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CPC
E21F5/04
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
E21F
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
E21F5/00
Means or methods for preventing, binding, depositing, or removing dust Preventing explosions or fires
Current Industry
E21F5/04
Spraying barriers
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Patents Grants
last 30 patents
Information
Patent Grant
Gas-liquid spray dust settlement system for fully mechanized mining...
Patent number
11,873,719
Issue date
Jan 16, 2024
ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Liang Yuan
E21 - EARTH DRILLING MINING
Information
Patent Grant
High-temperature high-efficiency explosion-proof integrated modular...
Patent number
11,781,431
Issue date
Oct 10, 2023
Guoke Yongji (Beijing) Engineering Installation Co., Ltd.
Qianfu Xing
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Sprayer for settling dust of coal mine
Patent number
11,492,906
Issue date
Nov 8, 2022
ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Liang Yuan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Absorption-induction convectional dust-controlling/removing air/fog...
Patent number
11,028,693
Issue date
Jun 8, 2021
Shandong University of Science and Technology
Wen Nie
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods of and systems for controlling dust
Patent number
10,927,280
Issue date
Feb 23, 2021
Ecolab USA Inc.
Kevin O'Brien
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Combined automatic anti-explosion method for gas drainage pipeline
Patent number
10,612,379
Issue date
Apr 7, 2020
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Caiping Lu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Quick connect fire and dust suppression system
Patent number
9,086,180
Issue date
Jul 21, 2015
Frank Thomas Porta
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Method and apparatus for stopping the spread of a fire in an underg...
Patent number
5,909,777
Issue date
Jun 8, 1999
Jamison Family Trust
Will B. Jamison
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for dust control treatment
Patent number
3,961,752
Issue date
Jun 8, 1976
Cominco Ltd.
Gerard Doeksen
E21 - EARTH DRILLING MINING
Information
Patent Grant
3906733
Patent number
3,906,733
Issue date
Sep 23, 1975
E21 - EARTH DRILLING MINING
Information
Patent Grant
2059639
Patent number
2,059,639
Issue date
Nov 3, 1936
E21 - EARTH DRILLING MINING
Information
Patent Grant
1552487
Patent number
1,552,487
Issue date
Sep 8, 1925
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
CONTROL OF DUST FORMATION IN DEMOLITION WORK WITH A TOOL-CARRYING W...
Publication number
20220401986
Publication date
Dec 22, 2022
BROKK AKTIEBOLAG
Stefan ANDERSSON
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Application
GAS-LIQUID SPRAY DUST SETTLEMENT SYSTEM FOR FULLY MECHANIZED MINING...
Publication number
20220316336
Publication date
Oct 6, 2022
ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Liang YUAN
E21 - EARTH DRILLING MINING
Information
Patent Application
SPRAYER FOR SETTLING DUST OF COAL MINE
Publication number
20220205360
Publication date
Jun 30, 2022
ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY
Liang YUAN
E21 - EARTH DRILLING MINING
Information
Patent Application
HIGH-TEMPERATURE HIGH-EFFICIENCY EXPLOSION-PROOF INTEGRATED MODULAR...
Publication number
20220145760
Publication date
May 12, 2022
Guoke Yongji (Beijing) Engineering Installation Co., Ltd.
Qianfu Xing
E21 - EARTH DRILLING MINING
Information
Patent Application
ABSORPTION-INDUCTION CONVECTIONAL DUST-CONTROLLING/REMOVING AIR/FOG...
Publication number
20210047927
Publication date
Feb 18, 2021
SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Wen NIE
E21 - EARTH DRILLING MINING
Information
Patent Application
Methods of and Systems for Controlling Dust
Publication number
20170130109
Publication date
May 11, 2017
ECOLAB USA INC.
Kevin O'Brien
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Application
QUICK CONNECT FIRE AND DUST SUPPRESSION SYSTEM
Publication number
20130014963
Publication date
Jan 17, 2013
Frank Thomas Porta
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...