ClassID:

84655

C01B21/0461 - CPC Classification

Classification description:

Nitrogen; Compounds thereof; Purification or separation of nitrogen; Purification or separation processes; Physical processing only by adsorption in solids characterised by the adsorbent Carbon based materials

Recent Application in this class:
#1
20250136457
2025-05-01

GEOTHERMALLY DRIVEN AMMONIA PRODUCTION

#2
20200009493
2020-01-09

Nitrogen service supply system

#3
20190292067
2019-09-26

Method for the Production of Highly Pure Birnessite

#4
20190150484
2019-05-23

Refrigerator

#5
20190145691
2019-05-16

Refrigerating and freezing device

#6
20150083972
2015-03-26

Method for purification of ammonia, mixtures of nitrogen and hydrogen, or nitrogen, hydrogen and ammonia

#7
20140326139
2014-11-06

Method for producing nitrogen gas, method for separating gas and device for producing nitrogen gas

#8
20120237830
2012-09-20

Non-thermofusible phenol resin powder, method for producing the same, thermosetting resin composition, sealing material for semiconductor, and adhesive for semiconductor

#9
20120135238
2012-05-31

Non-thermofusible phenol resin powder, method for producing the same, thermosetting resin composition, sealing material for semiconductor, and adhesive for semiconductor

#10
20100139485
2010-06-10

GAS RECOVERY PROCESS

#11
20100075228
2010-03-25

Non-thermofusible phenol resin powder, method for producing the same, thermosetting resin composition, sealing material for semiconductor, and adhesive for semiconductor

#12
20100074831
2010-03-25

Non-thermofusible phenol resin powder, method for producing the same, thermosetting resin composition, sealing material for semiconductor, and adhesive for semiconductor

#13
20100004356
2010-01-07

Non-thermofusible phenol resin powder, method for producing the same, thermosetting resin composition, sealing material for semiconductor, and adhesive for semiconductor

#14
20070261550
2007-11-15

Method of separating nitrogen gas and molecular sieve carbon