E21F5/08 - CPC Classification Index

ClassID:

136268 ⎘

E21F5/08 - CPC Classification

Classification description:

Means or methods for preventing, binding, depositing, or removing dust ; Preventing explosions or fires Rock dusting of mines; Depositing other protective substances

Sub-classes:

E21F5/10 » Devices for rock dusting 10
E21F5/12 » Composition of rock dust 11

Recent Application in this class:

20210154510

2021-05-27

PLASTIC GEL MATERIAL FOR PREVENTING SPONTANEOUS COMBUSTION OF COAL

20200109629

2020-04-09

Non-caking mine rock dust for use in underground coal mines

20170226854

2017-08-10

Moisture tolerant rock dust and methods of application thereof

20170159437

2017-06-08

Non-caking mine rock dust for use in underground coal mines

20170115188

2017-04-27

Pneumatic mine dust sampling instrument

20150115690

2015-04-30

PROCESS FOR APPLYING ROCK DUST TO A MINE WALL

20120280558

2012-11-08

Foam Configured to Suppress Dust on a Surface to be Worked

20120279003

2012-11-08

Foam Configured to Suppress Dust on a Surface to be Worked

18977743

2025-06-10

Fire-prevention and extinguishing material for plugging air leakage in underground barrier pillar of coal mine and use method thereof