ClassID:

158313

F24F2011/0005 - CPC Classification

Classification description:

Control or safety arrangements for ventilation for admittance of outside air to create underpressure in a room, keeping contamination inside

Recent Application in this class:
#1
20250224126
2025-07-10

INDOOR AIR CLEANING SYSTEM

#2
20240328647
2024-10-03

Facility

#3
20240272131
2024-08-15

PROGRAMMABLE LOGIC CONTROLLER-BASED SYSTEM AND USER INTERFACE FOR AIR SAMPLING IN CONTROLLED ENVIRONMENTS

#4
20240271807
2024-08-15

HVAC System and Method Using Exhaust Driven Air Transfer

#5
20240210056
2024-06-27

VENTILATION SYSTEM

#6
20230093603
2023-03-23

Apparatus having a protective envelope, use thereof, and method for operating a room region

#7
20220331181
2022-10-20

DIAGNOSTIC APPARATUS HAVING NEGATIVE PRESSURE ROOM

#8
20220252290
2022-08-11

IMPROVEMENTS IN OR RELATING TO CONTROL SYSTEMS FOR USE WITH HOT WORK ENCLOSURES OR HABITATS

#9
20210353484
2021-11-18

NEGATIVE PRESSURE PROTECTION SYSTEM

#10
20210144950
2021-05-20

Air filtration and control system for an animal housing

#11
20210041407
2021-02-11

Programmable logic controller-based system and user interface for air sampling controlled environments

#12
20200041150
2020-02-06

Vapor mitigation system, vapor mitigation controller and methods of controlling, monitoring and mitigating vapors

#13
20190226706
2019-07-25

Evaporator coil protection for HVAC systems

#14
20190021272
2019-01-24

Air filtration and control system for an animal housing

#15
20180259205
2018-09-13

Laboratory ventilation integration

#16
20180038605
2018-02-08

Liquefied petroleum gas solvent extraction room ventilation system and methods

#17
20160018123
2016-01-21

Instruction device, and air conditioning system

#18
20140252099
2014-09-11

Vapor mitigation system, vapor mitigation controller and methods of controlling, monitoring and mitigating vapors

#19
20140099872
2014-04-10

Ventilation system, ventilation method, ventilation control device, and non-transitory computer-readable recording medium

#20
20130040548
2013-02-14

Fan flow synchronizer

#21
20110300790
2011-12-08

Control device for ventilation and air conditioning systems

#22
20110219665
2011-09-15

Method for removing or treating harmful biological and chemical substances within structures and enclosures

#23
20100204835
2010-08-12

Device and Method to Dehumidify and to Pressurize Spaces to Pressure Below Atmospheric Pressure

#24
20090294116
2009-12-03

Device for minimizing an undesired passage of fluid from a first sector to a second sector as well as a heat exchanger system comprising such a device

#25
20090071062
2009-03-19

Method of treating for pests

#26
20090047894
2009-02-19

Pressure control with coarse and fine adjustment

#27
20080278041
2008-11-13

Cable port for biosafety cabinet

#28
20080250800
2008-10-16

Total room air purification system with air conditioning, filtration and ventilation

#29
20080182503
2008-07-31

Negative air supplied (NAS) crawlspace system

#30
20070207724
2007-09-06

Air pressure control system and method

#31
20070149108
2007-06-28

Device for generating a negative pressure in the sealed room of a tablet press and/or of an isolator

#32
20070066205
2007-03-22

Clean room unit

#33
20060148397
2006-07-06

Contaminant containing apparatus and method

#34
20060111036
2006-05-25

Portable smoking room

#35
20060107635
2006-05-25

Modular biosafety containment apparatus and system

#36
20060021375
2006-02-02

Environmental control unit for hospital room

#37
20050220662
2005-10-06

Method for removing or treating harmful biological and chemical substances within structures and enclosures

#38
20050211415
2005-09-29

Integrated air processing devices and isolation containment systems using such devices