| Patents for C07C 273 - 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 (3,705) |
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| 02/06/2002 | CN1334801A Biphenyl and biphenyl-analogous compounds as integrin antagonists |
| 02/06/2002 | CN1334265A Process for recovering urea microparticles |
| 02/06/2002 | CN1334136A Two-stage pressure swing adsorption process for decarbonizing urea |
| 02/05/2002 | US6344588 Process for the preparation of urea |
| 01/31/2002 | WO2002008209A1 Alpha-acyl and alpha-heteroatom-substituted benzene acetamide glucokinase activators |
| 01/29/2002 | US6342632 Process and plant for the production of urea with high conversion yield and low energy consumption |
| 01/29/2002 | CA2146070C Improved reactor for the synthesis of urea |
| 01/24/2002 | WO2002006189A2 Aniline derivatives |
| 01/23/2002 | EP1173415A1 Diphenylurea derivatives |
| 01/23/2002 | CN1078205C Method for increasing capacity of existing urea process |
| 01/22/2002 | US6340451 Method for the simultaneous modernization of a plant for ammonia production and a plant for urea production |
| 01/17/2002 | US20020006957 Method for the synthesis of compounds of formula I and their uses thereof |
| 01/16/2002 | CN1077884C Process for prepn. of urea |
| 01/10/2002 | WO2001042192A3 Vla-4 integrin antagonists |
| 01/10/2002 | US20020004612 Reacting ammonia and carbon dioxide |
| 01/10/2002 | US20020004608 N-(4-carbamimidoyl-phenyl)-glycine derivatives |
| 01/10/2002 | US20020004503 Viricides |
| 01/09/2002 | EP1170289A2 Retroviral protease inhibiting compounds |
| 01/09/2002 | EP1170284A2 Urea synthesis process and apparatus |
| 01/09/2002 | EP1169308A1 Processes and intermediates for the preparation of 1,3-oxazin-6-ones and uracils |
| 01/03/2002 | US20020002281 Method of preparing amino carboxylic acids |
| 01/03/2002 | US20020002190 Antidiabetic agents increasing the expression of glucokinase (GK) to improve glucose tolerance; increase in glucose exposure coupled through GK in beta-cells to increase insulin secretion and in hepatocytes to increase glycogen deposition |
| 01/02/2002 | EP1107948A4 An improved synthesis of 3-hydroxy-4-amino-benzonitrile |
| 01/02/2002 | CN1329591A Method of introducing melamine off-gases into urea plant |
| 01/02/2002 | CN1077101C 2-chloro-3,5-bis (trifluoromethyl)phenyl benzoyl urea derivative and process for preparing same |
| 01/01/2002 | US6334984 Divider horizontal baffle over cross section of shell |
| 12/27/2001 | US20010056169 Continuous processing comprising the steps of reacting excess (cyclo)aliphatic diisocyanates with (cyclo)aliphatic diamines at >170 degrees C. and adding an acid catalyst before/ during the reaction; stability; dilutability; colorless |
| 12/26/2001 | CN1327977A Process for preparing carbamide derivative by catalytic oxidation and oxonation of amine |
| 12/20/2001 | WO2001096288A1 Process for decomposing a carbamate aqueous solution coming from the urea recovery section of a urea production plant |
| 12/20/2001 | WO2001096287A1 Process and plant for the production of urea |
| 12/19/2001 | EP1164126A1 Salicylic acid hydrazide derivatives, process and intermediates for their preparation, agents containing them and their use for combatting damaging fungi |
| 12/19/2001 | EP0748801B1 2-isoxazoline derivative and process for producing the same, and process for producing related derivatives from the same |
| 12/13/2001 | WO2001094301A2 Factor viia inhibitory (thio)urea derivatives, their preparation and their use |
| 12/13/2001 | WO2001094300A1 Acylphenyl urea derivatives, methods for the production thereof and use thereof as a medicament |
| 12/12/2001 | EP1162194A1 Factor VIIa inhibitory (thio)urea derivatives, their preparation and their use |
| 12/12/2001 | EP1161415A2 N-cyanomethylamides as protease inhibitors |
| 12/11/2001 | CA2205033C Aryloxycycloalkenyl and aryloxyiminocycloalkenylhydroxyureas as 5-lipoxygenase inhibitors |
| 12/06/2001 | WO2001092210A1 Compounds for modulating the rage receptor |
| 12/06/2001 | WO2001092208A1 Metal-catalysed carboxymethylation in the presence of a promoter |
| 12/06/2001 | US20010047963 Methods of isolating urea, urea compositions and methods for producing the same |
| 12/06/2001 | CA2599562A1 Compounds for modulating the rage receptor |
| 12/05/2001 | EP1159260A1 Novel compounds and compositions as protease inhibitors |
| 12/05/2001 | CN1324879A Method for preparing polyiso cyanate with biuret structure |
| 12/05/2001 | CN1075807C Iminooxymethylene anilides, process and intermediate products for preparing the same and pesticides containing the same |
| 12/05/2001 | CN1075793C Process for purifying effluent from urea production plants |
| 11/29/2001 | WO2001090051A1 Phenylglycine derivatives |
| 11/29/2001 | DE10025301A1 Verfahren zur Herstellung von Polyisocyanaten mit Biuretstruktur Process for the preparation of polyisocyanates with a biuret structure |
| 11/28/2001 | EP1158013A1 Process for the preparation of polyisocyanates with biuret structure |
| 11/15/2001 | WO2001085706A1 Substituted phenylacetamides and their use as glucokinase activators |
| 11/15/2001 | US20010041813 From ammonia and carbon dioxide |
