ClassID:

160415

F25J2215/56 - CPC Classification

Classification description:

Processes characterised by the type or other details of the product stream; Oxygen or special cases, e.g. isotope-mixtures or low purity O Ultra high purity oxygen, i.e. generally more than 99,9% O

Recent Application in this class:
#1
20260063360
2026-03-05

HIGH-PURITY OXYGEN PRODUCTION APPARATUS

#2
20260035243
2026-02-05

SYSTEM AND METHOD FOR PRODUCTION OF ULTRA-HIGH PURITY OXYGEN

#3
20250271208
2025-08-28

PROCESS AND PLANT FOR PROVIDING A NITROGEN PRODUCT, AN OXYGEN PRODUCT AND A HYDROGEN PRODUCT

#4
20250189218
2025-06-12

HIGH-PURITY OXYGEN PRODUCTION METHOD, AND AIR SEPARATION DEVICE FOR PRODUCING HIGH-PURITY OXYGEN

#5
20240393043
2024-11-28

METHOD FOR THE LOW-TEMPERATURE SEPARATION OF AIR AND AIR SEPARATION PLANT

#6
20240377129
2024-11-14

PLANT AND METHOD FOR LOW-TEMPERATURE AIR SEPARATION

#7
20240353173
2024-10-24

ULTRA-HIGH-PURITY OXYGEN PRODUCTION METHOD AND ULTRA-HIGH-PURITY OXYGEN PRODUCTION APPARATUS

#8
20240183610
2024-06-06

METHOD AND PLANT FOR LOW TEMPERATURE FRACTIONATION OF AIR

#9
20240053097
2024-02-15

AIR SEPARATION UNIT AND AIR SEPARATION METHOD

#10
20230358468
2023-11-09

PROCESS AND APPARATUS FOR CRYOGENIC SEPARATION OF AIR WITH MIXED GAS TURBINE

#11
20230168030
2023-06-01

PROCESS FOR CRYOGENIC FRACTIONATION OF AIR, AIR FRACTIONATION PLANT AND INTEGRATED SYSTEM COMPOSED OF AT LEAST TWO AIR FRACTIONATION PLANTS

#12
20230043513
2023-02-09

PROCESS AND PLANT FOR PROVISION OF OXYGEN PRODUCT

#13
20200318898
2020-10-08

Cryogenic air separation apparatus

#14
20190331418
2019-10-31

System and method for high recovery of nitrogen and argon from a moderate pressure cryogenic air separation unit

#15
20180017322
2018-01-18

Method and apparatus for producing compressed nitrogen and liquid nitrogen by cryogenic separation of air

#16
20170205142
2017-07-20

Method for obtaining an air product in an air separation plant and air separation plant

#17
20110120185
2011-05-26

METHODS FOR PRODUCING STERILE CRYOGENIC FLUIDS

#18
20100071412
2010-03-25

Method and apparatus for producing high purity oxygen

#19
20090320520
2009-12-31

NITROGEN LIQUEFIER RETROFIT FOR AN AIR SEPARATION PLANT

#20
20090120128
2009-05-14

Low Temperature Air Fractionation with External Fluid

#21
20090107177
2009-04-30

PROCESS AND DEVICE FOR LOW TEMPERATURE AIR FRACTIONATION

#22
20080289362
2008-11-27

PROCESS AND APPARATUS FOR LOW-TEMPERATURE AIR FRACTIONATION

#23
20070204652
2007-09-06

PROCESS AND APPARATUS FOR PRODUCING ULTRAPURE OXYGEN