Fuel filter
US-2020406176-A1 · Dec 31, 2020 · US
Special measures for connecting different parts of the filter
Special measures for connecting different parts of the filter · 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 | B01D2201/40 |
| Official title | Special measures for connecting different parts of the filter |
| Display label | Special measures for connecting different parts of the filter |
| Total patents | 123 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 9 |
| 2017 | 9 |
| 2018 | 10 |
| 2019 | 11 |
| 2020 | 16 |
| 2021 | 8 |
| 2022 | 17 |
| 2023 | 9 |
| 2024 | 12 |
| 2025 | 11 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fuel filter
US-2020406177-A1 · Dec 31, 2020 · US
Filter Element of a Filter for Liquid, Filter and Filter Housing
US-2020360841-A1 · Nov 19, 2020 · US
Air filter cartridge with internal structure
US-10814265-B2 · Oct 27, 2020 · US
Fuel filter insert with a prefilter and a main filter element, and fuel filter
US-10773190-B2 · Sep 15, 2020 · US
Fuel filter insert, and fuel filter comprising a prefilter element and a main filter element and comprising a water separating unit
US-10765977-B2 · Sep 8, 2020 · US
Pressure medium unit, in particular for setting and/or regulating a brake pressure in a vehicle brake system having electronic slip regulation, and cap-shaped filter element
US-10737211-B2 · Aug 11, 2020 · US
Filter Device, in Particular for Gas Filtration
US-2020179852-A1 · Jun 11, 2020 · US
Fuel filter comprising a fuel filter insert with a prefilter element and a main filter element
US-10668410-B2 · Jun 2, 2020 · US
Filter coupling device and a substrate treating apparatus having same
US-10617983-B2 · Apr 14, 2020 · US
Particle filter as well as method for the manufacture thereof
US-2020108341-A1 · Apr 9, 2020 · US
Oil water separator diffuser cap extension to filter cartridge
US-10603610-B2 · Mar 31, 2020 · US
Particle filter as well as method for the manufacture thereof
US-10537841-B2 · Jan 21, 2020 · US
Filter element locking mechanism for clean service
US-2019270039-A1 · Sep 5, 2019 · US
Liquid Cleaning Element, Liquid Cleaning System, and Method for Producing a Liquid Cleaning Element
US-2019247771-A1 · Aug 15, 2019 · US
Pool cleaner
US-10378228-B2 · Aug 13, 2019 · US
Filter element locking mechanism for clean service
US-10343090-B2 · Jul 9, 2019 · US
Rotary Vessel for a Filter Assembly
US-2019176067-A1 · Jun 13, 2019 · US
Vessel screen retaining system and method
US-2019069594-A1 · Mar 7, 2019 · US
Fluid purification device
US-2019070535-A1 · Mar 7, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2201/40?
- CPC B01D2201/40 is the Cooperative Patent Classification code for “Special measures for connecting different parts of the filter.”
- How many patents are filed under CPC B01D2201/40 (Special measures for connecting different parts of the filter)?
- Our database includes 123 publications tagged with this CPC code.
- Is patent activity under CPC B01D2201/40 growing?
- Publication counts under this code: 12 in 2024 vs 11 in 2025 (latest complete years).