| 11/14/2001 | CN1322194A Substituted phenyl derivatives, their preparation and use |
| 11/08/2001 | DE10019755A1 New cyclic carboxylic acids are integrin antagonists, useful for treating inflammatory diseases, autoimmune and immune disorders, e.g. atherosclerosis, asthma and diabetes |
| 11/07/2001 | EP0918809B1 Process for producing polyisocyanates containing biuret groups from (cyclo) aliphatic diisocyanates |
| 11/06/2001 | US6313296 2-pyrrolidinone-1-acetic acid derivatives; viricides for human immunodeficiency virus (hiv); acquired immune deficiency syndrome (aids) treatment |
| 11/01/2001 | WO2001081298A2 Cyclic carboxylic acids as integrin antagonists |
| 10/30/2001 | US6310178 Ureins derived from α, ω-diamino acids and process for their preparation |
| 10/24/2001 | CN1073488C Method and device for restoring high pressure or medium-pressure partial device in industrial equipment |
| 10/23/2001 | US6306959 Rapid purification by polymer supported quench |
| 10/18/2001 | US20010031893 Method for modernizing a urea production plant |
| 10/16/2001 | CA2215596C Process for preparing granular urea |
| 10/10/2001 | EP1141147A1 Process for synthesis of allophanate compounds and compositions including the product thereof |
| 10/10/2001 | EP1140822A1 Stable activated novel carbamic acid derivatives, preparation method and use for preparing urea |
| 10/10/2001 | EP1140809A1 New biphenyl and biphenyl-analogous compounds as integrin antagonists |
| 10/10/2001 | EP1140745A1 Colchinol derivatives as vascular damaging agents |
| 10/04/2001 | WO2001072700A1 Installation and process for the preparation of urea |
| 09/26/2001 | EP1135366A1 Method of introducing melamine off-gases into a urea plant |
| 09/26/2001 | EP0844236B1 Process for producing carbamoylmethylurea derivatives |
| 09/26/2001 | CN1071742C Improved process for synthesis of urea and equipoment thereof |
| 09/20/2001 | WO2000071506A9 Naphthalene ureas as glucose uptake enhancers |
| 09/19/2001 | CN1313848A Process for the preparation of urea |
| 09/18/2001 | US6291520 Hydroxamic acid and N-hydroxyurea derivatives and their use |
| 09/11/2001 | US6287525 Ammonia and carbon dioxide are reacted in a main reaction space from which outgoes a reaction mixture subjected to stripping to obtain a partially purified mixture sent to a urea recovery section. from this section, a dilute carbamate |
| 09/04/2001 | US6284922 Producing urea from ammonia and carbon dioxide in plants with feeders, stripping and reaction with carbon dioxide |
| 09/04/2001 | US6284767 Retroviral protease inhibiting compounds |
| 08/23/2001 | WO2001008633A3 An improved form of form I celiprolol hydrochloride |
| 08/22/2001 | CN2443963Y Washing column for urea evaporating |
| 08/21/2001 | US6278021 Reduced particle-size urea |
| 08/21/2001 | US6277311 Forming solid crystals of urea having low biuret content into discrete masses of urea by mechanical compacting |
| 08/16/2001 | WO2000055124A3 Novel compounds and compositions as protease inhibitors |
| 08/16/2001 | EP1123274A1 Substituted phenyl derivatives, their preparation and use |
| 08/14/2001 | US6274767 Process for the revamping of urea synthesis plants consisting of a stripper with ammonia |
| 08/09/2001 | WO2000071506A3 Naphthalene ureas as glucose uptake enhancers |
| 08/08/2001 | CN2441803Y Energy saving device for evaporation and vacuum extraction in urea production |
| 08/01/2001 | CN1306524A Fluorophenyl resin compounds |
| 07/31/2001 | US6267289 Safety process for pressure equipment in contact with corrosive fluids |
| 07/26/2001 | WO2001053279A1 Urea compounds as inhibitors for vla-4 |
| 07/24/2001 | US6265605 Additive in processed meat, beverages, and in other processed food stuffs; as intermediates in drugs, agricultural chemicals and pesticides, herbicides |
| 07/10/2001 | CA2217425C Improved urea synthesis process and apparatus therefor |
| 07/05/2001 | US20010007012 Reacting a compound having urethane functionality with a compound having isocyanate functionality in the presence of a metal catalyst and a tertiary amine |
| 07/03/2001 | US6254840 Gas-liquid contacting apparatus |
| 07/03/2001 | CA2208022C Process and plant for the production of urea with high conversion yield and low energy consumption |
| 07/03/2001 | CA2063344C System for the passivation of metal surfaces affected by operating conditions and agents promoting corrosion |
| 06/27/2001 | CN1067678C Alkyl heterocyclic compound and preparation method thereof, and medicinal composition containing that kind of compound |
| 06/26/2001 | US6252103 Preparation on an O-alkylisourea |
| 06/20/2001 | EP1107949A2 Process for preparing certain phenyl urea compounds |
| 06/20/2001 | EP1107948A1 An improved synthesis of 3-hydroxy-4-amino-benzonitrile |
| 06/19/2001 | US6248794 Integrated process for converting hydrocarbon gas to liquids |
| 06/14/2001 | WO2001042192A2 Vla-4 integrin antagonists |
| 06/14/2001 | CA2388686A1 Vla-4 integrin antagonists |
| 05/31/2001 | US20010002245 Includes subjecting part of the flow comprising carbamate in aqueous solution coming from urea recovery section to partial decomposition treatment, to obtain a flow of ammonia and carbon dioxide in vapor phase, and diluted carbamate solution |