| 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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| 09/04/2002 | CN1090053C Process for producing granules |
| 09/04/2002 | CN1090052C Surface tension reduction with N-N-dialkyl ureas |
| 09/03/2002 | US6444180 Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature |
| 08/28/2002 | CN1089630C Safety process for pressure equipment in contact with corrosive fluids |
| 08/27/2002 | CA2167039C Alkylated (hetero)cyclic compounds; process for preparing the same and pharmaceutical compositions containing them |
| 08/21/2002 | EP1232150A1 Urea derivatives as anti-inflammatory agents |
| 08/14/2002 | CN1364156A Novel naphthalene ureas as glucose uptake enhancers |
| 08/14/2002 | CN1364155A N-Cyanomethyl amides as protease inhibitors |
| 08/08/2002 | WO2002020471A3 Method of improving the crushing strength and the impact resistance of urea, and urea composition |
| 08/08/2002 | WO2002006189A3 Aniline derivatives |
| 08/07/2002 | EP1107949A4 Process for preparing certain phenyl urea compounds |
| 08/07/2002 | EP0781272B1 Synthesis of penta-substituted guanidines |
| 08/07/2002 | CN1362947A N-cyanomethylamides as protease inhibitors |
| 08/07/2002 | CN1362404A Process of treating urea condensate |
| 08/01/2002 | WO2002059102A2 Urea derivatives, method for preparing same, use thereof as medicines, pharmaceutical compositions and use |
| 08/01/2002 | US20020100127 Novel coupler for use in oxidative hair dyeing |
| 08/01/2002 | CA2435647A1 Urea derivatives, method for preparing same, use thereof as medicines, pharmaceutical compositions and use |
| 07/30/2002 | US6426434 Reacting ammonia and carbon dioxide to form urea, followed by separation of unreacted ammonia and carbon dioxide by stripping with carbon dioxide at a pressure equal to the urea synthesis pressure and by high and low pressure decomposition |
| 07/16/2002 | US6420466 Process for preparing a thixotropic agent and its use |
| 07/10/2002 | EP0977731B1 Process for preparing urea |
| 07/09/2002 | US6417396 Quenching reagents for solution phase synthesis |
| 07/09/2002 | US6417393 Treatment of sickle-cell anemia, brain edema from tumors or ischemia, diarrhea, and glaucoma; hypotensive, wound healing, antiinflammatory and antiallergen agents |
| 07/09/2002 | CA2094137C Novel hydroxamic acid and n-hydroxyurea derivatives and their use |
| 07/09/2002 | CA2059362C System and device for increasing the yield and the production potential of urea reactors |
| 07/04/2002 | US20020086996 N-cyanomethyl amides which are cysteine protease inhibitors; treating osteoporosis; mixtures with bisphosphonates |
| 07/04/2002 | US20020085965 From pure ammonia and carbon dioxide; high conversion yield with reduced energy consumption and low implementation costs. |
| 07/03/2002 | CN1356314A Process for recovering condensed liquid in urea preparing process |
| 07/03/2002 | CN1356313A Desorption process by deep hydrolysis for condensed liquid in urea processing process |
| 07/02/2002 | US6414184 Process for producing polyisocyanates containing biuret groups from (cyclo)aliphatic diisocyanates |
| 07/02/2002 | US6412684 High pressure chemical reactors; stainless steel plates |
| 06/27/2002 | US20020082451 Process for the synthesis of urea |
| 06/20/2002 | WO2002048099A1 Carboxylic acid amide derivatives and their use in the treatment of thromboembolic diseases and tumours |
| 06/20/2002 | DE10063008A1 Carbonsäureamidderivate Carboxamide |
| 06/20/2002 | CA2431766A1 Carboxymide derivatives and their use in the treatment of thromboembolic diseases and tumours |
| 06/19/2002 | CN1354170A New process for synthesizing diethylbarbituric acid by using sodium methoxide as catalyst |
| 06/13/2002 | WO2002046145A1 Process for the preparation of urea |
| 06/11/2002 | CA2156439C Urea-surfactant clathrates and their use in bioremediation of hydrocarbon contaminated soils and water |
| 06/04/2002 | US6399809 From malonic acid monoester amide |
| 06/04/2002 | CA2040525C Process for concentrating urea solutions under vacuum |
| 05/28/2002 | US6395930 Quenching reagents for solution phase synthesis |
| 05/23/2002 | WO2002040443A1 Process for the preparation of urea |
| 05/23/2002 | WO2002039967A1 Novel coupler for use in oxidative hair dyeing |
| 05/23/2002 | DE10055818A1 Catalytic production of ammonia, especially for direct conversion into urea, using nitrogen-hydrogen starting gas mixture obtained from natural gas by autothermal reforming and catalytic conversion |
| 05/23/2002 | CA2428852A1 Process for the preparation of urea |
| 05/23/2002 | CA2424723A1 Novel coupler for use in oxidative hair dyeing |
| 05/21/2002 | US6392096 From carbon dioxide and ammonia |
| 05/21/2002 | US6392001 Process for the production of light-stable polyisocyanates containing allophanate groups |
| 05/21/2002 | CA2230750C Antiherpes peptidomimetic compounds |
| 05/16/2002 | WO2002038499A1 Method for producing ammonia on the basis of a nitrogen-hydrogen mixture from natural gas |
| 05/16/2002 | US20020058834 Preparation of N-acyl amino carboxylic acids, amino carboxylic acids and their derivatives by metal-catalyzed carboxymethylation in the presence of a promoter |
