C01B21/00 - CPC Classification Index

ClassID:

84642 ⎘

C01B21/00 - CPC Classification

Classification description:

Nitrogen; Compounds thereof

Sub-classes:

C01B21/02 » Preparation of nitrogen 55
C01B21/04 » Purification or separation of nitrogen 8
C01B21/06 » Binary compounds of nitrogen with metals, with silicon, or with boron, {or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron} 59
C01B21/08 » Hydrazoic acid; Azides; Halogen azides 8
C01B21/082 » Compounds containing nitrogen and non-metals {and optionally metals} 18
C01B21/20 » Nitrogen oxides; Oxyacids of nitrogen; Salts thereof 16

Recent Application in this class:

20240391772

METHOD FOR PRODUCING THE PENTAZOLATE ANION USING A HYPERVALENT IODINE OXIDANT

20240245322

APPARATUS AND ASSOCIATED ACCESSORIES, METHODS AND USES FOR VISUALISING A PRINT ON AN OBJECT

20210393169

Apparatus and associated accessories, methods and uses for visualising a print on an object

20210088284

CRYOGENIC COOLING COMPOSITION AND METHOD

20190143263

Compact membrane module system for gas separation

20190032886

Fluorescent member and light-emitting module

20180362855

Integrated thermal processing for mesophase pitch production, asphaltene removal, and crude oil and residue upgrading

20180258007

TUNGSTEN OXIDE PRIMER COMPOSITIONS

20160340181

Method for storing a gas in a metal organic framework and dissolved in a liquid carrier

20140070137

Method for the preparation of anhydrous hydrogen halides, inorganic substances and/or inorganic hydrides by using as reactants inorganic halides and reducing agents

20130343979

Highly efficient method for producing ceramic microparticles

20080072609

Process for producing slush fluid and apparatus therefor

20060266078

Method and apparatus for producing slush nitrogen