Air ducts

Industry

CPC
E21F1/04

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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS E21F1/00Ventilation of mines or tunnels Distribution of ventilating currents

Current Industry

E21F1/04Air ducts

Industries

Patents Grantslast 30 patents

Information Patent Grant
Nuclear island base slab of nuclear power plant, manufacturing meth...
- Patent number 12,139,868
- Issue date Nov 12, 2024
- Shanghai Nuclear Engineering Research & Design Institute Co., LTD.
- Shujian Cheng
- E21 - EARTH DRILLING MINING
Information Patent Grant
Vertical orthogonal top exhausting air duct structure of deeply-bur...
- Patent number 12,025,008
- Issue date Jul 2, 2024
- Beijing Urban Construction Design & Development Group Co., Limited
- Fucai Hua
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ventilation system
- Patent number 11,933,177
- Issue date Mar 19, 2024
- Toyota Jidosha Kabushiki Kaisha
- Masayuki Ito
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Track structure with hollow center rail usable as ventilation duct
- Patent number 11,807,279
- Issue date Nov 7, 2023
- RIINO Inc.
- Aaron Kevin Lambert
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hose for providing an emergency fresh air supply to an underground...
- Patent number 11,739,640
- Issue date Aug 29, 2023
- NOVINIUM, LLC
- Glen John Bertini
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for radially mining open-pit end slope pressed coal
- Patent number 11,377,952
- Issue date Jul 5, 2022
- China University of Mining and Technology
- Nan Zhou
- E21 - EARTH DRILLING MINING
Information Patent Grant
Underground ventilation apparatus and method
- Patent number 10,760,420
- Issue date Sep 1, 2020
- Polyvent PTY LTD
- Joseph Ianni
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Security for grate covering underground air vents
- Patent number 10,619,884
- Issue date Apr 14, 2020
- Floodbreak, L.L.C.
- Louis A. Waters
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Duct with electrically conductive coating
- Patent number 9,618,145
- Issue date Apr 11, 2017
- Hamilton Sundstrand Corporation
- Ricardo O. Brown
- E04 - BUILDING
Information Patent Grant
Mine ventilation structure and a deck panel for such a structure
- Patent number 9,447,685
- Issue date Sep 20, 2016
- Jack Kennedy Metal Products and Buildings, Inc.
- William R. Kennedy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ventilation ducting arrangement
- Patent number 9,200,815
- Issue date Dec 1, 2015
- ABC Industries, Inc.
- Steven S. Fleagle
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Reinforced mine ventilation device
- Patent number 8,220,094
- Issue date Jul 17, 2012
- Kennedy Metal Products & Buildings, Inc.
- William R. Kennedy
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Telescopic ventline
- Patent number 6,669,552
- Issue date Dec 30, 2003
- Ralph G. Beer
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Mine ventilation tubing system and method of installation
- Patent number 5,217,406
- Issue date Jun 8, 1993
- Peabody Coal Company
- Mick E. Toth
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ventilation ducting
- Patent number 5,094,273
- Issue date Mar 10, 1992
- Acme Group Pty Ltd.
- Anthony C. Eagleton
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Method and apparatus for extending ventilation ductwork
- Patent number 4,625,631
- Issue date Dec 2, 1986
- Mobil Oil Corporation
- Samuel I. Vera
- G02 - OPTICS
Information Patent Grant
Apparatus for extending ventilating conduits
- Patent number 4,361,079
- Issue date Nov 30, 1982
- Ruhrkohle AG
- Hans Christensen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for extending ventilating conduits
- Patent number 4,344,357
- Issue date Aug 17, 1982
- Ruhrkohle AG
- Alfred Mittelkotter
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine face ventilation system
- Patent number 4,235,163
- Issue date Nov 25, 1980
- The United States of America as represented by the Secretary of the Interior
- Edward F. Divers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ventilation system for automated mining machines
- Patent number 4,200,036
- Issue date Apr 29, 1980
- The United States of America as represented by the Secretary of the Interior
- Joseph E. Matta
- E21 - EARTH DRILLING MINING
Information Patent Grant
3715969
- Patent number 3,715,969
- Issue date Feb 13, 1973
- E21 - EARTH DRILLING MINING
Information Patent Grant
3491800
- Patent number 3,491,800
- Issue date Jan 27, 1970
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
3289567
- Patent number 3,289,567
- Issue date Dec 6, 1966
- E21 - EARTH DRILLING MINING
