Air filter medium, filter pack, and air filter unit
US-2021260516-A1 · Aug 26, 2021 · US
of wire gauze; of knitted wire; of expanded metal
of wire gauze; of knitted wire; of expanded metal · 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 | B01D39/12 |
| Official title | of wire gauze; of knitted wire; of expanded metal |
| Display label | of wire gauze; of knitted wire; of expanded metal |
| Total patents | 164 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 10 |
| 2019 | 12 |
| 2020 | 15 |
| 2021 | 26 |
| 2022 | 25 |
| 2023 | 17 |
| 2024 | 21 |
| 2025 | 12 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter aids for treating oil and methods of preparation and use thereof
US-2020384396-A1 · Dec 10, 2020 · US
Foreign object damage screen assembly for a gas turbine engine
US-10823063-B2 · Nov 3, 2020 · US
Suction strainer
US-10792597-B2 · Oct 6, 2020 · US
Metal filter and production method therefor
US-2020306674-A1 · Oct 1, 2020 · US
Internal pressure adjustment member and electrical component for transport equipment
US-2020298188-A1 · Sep 24, 2020 · US
Material used for rapid separation of oil and water and preparation method and application thereof
US-10780370-B2 · Sep 22, 2020 · US
Dust removal system
US-10722832-B1 · Jul 28, 2020 · US
Cell filtration filter
US-10704019-B2 · Jul 7, 2020 · US
Inflator filter
US-10676062-B2 · Jun 9, 2020 · US
Fine mesh fish larvae protection system for traveling water screens
US-10669683-B2 · Jun 2, 2020 · US
Active coalescer to remove fine liquid droplets
US-10596498-B2 · Mar 24, 2020 · US
Inflator, method of manufacturing the same and module including said inflator
US-10589709-B2 · Mar 17, 2020 · US
Ice separator of a fuel system for a gas turbine engine
US-2020080479-A1 · Mar 12, 2020 · US
Solvent reservoir filters, systems and methods
US-2020023295-A1 · Jan 23, 2020 · US
Flame-guard filter composed of a number of layer sequences, and arrangements of flame-guard filters and their use
US-10537760-B2 · Jan 21, 2020 · US
Dust collector for vacuum cleaner
US-10492652-B2 · Dec 3, 2019 · US
Inlet screen assembly for ultra low NOx gas-air mixing system
US-10480784-B2 · Nov 19, 2019 · US
Filtration filter
US-2019336919-A1 · Nov 7, 2019 · US
Oil catch apparatus
US-10434450-B2 · Oct 8, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D39/12?
- CPC B01D39/12 is the Cooperative Patent Classification code for “of wire gauze; of knitted wire; of expanded metal.”
- How many patents are filed under CPC B01D39/12 (of wire gauze; of knitted wire; of expanded metal)?
- Our database includes 164 publications tagged with this CPC code.
- Is patent activity under CPC B01D39/12 growing?
- Publication counts under this code: 21 in 2024 vs 12 in 2025 (latest complete years).