Electronic cigarette
US-10143234-B2 · Dec 4, 2018 · US
by introducing liquids into gaseous media
by introducing liquids into gaseous media · 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 | B01F23/21 |
| Official title | by introducing liquids into gaseous media |
| Display label | by introducing liquids into gaseous media |
| Total patents | 127 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 17 |
| 2017 | 13 |
| 2018 | 23 |
| 2019 | 13 |
| 2020 | 9 |
| 2021 | 6 |
| 2022 | 10 |
| 2023 | 10 |
| 2024 | 7 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Respiratory gas humidifier
US-10130784-B2 · Nov 20, 2018 · US
Apparatus for both humidification and air cleaning
US-10072857-B2 · Sep 11, 2018 · US
Remote controllable air treatment apparatus
US-10065138-B2 · Sep 4, 2018 · US
Apparatus for both humidification and air cleaning
US-10054322-B2 · Aug 21, 2018 · US
Apparatus for both humidification and air cleaning
US-10054323-B2 · Aug 21, 2018 · US
Conditioning module for regulating the temperature of and humidifying a flowing gas
US-10046286-B2 · Aug 14, 2018 · US
Microfluidic delivery system for releasing fluid compositions
US-10040090-B2 · Aug 7, 2018 · US
Humidifier, in particular for a fuel cell
US-10044051-B2 · Aug 7, 2018 · US
Vapor device for filtering and testing material
US-10042369-B2 · Aug 7, 2018 · US
Methods and systems for a mixer
US-10040028-B2 · Aug 7, 2018 · US
Air analyzer, treatment and peer networking apparatus
US-2018217616-A1 · Aug 2, 2018 · US
Vapor device for filtering and testing material
US-2018217617-A1 · Aug 2, 2018 · US
System for a urea mixer
US-10035102-B2 · Jul 31, 2018 · US
Fan coil apparatus including a humidification unit and a humidification unit
US-2018172299-A1 · Jun 21, 2018 · US
Exhaust gas flow mixer
US-9975093-B2 · May 22, 2018 · US
Partition member for total heat exchange element, total heat exchange element using this member, and total heat exchange type ventilation device
US-9879869-B2 · Jan 30, 2018 · US
Humidifier and method of hydrophilization processing for humidifying material
US-9845961-B2 · Dec 19, 2017 · US
Diesel exhaust fluid mixing system for a linear arrangement of diesel oxidation catalyst and selective catalytic reduction filter
US-9821282-B2 · Nov 21, 2017 · US
Respiratory gas humidifier
US-2017246416-A1 · Aug 31, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01F23/21?
- CPC B01F23/21 is the Cooperative Patent Classification code for “by introducing liquids into gaseous media.”
- How many patents are filed under CPC B01F23/21 (by introducing liquids into gaseous media)?
- Our database includes 127 publications tagged with this CPC code.
- Is patent activity under CPC B01F23/21 growing?
- Publication counts under this code: 7 in 2024 vs 5 in 2025 (latest complete years).