Filter Oil Formulation
US-2022372939-A1 · Nov 24, 2022 · US
by liquid process
by liquid process · 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 | B01D46/79 |
| Official title | by liquid process |
| Display label | by liquid process |
| Total patents | 104 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 8 |
| 2018 | 6 |
| 2019 | 17 |
| 2020 | 11 |
| 2021 | 8 |
| 2022 | 11 |
| 2023 | 11 |
| 2024 | 11 |
| 2025 | 10 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for wetting filtration media utilized in additive manufacturing processes
US-2022362702-A1 · Nov 17, 2022 · US
Air box with integrated filter media
US-2022243689-A1 · Aug 4, 2022 · US
Air box with integrated filter media
US-11306691-B2 · Apr 19, 2022 · US
Filter screen component, base assembly, clothes dryer, and washing and drying integrated machine
US-2021394106-A1 · Dec 23, 2021 · US
Filter screen rail module, cleaning member, indoor unit of air conditioner, and air conditioner
US-2021356168-A1 · Nov 18, 2021 · US
HVAC system air filter
US-11161074-B2 · Nov 2, 2021 · US
Particulate collection device
US-2021331113-A1 · Oct 28, 2021 · US
Water spray feature of an appliance for separating particulate material from a filter member
US-2021275957-A1 · Sep 9, 2021 · US
Laundry treating appliance for drying laundry
US-2021156067-A1 · May 27, 2021 · US
Dust collecting treatment apparatus
US-2021101254-A1 · Apr 8, 2021 · US
Air filter cleaning wand
US-2021040923-A1 · Feb 11, 2021 · US
Air filter device of industrial machine
US-2020338491-A1 · Oct 29, 2020 · US
Air filter cleaning wand
US-10815943-B2 · Oct 27, 2020 · US
Condensing duct, and washing and drying machine including the same
US-2020332448-A1 · Oct 22, 2020 · US
Cleaning process for a powder transfer system
US-2020316658-A1 · Oct 8, 2020 · US
Air intake filter assemblies with actuatable filter slats for heating, ventilation, and/or air conditioning (hvac) systems
US-2020254375-A1 · Aug 13, 2020 · US
Air intake filter assemblies with a multi-level fine filter for heating, ventilation, and/or air conditioning (hvac) systems
US-2020256585-A1 · Aug 13, 2020 · US
Use of a lubrication oil that forms water-soluble ash when combusted, engine system in which the oil is used and a vehicle comprising the engine system
US-10738679-B2 · Aug 11, 2020 · US
Cleanable filter
US-10688430-B2 · Jun 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D46/79?
- CPC B01D46/79 is the Cooperative Patent Classification code for “by liquid process.”
- How many patents are filed under CPC B01D46/79 (by liquid process)?
- Our database includes 104 publications tagged with this CPC code.
- Is patent activity under CPC B01D46/79 growing?
- Publication counts under this code: 11 in 2024 vs 10 in 2025 (latest complete years).