Filter element comprising inclined end panels and respective filter housing
US-2018339253-A1 · Nov 29, 2018 · US
Identification of filter type or position thereof, e.g. by transponders or bar codes
Identification of filter type or position thereof, e.g. by transponders or bar codes · 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 | B01D46/009 |
| Official title | {Identification of filter type or position thereof, e.g. by transponders or bar codes} |
| Display label | Identification of filter type or position thereof, e.g. by transponders or bar codes |
| Total patents | 257 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 24 |
| 2017 | 17 |
| 2018 | 27 |
| 2019 | 27 |
| 2020 | 34 |
| 2021 | 34 |
| 2022 | 22 |
| 2023 | 28 |
| 2024 | 15 |
| 2025 | 18 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air cleaner arrangements; components; and, methods
US-10124285-B2 · Nov 13, 2018 · US
Filtration monitoring systems
US-10119886-B2 · Nov 6, 2018 · US
Filtration sealing system
US-10112138-B2 · Oct 30, 2018 · US
Filter cartridges; air cleaner assemblies; housings; features; components; and, methods
US-2018257017-A1 · Sep 13, 2018 · US
Air purifying device
US-2018257018-A1 · Sep 13, 2018 · US
Apparatuses, systems and methods for providing filter recognition
US-2018214801-A1 · Aug 2, 2018 · US
Filter arrangements; components; and, methods
US-2018156087-A1 · Jun 7, 2018 · US
Conductive loop detection member
US-2018089547-A1 · Mar 29, 2018 · US
Filtration sealing system
US-2018001243-A1 · Jan 4, 2018 · US
Filtration assembly comprising a filter and a filter support and associated method for the collection and analysis of nanoparticles
US-9849414-B2 · Dec 26, 2017 · US
An air purifier filter system, an air purifier and a method for controlling an air purifier
US-2017341001-A1 · Nov 30, 2017 · US
Air cleaner arrangement with end support for cartridge; components; and, methods
US-2017326492-A1 · Nov 16, 2017 · US
Air purifier
US-9802145-B2 · Oct 31, 2017 · US
Inline pre-filter for aspirated detectors
US-9791354-B2 · Oct 17, 2017 · US
Air cleaner structure for blocking inflowing of debris and operation method thereof
US-9790900-B2 · Oct 17, 2017 · US
Filtration sealing system
US-9782708-B2 · Oct 10, 2017 · US
Filter arrangements; components; and, methods
US-9752474-B2 · Sep 5, 2017 · US
Aerosol separator assembly; components; and, methods
US-9737839-B2 · Aug 22, 2017 · US
Air filter, filter element and filter housing of an air filter
US-9726123-B2 · Aug 8, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D46/009?
- CPC B01D46/009 is the Cooperative Patent Classification code for “Identification of filter type or position thereof, e.g. by transponders or bar codes.”
- How many patents are filed under CPC B01D46/009 (Identification of filter type or position thereof, e.g. by transponders or bar codes)?
- Our database includes 257 publications tagged with this CPC code.
- Is patent activity under CPC B01D46/009 growing?
- Publication counts under this code: 15 in 2024 vs 18 in 2025 (latest complete years).