ClassID:

30172

B01D2221/16 - CPC Classification

Classification description:

Applications of separation devices Separation devices for cleaning ambient air, e.g. air along roads or air in cities

Recent Application in this class:
#1
20260138077
2026-05-21

BLUE CARBON PROCESS AND SYSTEM FOR DIRECT AIR CARBON CAPTURE AND STORAGE

#2
20250367587
2025-12-04

A UNIT DESIGN AND PROCESS FOR DIRECT CAPTURE OF CARBON DIOXIDE FROM AIR

#3
20250345745
2025-11-13

Atmospheric Water Capturing Device, And Systems And Methods Of Using Same

#4
20250339800
2025-11-06

AIR PRECLEANER

#5
20250214031
2025-07-03

SYSTEM FOR GENERATING LIQUID WATER FROM AIR

#6
20250144564
2025-05-08

Carbon Capture Entrainment System and Method

#7
20250121317
2025-04-17

CARBON DIOXIDE CAPTURE AND SEQUESTRATION SYSTEM

#8
20240392579
2024-11-28

CARBON SEQUESTERING INFRASTRUCTURE

#9
20240299877
2024-09-12

Fully Automated Direct Air Capture Carbon Dioxide Processing System

#10
20240224889
2024-07-11

MESOPOROUS SOLID FOR CONTROLLING HUMIDITY IN ENCLOSED SPACES

#11
20240189765
2024-06-13

SYSTEM AND METHOD FOR COMBINED ATMOSPHERIC WATER EXTRACTION AND CARBON CAPTURE

#12
20240109032
2024-04-04

DIRECT AIR CAPTURE OF CARBON DIOXIDE BY INOCULATION OF TROPOSPHERIC CLOUDS WITH ALGAE

#13
20230398489
2023-12-14

CARBON DIOXIDE RECOVERY DEVICE

#14
20230381709
2023-11-30

Adsorption system

#15
20230321580
2023-10-12

AMBIENT AIR PURIFICATION DEVICE

#16
20230311054
2023-10-05

AIR TREATMENT DEVICE

#17
20230226484
2023-07-20

Fully Automated Direct Air Capture Carbon Dioxide Processing System

#18
20230158450
2023-05-25

System for Capturing Carbon Dioxide and Other Gases

#19
20230137540
2023-05-04

FILTER

#20
20230130721
2023-04-27

INTENSIFIED CARBON CAPTURE USING BUILDING INFRASTRUCTURE

#21
20230073553
2023-03-09

Continuous processes and systems to reduce energy requirements of using zeolites for carbon capture under humid conditions

#22
20220331732
2022-10-20

Apparatus and method for air purification and power generation

#23
20220212141
2022-07-07

Carbon dioxide capture

#24
20200353394
2020-11-12

Multi-vane vortex tubes for motor vehicles

#25
20200338489
2020-10-29

Filter element

#26
20200200408
2020-06-25

Electrostatic charging air cleaning device

#27
20200141595
2020-05-07

Auxiliary filter for the indoor unit of a mini-split heat pump

#28
20190344288
2019-11-14

Filter

#29
20190060830
2019-02-28

System for carbon abatement naturally over paved environments

#30
20160089625
2016-03-31

Composition and method of dust suppression wetting agents

#31
20150321134
2015-11-12

Method and device for removing airborne pollutants

#32
20130040373
2013-02-14

Composition and method for dust suppression wetting agent

#33
20080282655
2008-11-20

Green house gases filtration system

#34
17948492
2023-03-28

Fully automated direct air capture carbon dioxide processing system

#35
17232901
2022-03-22

Apparatus and method for air purification and power generation

#36
16194436
2019-08-06

System, method, and apparatus to reduce urban air pollution