E21F5/12 - CPC Classification Index

ClassID:

136270 ⎘

E21F5/12 - 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 Composition of rock dust

Recent Application in this class:

20250136855

2025-05-01

PROCESS FOR OBTAINING ORE DUST SUPPRESSANT RESIN, ORES DUST SUPPRESSANT RESIN, PROCESS FOR INHIBITION OF ORE PARTICULATE EMISSION AND RESIN USE

20200254291

2020-08-13

SPRAYABLE FOAMED ROCK DUST COMPOSITION AND METHOD OF USING THE SAME

20200109629

2020-04-09

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

20180291246

2018-10-11

PROCESS FOR OBTAINING ORE DUST SUPPRESSANT RESIN, ORES DUST SUPPRESSANT RESIN, PROCESS FOR INHIBITION OF ORE PARTICULATE EMISSION AND RESIN USE

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

20150037496

2015-02-05

TREATMENTS FOR NON-CAKING MINE ROCK DUST

20150008369

2015-01-08

Non-caking rock dust for use in underground coal mines

20140265523

2014-09-18

Aerated rock dust

#10

20120280558

2012-11-08

Foam Configured to Suppress Dust on a Surface to be Worked

#11

20120279003

2012-11-08

Foam Configured to Suppress Dust on a Surface to be Worked

#12

20120111583

2012-05-10

STONE DUSTING

#13

17241152

2022-06-14

Mine safety dust and method of production