Information Patent Grant
3205913
- Patent number 3,205,913
- Issue date Sep 14, 1965
- E21 - EARTH DRILLING MINING
Information Patent Grant
2804095
- Patent number 2,804,095
- Issue date Aug 27, 1957
- E21 - EARTH DRILLING MINING
Information Patent Grant
2590196
- Patent number 2,590,196
- Issue date Mar 25, 1952
- E21 - EARTH DRILLING MINING
Information Patent Grant
2371042
- Patent number 2,371,042
- Issue date Mar 6, 1945
- E21 - EARTH DRILLING MINING
Information Patent Grant
2350158
- Patent number 2,350,158
- Issue date May 30, 1944
- E21 - EARTH DRILLING MINING
Information Patent Grant
2345636
- Patent number 2,345,636
- Issue date Apr 4, 1944
- E21 - EARTH DRILLING MINING
Information Patent Grant
2097663
- Patent number 2,097,663
- Issue date Nov 2, 1937
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
TRACK STRUCTURE WITH CENTER RAIL
- Publication number 20240101162
- Publication date Mar 28, 2024
- RIINO Inc.
- Aaron Kevin Lambert
- B61 - RAILWAYS
Information Patent Application
VERTICAL ORTHOGONAL TOP EXHAUSTING AIR DUCT STRUCTURE OF DEEPLY-BUR...
- Publication number 20240003254
- Publication date Jan 4, 2024
- Beijing Urban Construction Design&Development Group Co., Limited
- Fucai HUA
- E21 - EARTH DRILLING MINING
Information Patent Application
COLLABORATIVE EROSION-CONTROL METHOD OF RELEASING-SPLITTING -SUPPOR...
- Publication number 20230340878
- Publication date Oct 26, 2023
- Shandong University of Science and Technology
- Weiyao GUO
- E21 - EARTH DRILLING MINING
Information Patent Application
NUCLEAR ISLAND BASE SLAB OF NUCLEAR POWER PLANT, MANUFACTURING METH...
- Publication number 20230287645
- Publication date Sep 14, 2023
- Shanghai Nuclear Engineering Research & Design Institute Co., LTD
- Shujian CHENG
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
TRACK STRUCTURE WITH HOLLOW CENTER RAIL USABLE AS VENTILATION DUCT
- Publication number 20230278596
- Publication date Sep 7, 2023
- RIINO Inc.
- Aaron Kevin Lambert
- E21 - EARTH DRILLING MINING
Information Patent Application
VENTILATION SYSTEM
- Publication number 20220034225
- Publication date Feb 3, 2022
- Toyota Jidosha Kabushiki Kaisha
- Masayuki ITO
- E21 - EARTH DRILLING MINING
Information Patent Application
SYNERGISTIC MINING METHOD FOR UNDERGROUND MINING, SEPARATION AND FI...
- Publication number 20210404337
- Publication date Dec 30, 2021
- CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Nong ZHANG
- E21 - EARTH DRILLING MINING
Information Patent Application
GROUND WELLHOLE DEDICATED PROTECTIVE PIPE FOR GAS EXTRACTION OF MIN...
- Publication number 20200217202
- Publication date Jul 9, 2020
- Shandong University of Science and Technology
- Wei LU
- E21 - EARTH DRILLING MINING
Information Patent Application
POLYMER LINER SYSTEM AND METHOD FOR LINING A VERTICAL SHAFT
- Publication number 20200190979
- Publication date Jun 18, 2020
- Advantic LLC
- Bradley Doudican
- E21 - EARTH DRILLING MINING
Information Patent Application
HOSE FOR PROVIDING AN EMERGENCY FRESH AIR SUPPLY TO AN UNDERGROUND...
- Publication number 20200173282
- Publication date Jun 4, 2020
- NOVINIUM, INC.
- Glen John Bertini
- E21 - EARTH DRILLING MINING
Information Patent Application
SECURITY FOR GRATE COVERING UNDERGROUND AIR VENTS
- Publication number 20180119982
- Publication date May 3, 2018
- Louis A. Waters
- F24 - HEATING RANGES VENTILATING
Information Patent Application
VENTILATION DUCT
- Publication number 20180003058
- Publication date Jan 4, 2018
- Hiram (WA) Pty Ltd.
- Steven Peter DURKIN
- B32 - LAYERED PRODUCTS
Information Patent Application
System and method of pouring concrete around a flexible ventilation...
- Publication number 20170190076
- Publication date Jul 6, 2017
- MÉCANICAD INC.
- André Paquet
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
VENTILATION DUCTING SYSTEMS & METHODS
- Publication number 20160333692
- Publication date Nov 17, 2016
- Darren Gilbertson
- F24 - HEATING RANGES VENTILATING
Information Patent Application
SYSTEM AND APPARATUS FOR CONNECTING A GAS SOURCE TO A THERMAL OXIDISER
- Publication number 20130340872
- Publication date Dec 26, 2013
- CORKY'S MANAGEMENT SERVICES PTY LTD
- David John Cork
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
VENTILATION DUCTING ARRANGEMENT
- Publication number 20130220469
- Publication date Aug 29, 2013
- ABC Industries, Inc.
- Steven S. Fleagle
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Reinforced Mine Ventilation Device
- Publication number 20100017975
- Publication date Jan 28, 2010
- KENNEDY METAL PRODUCTS & BUILDINGS, INC.
- William R. Kennedy
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Nuclear island base slab of nuclear power plant, manufacturing meth...

