Ventilation at the working face of galleries or tunnels

Industry

CPC
E21F1/006

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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

E21F1/006Ventilation at the working face of galleries or tunnels

Industries

Patents Grantslast 30 patents

Information Patent Grant
Methane watchdog system, a cost effective approach to longwall meth...
- Patent number 12,031,888
- Issue date Jul 9, 2024
- West Virginia University
- Derek Johnson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Kind of no-pillar and gob-side entry retaining mining and construct...
- Patent number 11,746,654
- Issue date Sep 5, 2023
- Shandong University of Science and Technology
- Qihua Ma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Split air cabin ventilation system for construction of tunnel incli...
- Patent number 11,674,392
- Issue date Jun 13, 2023
- CHINA RAILWAY BEIJING ENGINEERING GROUP CO., LTD
- Shuangqin Chen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Blowing curtain face ventilation system for extended cut mining usi...
- Patent number 10,900,357
- Issue date Jan 26, 2021
- University of Kentucky Research Foundation
- Andrzej M. Wala
- 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
Longwall mine construction method N00
- Patent number 10,494,924
- Issue date Dec 3, 2019
- Manchao He
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for controlling longwall operations with incorporation of ai...
- Patent number 8,380,345
- Issue date Feb 19, 2013
- RAG Aktiengesselschaft
- Martin Junker
- E21 - EARTH DRILLING MINING
Information Patent Grant
3919930
- Patent number 3,919,930
- Issue date Nov 18, 1975
- E21 - EARTH DRILLING MINING
Information Patent Grant
3824911
- Patent number 3,824,911
- Issue date Jul 23, 1974
- E21 - EARTH DRILLING MINING
Information Patent Grant
3225678
- Patent number 3,225,678
- Issue date Dec 28, 1965
- E21 - EARTH DRILLING MINING
Information Patent Grant
2859682
- Patent number 2,859,682
- Issue date Nov 11, 1958
- E21 - EARTH DRILLING MINING
Information Patent Grant
1642885
- Patent number 1,642,885
- Issue date Sep 20, 1927
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Three-Dimensional Ventilation Method And System For Mining By 110 C...
- Publication number 20230175398
- Publication date Jun 8, 2023
- CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
- Jiong Wang
- E21 - EARTH DRILLING MINING
Information Patent Application
A Kind of No-Pillar and Gob-Side Entry Retaining Mining and Constru...
- Publication number 20230103613
- Publication date Apr 6, 2023
- Shandong University of Science and Technology
- Qihua MA
- E21 - EARTH DRILLING MINING
Information Patent Application
METHANE WATCHDOG SYSTEM, A COST EFFECTIVE APPROACH TO LONGWALL METH...
- Publication number 20210348988
- Publication date Nov 11, 2021
- West Virginia University Board of Governors on behalf of West Virginia Univer...
- Derek Johnson
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD OF MINING SINGLE STEEPLY-INCLINED THICK COAL SEAM
- Publication number 20200024944
- Publication date Jan 23, 2020
- Shandong University of Science and Technology
- Zhongping GUO
- E21 - EARTH DRILLING MINING
Information Patent Application
LONGWALL MINE CONSTRUCTION METHOD N00
- Publication number 20180187547
- Publication date Jul 5, 2018
- Manchao He
- E21 - EARTH DRILLING MINING
Information Patent Application
UNDERGROUND VENTILATION APPARATUS AND METHOD
- Publication number 20170362937
- Publication date Dec 21, 2017
- POLYVENT PTY LTD
- Joseph Ianni
- E21 - EARTH DRILLING MINING
Information Patent Application
ENSURING WORKING CONDITIONS ALONG A LONGWALL FACE
- Publication number 20160024922
- Publication date Jan 28, 2016
- CATERPILLAR GLOBAL MINING EUROPE GMBH
- Reiner SCHUSTER
- E21 - EARTH DRILLING MINING
Information Patent Application
BLOWING CURTAIN FACE VENTILATION SYSTEM FOR EXTENDED CUT MINING USI...
- Publication number 20140329453
- Publication date Nov 6, 2014
- University of Kentucky Research Foundation
- Andrzej M. Wala
- E21 - EARTH DRILLING MINING
Information Patent Application
Method for Controlling Longwall Operations with Incorporation of Ai...
- Publication number 20110029138
- Publication date Feb 3, 2011
- RAG AKTIENGESELLSCHAFT
- Martin Junker
- E21 - EARTH DRILLING MINING

Ventilation at the working face of galleries or tunnels

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Methane watchdog system, a cost effective approach to longwall meth...

Kind of no-pillar and gob-side entry retaining mining and construct...

Split air cabin ventilation system for construction of tunnel incli...

Blowing curtain face ventilation system for extended cut mining usi...

Underground ventilation apparatus and method

Longwall mine construction method N00

Method for controlling longwall operations with incorporation of ai...

3919930

3824911

3225678

2859682

1642885

Patents Applicationslast 30 patents

Three-Dimensional Ventilation Method And System For Mining By 110 C...

A Kind of No-Pillar and Gob-Side Entry Retaining Mining and Constru...

METHANE WATCHDOG SYSTEM, A COST EFFECTIVE APPROACH TO LONGWALL METH...

METHOD OF MINING SINGLE STEEPLY-INCLINED THICK COAL SEAM

LONGWALL MINE CONSTRUCTION METHOD N00

UNDERGROUND VENTILATION APPARATUS AND METHOD

ENSURING WORKING CONDITIONS ALONG A LONGWALL FACE

BLOWING CURTAIN FACE VENTILATION SYSTEM FOR EXTENDED CUT MINING USI...

Method for Controlling Longwall Operations with Incorporation of Ai...