Filter System with a Filter Element and a Safety Assembly, a Safety Assembly, and a Filter Element
US-2024082766-A1 · Mar 14, 2024 · US
Cleaning-out devices {, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid}
Cleaning-out devices {, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid} · 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 | B01D35/16 |
| Official title | Cleaning-out devices {, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid} |
| Display label | Cleaning-out devices {, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid} |
| Total patents | 428 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 32 |
| 2017 | 40 |
| 2018 | 32 |
| 2019 | 41 |
| 2020 | 62 |
| 2021 | 42 |
| 2022 | 48 |
| 2023 | 38 |
| 2024 | 38 |
| 2025 | 29 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid Recovery Filter
US-2017368479-A1 · Dec 28, 2017 · US
Filter with a liquid drain valve
US-9815004-B2 · Nov 14, 2017 · US
Liquid recovery filter
US-9757666-B2 · Sep 12, 2017 · US
Filter system, closure element, and filter element
US-2017197160-A1 · Jul 13, 2017 · US
Filter method for filtering a fluid and filtering device for filtering a fluid
US-2017182439-A1 · Jun 29, 2017 · US
Fuel filter with water separator
US-2017144091-A1 · May 25, 2017 · US
Filter group
US-2016375382-A1 · Dec 29, 2016 · US
Filter element having vent tube and filter assembly
US-9527016-B2 · Dec 27, 2016 · US
Canister filter system with drain that cooperates with filter element
US-9511314-B2 · Dec 6, 2016 · US
Filter assembly
US-9504939-B2 · Nov 29, 2016 · US
Filter apparatus
US-9492768-B2 · Nov 15, 2016 · US
Filter Element
US-2016325212-A1 · Nov 10, 2016 · US
Filter Element With Multi-Stage Water-Separating Action and With Bayonet Connection, and Fuel Filter Having a Filter Element of Said Type
US-2016317955-A1 · Nov 3, 2016 · US
Method for sterilizing water treatment apparatus having plurality of tanks
US-2016303621-A1 · Oct 20, 2016 · US
Top load liquid filter assembly, system, and methods
US-2016271533-A1 · Sep 22, 2016 · US
Filter device with water separator, separation zone, collection space and plural fluid passages, including dual passages within an adapter part secured upon a filter element retainer
US-9440168-B2 · Sep 13, 2016 · US
Liquid filter assembly; and, methods
US-9433881-B2 · Sep 6, 2016 · US
Liquid filter, in particular an oil filter
US-9427682-B2 · Aug 30, 2016 · US
Treatment method for used ion exchange resin and treatment apparatus for used ion exchange resin
US-2016243474-A1 · Aug 25, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D35/16?
- CPC B01D35/16 is the Cooperative Patent Classification code for “Cleaning-out devices {, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid}.”
- How many patents are filed under CPC B01D35/16 (Cleaning-out devices {, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid})?
- Our database includes 428 publications tagged with this CPC code.
- Is patent activity under CPC B01D35/16 growing?
- Publication counts under this code: 38 in 2024 vs 29 in 2025 (latest complete years).