ClassID:

131134

E04F17/04 - CPC Classification

Classification description:

Vertical ducts; Channels, e.g. for drainage Air-ducts or air channels

Recent Application in this class:
#1
20260139495
2026-05-21

MODULAR LAMINAR SPACE FORMATION APPARATUS

#2
20250137267
2025-05-01

Roof vent with contoured foot

#3
20240393001
2024-11-28

WIND DUCT WITH SILENCER

#4
20240200340
2024-06-20

Building panel system

#5
20240151427
2024-05-09

Duct support assembly and method of using a duct support

#6
20220364356
2022-11-17

SYSTEMS, METHODS AND MACHINE READABLE PROGRAMS FOR MEASURING, RECORDING, AND ACCESSING DATA FOR IMPROVED SELECTION OF CLOTHING

#7
20220205254
2022-06-30

Roof vent with contoured foot

#8
20210372145
2021-12-02

Rooftop Exhaust System for Exhausting Air from a Building

#9
20210207362
2021-07-08

VENTILATED STRUCTURAL PANELS AND METHOD OF CONSTRUCTION WITH VENTILATED STRUCTURAL PANELS

#10
20210189715
2021-06-24

Frameless construction method using single and double plenum panels

#11
20210180334
2021-06-17

Sustainable net zero modular building and assembly method

#12
20210095896
2021-04-01

Building Designs and Heating and Cooling Systems

#13
20210071412
2021-03-11

DEVICES AND METHODS TO PROVIDE AIR CIRCULATION SPACE PROXIMATE TO INSULATION MATERIAL

#14
20210048217
2021-02-18

Duct support assembly and method of using a duct support

#15
20200248449
2020-08-06

Universal pre-fabricated operating room ceiling system

#16
20200103128
2020-04-02

Geothermal insulation system and method

#17
20190376279
2019-12-12

DEVICES AND METHODS TO PROVIDE AIR CIRCULATION TO INSULATION MATERIAL

#18
20190210317
2019-07-11

Frameless construction using single and double plenum panels

#19
20190127995
2019-05-02

Rigging lift and method of use

#20
20190024947
2019-01-24

Building designs and heating and cooling systems

#21
20180334811
2018-11-22

Method for improving the ventilation effectiveness of large conditioned air plenum environments including such environments in multilevel raised floor electro-mechanical distribution systems

#22
20180305919
2018-10-25

COMBINED AIR PASSAGE FOR AIR-SUPPORTED BUILDING AND AIR-SUPPORTED BUILDING

#23
20170299204
2017-10-19

Building structure for a multi-story building

#24
20170138639
2017-05-18

Building designs and heating and cooling systems

#25
20170130984
2017-05-11

Fire-rated modular duct assembly suitable for exhausting flammable or hazardous gases, vapours and other materials

#26
20170002579
2017-01-05

Reconfigurable residential unit

#27
20160326739
2016-11-10

Insulative building panels

#28
20160297040
2016-10-13

Apparatus and method for placement of angle plates in transverse duct flanges

#29
20160245552
2016-08-25

Building designs and heating and cooling systems

#30
20160168847
2016-06-16

Foldable sensory isolation booth

#31
20160053499
2016-02-25

Exhaust gas panel vent assembly for roof-mounted photovoltaic systems

#32
20150308102
2015-10-29

Construction device for releasing moisture from a building

#33
20150292767
2015-10-15

Apparatus and method for placement of angle plates in transverse duct flanges

#34
20150267937
2015-09-24

Fire-rated modular duct assembly suitable for exhausting flammable or hazardous gases, vapours and other materials

#35
20150219358
2015-08-06

System for optimising an environmental parameter of an enclosed space

#36
20150075095
2015-03-19

Construction device for releasing moisture from a building

#37
20140319165
2014-10-30

Apparatus and method for placement of angle plates in transverse duct flanges

#38
20140318054
2014-10-30

Removable bulkheads for building fixtures

#39
20140215944
2014-08-07

Wood deck with boards and connectors

#40
20140199938
2014-07-17

APPARATUS FOR EXHAUSTING AIR

#41
20140013687
2014-01-16

Wall for separating the inside of a building from the outside

#42
20130247489
2013-09-26

ATTIC CONDITIONING SYSTEM AND METHOD

#43
20130205708
2013-08-15

INSULATED/SOFFIT RAFTER VENT

#44
20130174934
2013-07-11

Fire-rated modular duct assembly suitable for exhausting flammable or hazardous gases, vapours and other materials

#45
20120302151
2012-11-29

Intake and Exhaust Method and A Structure Utilizing the Same

#46
20120211993
2012-08-23

Converting wind energy to electrical energy

#47
20120192511
2012-08-02

Continuous heat welded flexible PVC membrane with an interlocking vapor barrier system and including sensor detection features associated with each of a plurality of overlapping membrane sections

#48
20120167498
2012-07-05

Removable bulkheads for building fixtures

#49
20120144763
2012-06-14

Roof panel systems for building construction

#50
20120009864
2012-01-12

Negative-pressure smoke-guiding fireproof building structure

#51
20110133480
2011-06-09

Converting wind energy to electrical energy

#52
20110133462
2011-06-09

Converting wind energy to electrical energy

#53
20100269943
2010-10-28

DUCT STRUCTURE OF A HOLLOW WALL USING A THROUGH-PASS DUCT MEMBER

#54
20100257795
2010-10-14

Building-integrated system for capturing and harvesting the energy from environmental wind

#55
20090183453
2009-07-23

APPARATUS FOR PROVIDING AIR FLOW IN A BUILDING WALL

#56
20090165776
2009-07-02

Metal sheet ventilation/smoke duct section and manufacturing method thereof

#57
20090159718
2009-06-25

Building designs and heating and cooling systems

#58
20090133957
2009-05-28

Sound attenuating air vent

#59
20090011696
2009-01-08

Ventilation device and frame system

#60
20080236058
2008-10-02

Roof panel systems for building construction

#61
20080223652
2008-09-18

Single duct silencing terminal unit

#62
20070033888
2007-02-15

Cap-on-cap mounting block

#63
20060278775
2006-12-14

Adjustable mount assembly

#64
20060123724
2006-06-15

Device and method to provide air circulation space proximate to insulation material

#65
20060054380
2006-03-16

Acoustic absorbers for use with computer cabinet fans and other cooling systems

#66
20050204664
2005-09-22

Register grille and connector frame with releasable connection

#67
20050166499
2005-08-04

In-wall ventilation housing

#68
20050076668
2005-04-14

Noise attenuating device for a heating-ventilation-cooling system of a motor vehicle

#69
20050034407
2005-02-17

Support frame for duct

#70
20050034390
2005-02-17

Raceway construction for an air handing unit

#71
20050005548
2005-01-13

Dryer venting apparatus, techniques and installation kit

#72
18821706
2025-08-26

Exterior wall port for portable air conditioning units

#73
15079464
2019-05-21

Two-section wooden enclosure for a hydronic baseboard finned tube heater

#74
15047204
2017-12-05

Thermal break system for wall panels secured to an existing wall

#75
14738842
2015-10-06

Construction device for releasing moisture from a building