Vertical orthogonal top exhausting air duct structure of deeply-bur...

Ventilation system

Track structure with hollow center rail usable as ventilation duct

Hose for providing an emergency fresh air supply to an underground...

Method for radially mining open-pit end slope pressed coal

Underground ventilation apparatus and method

Security for grate covering underground air vents

Duct with electrically conductive coating

Mine ventilation structure and a deck panel for such a structure

Ventilation ducting arrangement

Reinforced mine ventilation device

Telescopic ventline

Mine ventilation tubing system and method of installation

Ventilation ducting

Method and apparatus for extending ventilation ductwork

Apparatus for extending ventilating conduits

Apparatus for extending ventilating conduits

Mine face ventilation system

Ventilation system for automated mining machines

3715969

3491800

3289567

3205913

2804095

2590196

2371042

2350158

2345636

2097663

Patents Applicationslast 30 patents

TRACK STRUCTURE WITH CENTER RAIL

VERTICAL ORTHOGONAL TOP EXHAUSTING AIR DUCT STRUCTURE OF DEEPLY-BUR...

COLLABORATIVE EROSION-CONTROL METHOD OF RELEASING-SPLITTING -SUPPOR...

NUCLEAR ISLAND BASE SLAB OF NUCLEAR POWER PLANT, MANUFACTURING METH...

TRACK STRUCTURE WITH HOLLOW CENTER RAIL USABLE AS VENTILATION DUCT

VENTILATION SYSTEM

SYNERGISTIC MINING METHOD FOR UNDERGROUND MINING, SEPARATION AND FI...

GROUND WELLHOLE DEDICATED PROTECTIVE PIPE FOR GAS EXTRACTION OF MIN...

POLYMER LINER SYSTEM AND METHOD FOR LINING A VERTICAL SHAFT

HOSE FOR PROVIDING AN EMERGENCY FRESH AIR SUPPLY TO AN UNDERGROUND...

SECURITY FOR GRATE COVERING UNDERGROUND AIR VENTS

VENTILATION DUCT

System and method of pouring concrete around a flexible ventilation...

VENTILATION DUCTING SYSTEMS & METHODS

SYSTEM AND APPARATUS FOR CONNECTING A GAS SOURCE TO A THERMAL OXIDISER

VENTILATION DUCTING ARRANGEMENT

Reinforced Mine Ventilation Device