Heat exchanger for gas turbine engines
US-10041741-B2 · Aug 7, 2018 · US
Heating or cooling the filters
Heating or cooling the filters · 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 | B01D35/18 |
| Official title | Heating or cooling the filters |
| Display label | Heating or cooling the filters |
| Total patents | 210 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 19 |
| 2017 | 25 |
| 2018 | 20 |
| 2019 | 32 |
| 2020 | 19 |
| 2021 | 27 |
| 2022 | 17 |
| 2023 | 9 |
| 2024 | 13 |
| 2025 | 12 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electric heating for fuel system components
US-2018016024-A1 · Jan 18, 2018 · US
Screen and screen elements for fuel systems
US-9821255-B2 · Nov 21, 2017 · US
Water purifier
US-2017327388-A1 · Nov 16, 2017 · US
Induction heating module and water purifier having the same
US-2017321927-A1 · Nov 9, 2017 · US
Induction heating module and water purifier having the same
US-2017321931-A1 · Nov 9, 2017 · US
Filter element of a filter and method for manufacturing filter element
US-9808750-B2 · Nov 7, 2017 · US
Heater device of diesel fuel filter
US-9810181-B2 · Nov 7, 2017 · US
Heating device
US-2017296728-A1 · Oct 19, 2017 · US
Integrated smart fuel filtration system
US-2017298881-A1 · Oct 19, 2017 · US
Water dispenser
US-2017291807-A1 · Oct 12, 2017 · US
Filter assemblies, filter elements, and methods for filtering liquids
US-9782702-B2 · Oct 10, 2017 · US
Fluid system with at least one heating device for fluid, and heating device
US-9763286-B2 · Sep 12, 2017 · US
Filter Element Having Projecting Bayonet-Type Protrusion
US-2017252684-A1 · Sep 7, 2017 · US
Clean-Side Water-Separating Filter Element Having Bayonet Connection, and Fuel Filter Having a Filter Element of This Type
US-2017252683-A1 · Sep 7, 2017 · US
Oil filter systems
US-9745876-B2 · Aug 29, 2017 · US
Filter assembly
US-2017203237-A9 · Jul 20, 2017 · US
Tank insert module, liquid tank
US-9702287-B2 · Jul 11, 2017 · US
Filter System and Filtration Method for Fluid Reservoirs
US-2017189837-A1 · Jul 6, 2017 · US
Modular filter capsule apparatus
US-9682335-B2 · Jun 20, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D35/18?
- CPC B01D35/18 is the Cooperative Patent Classification code for “Heating or cooling the filters.”
- How many patents are filed under CPC B01D35/18 (Heating or cooling the filters)?
- Our database includes 210 publications tagged with this CPC code.
- Is patent activity under CPC B01D35/18 growing?
- Publication counts under this code: 13 in 2024 vs 12 in 2025 (latest complete years).