Porous liquid, self-replenishing porous liquid and methods of making and using the same
US-12582939-B2 · Mar 24, 2026 · US
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Types of fibres, filaments or particles, self-supporting or supported materials
Types of fibres, filaments or particles, self-supporting or supported materials · 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 | B01D2239/02 |
| Official title | Types of fibres, filaments or particles, self-supporting or supported materials |
| Display label | Types of fibres, filaments or particles, self-supporting or supported materials |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 5 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aerosol generating system and cartridge with leakage protection
US-12465088-B2 · Nov 11, 2025 · US
Self-supporting filter media
US-2025276264-A1 · Sep 4, 2025 · US
Filter media including fibers comprising a matrix polymer and impact modifier, and related methods
US-2023149839-A1 · May 18, 2023 · US
Porous Liquid, Self-Replenishing Porous Liquid And Methods Of Making And Using The Same
US-2023137305-A1 · May 4, 2023 · US
Coalescing media
US-2023133534-A1 · May 4, 2023 · US
Porous liquid and methods of making and using the same
US-11590447-B2 · Feb 28, 2023 · US
Filtering device, purification device, chemical liquid manufacturing device, filtered substance to be purified, chemical liquid, and actinic ray-sensitive or radiation-sensitive resin composition
US-11559758-B2 · Jan 24, 2023 · US
Filter media comprising fluorinated and non-fluorinated water repellent additives
US-2022161171-A1 · May 26, 2022 · US
Aerosol generating system and cartridge with leakage protection
US-2022015433-A1 · Jan 20, 2022 · US
Carbon membrane for fluid separation and carbon membrane module for fluid separation
US-10994243-B2 · May 4, 2021 · US
Porous liquid, self-replenishing porous liquid and methods of making and using the same
US-2020147543-A1 · May 14, 2020 · US
Porous liquid and methods of making and using the same
US-2020147545-A1 · May 14, 2020 · US
Filtering device, purification device, chemical liquid manufacturing device, filtered substance to be purified, chemical liquid, and actinic ray-sensitive or radiation-sensitive resin composition
US-2020147528-A1 · May 14, 2020 · US
Carbon membrane for fluid separation and carbon membrane module for fluid separation
US-2019176082-A1 · Jun 13, 2019 · US
Formation and immobilization of small particles by using polyelectrolyte multilayers
US-9718013-B2 · Aug 1, 2017 · US