically or coaxially |
| Display label | arranged concentrically or coaxially |
| Total patents | 142 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 9 |
| 2017 | 21 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 9 |
| 2021 | 9 |
| 2022 | 7 |
| 2023 | 18 |
| 2024 | 15 |
| 2025 | 10 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter, hollow filter element, and filter housing of a filter, and seal of a hollow filter element
US-10105629-B2 · Oct 23, 2018 · US
Hollow filter element of a filter for filtering fluid, filter, filter housing, and seal of a hollow filter element
US-10105630-B2 · Oct 23, 2018 · US
Separating Device for Separating a Fluid from Gas as well as Separating Element and Coupling Element for such a Separating Device
US-2018243676-A1 · Aug 30, 2018 · US
Air cleaner
US-2018207568-A1 · Jul 26, 2018 · US
Filter elements with end cap features; element support assembly; and methods
US-9962641-B2 · May 8, 2018 · US
Air cleaner
US-9950289-B2 · Apr 24, 2018 · US
Air cleaner
US-9943794-B2 · Apr 17, 2018 · US
Connector and joined pleated filter sections
US-2018099239-A1 · Apr 12, 2018 · US
Filter systems with dirty air chamber spacer elements and methods of using the same
US-2018021712-A1 · Jan 25, 2018 · US
Air filter element
US-9873073-B2 · Jan 23, 2018 · US
Air cleaner
US-9827523-B2 · Nov 28, 2017 · US
Air cleaner
US-9821259-B2 · Nov 21, 2017 · US
Air cleaner
US-2017326490-A1 · Nov 16, 2017 · US
Air cleaner
US-2017326491-A1 · Nov 16, 2017 · US
Air cleaner
US-2017320003-A1 · Nov 9, 2017 · US
Air cleaner
US-2017320002-A1 · Nov 9, 2017 · US
Filter systems with dirty air chamber spacer elements and methods of using the same
US-9795908-B2 · Oct 24, 2017 · US
Filter Assembly
US-2017291129-A1 · Oct 12, 2017 · US
Filter Element and Filter Arrangement
US-2017252688-A1 · Sep 7, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D46/60?
- CPC B01D46/60 is the Cooperative Patent Classification code for “arranged concentrically or coaxially.”
- How many patents are filed under CPC B01D46/60 (arranged concentrically or coaxially)?
- Our database includes 142 publications tagged with this CPC code.
- Is patent activity under CPC B01D46/60 growing?
- Publication counts under this code: 15 in 2024 vs 10 in 2025 (latest complete years).