ClassID:

93186

C07C273/10 - 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 combined with the synthesis of ammonia

Recent Application in this class:
#1
20250376439
2025-12-11

SYSTEMS AND METHODS FOR MEMBRANE ENHANCED STEAM REFORMING WITH CARBON DIOXIDE UTILIZATION

#2
20250236587
2025-07-24

INTEGRATED PRODUCTION OF UREA FOR DIESEL EXHAUST FLUID AND UREA AMMONIUM NITRATE

#3
20250179010
2025-06-05

UREA PRODUCTION METHOD AND UREA PRODUCTION APPARATUS

#4
20250145482
2025-05-08

AMMONIA SYNTHESIS AND UREA SYNTHESIS WITH REDUCED CO2 FOOTPRINT

#5
20250115547
2025-04-10

INTEGRATED PRODUCTION OF UREA FOR DIESEL EXHAUST FLUID AND UREA AMMONIUM NITRATE

#6
20240359996
2024-10-31

Low Carbon Emission Optimization for a Combined Ammonia, UAN, and Urea Production Process

#7
20230016743
2023-01-19

Processes and Systems for Converting a Hydrocarbon-Containing Feed

#8
20220234999
2022-07-28

METHOD FOR CATALYTICALLY PRODUCING UREA

#9
20220144654
2022-05-12

Process For Producing Methanol And Ammonia

#10
20220135413
2022-05-05

Synthesis of Ammonia Using Cycle-Generated Hydrogen Sulfide

#11
20220048854
2022-02-17

PROCESS FOR THE PRODUCTION OF UREA FORMALDEHYDE CONCENTRATE

#12
20220048853
2022-02-17

Process for the production of urea formaldehyde concentrate

#13
20210395146
2021-12-23

Biocementation Methods and Systems

#14
20210380427
2021-12-09

Co-production of methanol, ammonia and urea

#15
20210363100
2021-11-25

Urea production process and production plant using CO2 producted by oxy-combustion

#16
20210331086
2021-10-28

Integrated production of urea for Diesel Exhaust Fluid and urea ammonium nitrate

#17
20210268460
2021-09-02

Use of supercritical COas solvent for organic polymers in a method for coating urea-containing granules

#18
20210017023
2021-01-21

Process for producing methanol and ammonia

#19
20200231456
2020-07-23

Urea process with controlled excess of COand/or NH

#20
20200087153
2020-03-19

Co-production of methanol, ammonia and urea

#21
20200002273
2020-01-02

Ammonia-urea integrated process and plant

#22
20190382277
2019-12-19

Ammonia process using advanced shift process

#23
20190359558
2019-11-28

Process for integrated production of urea and urea-ammonium nitrate

#24
20190322539
2019-10-24

Method for producing ammonia and urea in a common facility

#25
20190277497
2019-09-12

POLYGENERATION PRODUCTION OF POWER AND FERTILIZER THROUGH EMISSIONS CAPTURE

#26
20190144768
2019-05-16

Gasification with enriched oxygen for production of synthesis gas

#27
20190106716
2019-04-11

Cyclical reaction of calcium carbonate

#28
20190031604
2019-01-31

Integrated process for the production of formaldehyde-stabilised urea

#29
20190016603
2019-01-17

Oxycombustion systems and methods with thermally integrated ammonia synthesis

#30
20180362453
2018-12-20

Process for the production of formaldehyde

#31
20180282265
2018-10-04

Method for the provision of carbon dioxide for the synthesis of urea

#32
20180258035
2018-09-13

Method for purification of a CO2 stream

#33
20180072659
2018-03-15

Process for the production of formaldehyde

#34
20180072658
2018-03-15

Integrated process for the production of formaldehyde-stabilized urea

#35
20180071653
2018-03-15

Integrated production of urea for diesel exhaust fluid and urea ammonium nitrate

#36
20180065923
2018-03-08

Modularized System and Method for Urea Production Using A Bio-Mass Feedstock

#37
20170283371
2017-10-05

Process for production of ammonia and derivatives, in particular urea

#38
20170267539
2017-09-21

Integrated process for carbon capture and energy production

#39
20170267538
2017-09-21

INTEGRATED PROCESS FOR CAPTURING CARBON DIOXIDE

#40
20170152219
2017-06-01

METHOD FOR THE MANUFACTURE OF UREA

#41
20170096333
2017-04-06

Reforming device and method for manufacturing chemical products

#42
20170009983
2017-01-12

Polygeneration production of power and fertilizer through emissions capture

#43
20160326100
2016-11-10

Modularized system and method for urea production using a bio-mass feedstock

#44
20160318855
2016-11-03

Method for preparation of ammonia gas and COfor a urea synthesis process

#45
20160251229
2016-09-01

Ammonia synthesis for fertilizer production

#46
20160167974
2016-06-16

Integrated process for carbon capture and energy production

#47
20160083260
2016-03-24

Process for co-production of ammonia, urea and methanol

#48
20150368191
2015-12-24

Method of forming urea by integration of an ammonia production process in a urea production process and a system therefor

#49
20150291438
2015-10-15

Polygeneration production of power and fertilizer through emissions capture

#50
20150202589
2015-07-23

Reforming device and reforming method, and device for manufacturing chemical products equipped with reforming device and method for manufacturing chemical products

#51
20150191351
2015-07-09

Method and installation for the combined production of ammonia synthesis gas and carbon dioxide

#52
20150183650
2015-07-02

Oxycombustion systems and methods with thermally integrated ammonia synthesis

#53
20150175533
2015-06-25

USE OF UREA SYNTHESIS PURGE GAS IN AN INTEGRATED AMMONIA-UREA PROCESS AND RELATED PLANT

#54
20150031916
2015-01-29

Method of manufacturing urea from refuse, preferably domestic waste, of any composition

#55
20140364647
2014-12-11

Process for producing ammonia and urea

#56
20140357736
2014-12-04

Co-production of methanol and urea

#57
20140018575
2014-01-16

Process and plant for ammonia-urea production

#58
20130281553
2013-10-24

METHOD OF PRODUCING SYNTHETIC FUELS AND ORGANIC CHEMICALS FROM ATMOSPHERIC CARBON DIOXIDE

#59
20130116472
2013-05-09

PROCESS FOR PREPARING UREA

#60
20110250119
2011-10-13

Integrated process for the manufacture of olefins and intermediates for the productions of ammonia and urea

#61
20100205856
2010-08-19

METHOD OF PRODUCING SYNTHETIC FUELS AND ORGANIC CHEMICALS FROM ATMOSPHERIC CARBON DIOXIDE

#62
20080207948
2008-08-28

Method for the production of urea from natural gas

#63
20070287863
2007-12-13

Process for urea production from ammonia and carbon dioxide

#64
17968406
2025-05-20

Modular artificial intelligence-driven plasma gasification process for resource recovery

#65
16361448
2020-04-14

Catalytic gasification to produce ammonia and urea