ClassID:

93188

C07C273/14 - CPC Classification

Classification description:

Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds Separation; Purification; Stabilisation; Use of additives

Sub-classes:
Recent Application in this class:
#1
20250084032
2025-03-13

METHOD FOR PRODUCING A SNCR/SCR SOLUTION

#2
20240082797
2024-03-14

UREA WATER MANUFACTURING DEVICE AND THEREOF METHOD

#3
20220281809
2022-09-08

Ammonia removal from urea finishing

#4
20220249975
2022-08-11

High pressure carbamate condenser

#5
20220144764
2022-05-12

Composition and method for treating urea

#6
20220144715
2022-05-12

Urea granules comprising lignosulfonate coating

#7
20220089527
2022-03-24

Ammonia removal from urea finishing

#8
20220072492
2022-03-10

METHOD FOR PRODUCING SOLID UREA BY GRANULATION

#9
20210317078
2021-10-14

Composition and method for treating urea

#10
20210316261
2021-10-14

UREA GRANULATION PROCESS

#11
20210187412
2021-06-24

Heat exchanger

#12
20200385339
2020-12-10

Urea production process and plant with heat integration in low pressure recovery section

#13
20200361858
2020-11-19

Urea production process and plant

#14
20200306663
2020-10-01

High pressure carbamate condenser

#15
20200215507
2020-07-09

METHOD FOR PRODUCING SOLID UREA BY GRANULATION

#16
20200024227
2020-01-23

Integrated process for production of glycerol carbonate (4-hydroxymethyl-2-oxo-1, 3-dioxolane) and urea

#17
20190185422
2019-06-20

Urea production process and plant

#18
20190031604
2019-01-31

Integrated process for the production of formaldehyde-stabilised urea

#19
20180362453
2018-12-20

Process for the production of formaldehyde

#20
20180072659
2018-03-15

Process for the production of formaldehyde

#21
20180072658
2018-03-15

Integrated process for the production of formaldehyde-stabilized urea

#22
20180037542
2018-02-08

Urea production method

#23
20160325227
2016-11-10

Manufacturing Method of Urea Solution Used For Intelligent And High Efficiency Diesel Engine Vehicle

#24
20150210604
2015-07-30

Urea passivation technique and new product passivated urea, to make urea or urea-based compound universally blendable

#25
20150026943
2015-01-29

Urea finishing method

#26
20140326030
2014-11-06

Urease inhibitor formulations

#27
20140284214
2014-09-25

Process for the removal of ammonia from an ammonia-containing gas stream

#28
20090035579
2009-02-05

Solid particles, method and device for the production thereof

#29
20080128291
2008-06-05

Process for the removal of ammonia from an ammonia-containing gas stream

#30
20080041131
2008-02-21

Method of improving the crushing strength and reducing the dust formation and the caking tendency of urea, and urea composition

#31
20060177574
2006-08-10

Process for the preparation of urea granules