| 05/16/2002 | US20020058784 Generation of preferential compound; obtain sample of diamino acid such as 2,3 diaminopropionic acid, incubate with compound with free amino group, recover urein |
| 05/15/2002 | EP1204717A1 Integrated process for converting hydrocarbon gas to liquids |
| 05/15/2002 | EP1204408A2 An improved form of form i celiprolol hydrochloride |
| 05/15/2002 | CN2491450Y Urea stripping liquid hydrolytic stripping tower |
| 05/14/2002 | US6387949 Substituted urea compounds useful in pain management |
| 05/14/2002 | CA2023415C Process for purifying the effluent from urea production plants |
| 05/09/2002 | US20020054840 Gaseous carbon dioxide (CO2) is fed in the bottom of the reactor while liquid ammonia and recycled ammonium carbamate aqueous solution is fed from the top, meeting in countercurrent flow the rising CO2 |
| 05/08/2002 | EP1203765A2 Process for the synthesis of urea |
| 05/08/2002 | CN1347747A Two-sectional variable pressure adsorption and decarbonizing process of recovering hydrogen and nitrogen gas for urea production |
| 05/07/2002 | US6384220 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 |
| 05/02/2002 | WO2002034382A1 Carbamate condensation unit |
| 05/02/2002 | WO2001081298A3 Cyclic carboxylic acids as integrin antagonists |
| 05/02/2002 | US20020052417 Factor VIIa inhibitory (thio)urea derivatives, their preparation and their use |
| 05/02/2002 | EP1201298A1 Carbamate condensation unit |
| 05/01/2002 | CN1346798A Improved apparatus for decomposition of aminoformate and stripping ammonia and carbon dioxide from urea solution |
| 04/18/2002 | WO2002030875A1 Beta-amino acid derivatives as integrin receptor antagonists |
| 04/18/2002 | CA2424951A1 Beta-amino acid derivatives as integrin receptor antagonists |
| 04/17/2002 | EP1196377A1 Method for the preparation of urea |
| 04/17/2002 | CN1344711A Combined prep. of ammonia and urea |
| 04/17/2002 | CN1344710A Method of recovering dehydrogenation heat energy in urea production |
| 04/16/2002 | US6372933 Reacting benzoxazolinone with nucleophilic aniline derivative in presence of lewis acid to open oxazolinone ring to form phenyl urea compound |
| 04/11/2002 | US20020042512 Alpha-acyl- and alpha-heteroatom-substituted benzene acetamide glucokinase activators |
| 04/11/2002 | US20020041838 Stripping cylindrical shell on support; corrosion resistance, stability |
| 04/10/2002 | EP1195194A1 Improved apparatus for carbamate decomposition and ammonia and carbon dioxide stripping from urea solutions |
| 04/10/2002 | CN1344259A Processes and intermediates for prepn. of 1,3-diazin-b 6-ones and uracils |
| 04/04/2002 | WO2001094301A3 Factor viia inhibitory (thio)urea derivatives, their preparation and their use |
| 04/04/2002 | DE10044792A1 Substituierte Phenylcyclohexancarbonsäureamide und ihre Verwendung Substituted Phenylcyclohexancarbonsäureamide and their use |
| 03/28/2002 | WO2002024635A2 Aminoalcohol derivatives |
| 03/28/2002 | US20020038025 For therapy and prophylaxis of hypercholesterolemia, hyperlipemia, arteriosclerosis, vascular diseases, mycoses, parasite infections, gallstones, tumors and/or hyperproliferative disorders, diabetes |
| 03/28/2002 | US20020037854 Use of at least one no synthase inhibitor for treating sensitive skin |
| 03/21/2002 | US20020035293 Process for the integrated preparation of ammonia and urea |
| 03/21/2002 | US20020035292 From carbon dioxide and ammonia |
| 03/20/2002 | EP1188779A1 Process for preparing a storage-stable rheologically active urea-urethane solution with broad compatibility |
| 03/20/2002 | EP1188710A2 Process for the integrated preparation of ammonia and urea |
| 03/14/2002 | WO2002020471A2 Method of improving the crushing strength and the impact resistance of urea, and urea composition |
| 03/14/2002 | US20020032210 Chloride channel blockers; useful in the treatment of sickle cell anaemia, brain edema following iscaemia or tumors, diarrhea, hypertension, bone metabolic disorders, osteoclast associated disoders; substituted biphenyl containing nitrogen |
| 03/07/2002 | DE10039837A1 Preparing urea-urethane solution, useful as thixotropic agent for coating compositions, by reacting diamine with two different monoisocyanate adducts |
| 03/06/2002 | CN1338453A Preparation of wide compatible, stable and rheologic activating urethane solution |
| 02/28/2002 | WO2001010979A9 Integrated process for converting hydrocarbon gas to liquids |
| 02/27/2002 | EP1181271A2 Naphthalene ureas as glucose uptake enhancers |
| 02/27/2002 | CN1337942A Process for the preparation of urea |
| 02/27/2002 | CN1079790C Process and plant for production of urea with high conversion yield and low energy consumption |
| 02/27/2002 | CN1079696C Method for in-situ moderization of urea synthesis reactor and urea synthesis reactor |
| 02/21/2002 | US20020022727 Method for producing ar(alk)yluraciles, novel corresponding intermediate products and method for producing said intermediate products |
| 02/20/2002 | CN1079394C Process for the urea synthesis from ammonia and carbon deoxide and equipment therefor |
| 02/14/2002 | US20020019374 Salicylohydrazide derivatives, processes and intermediates for their preparation, compositions comprising them, and their use |
| 02/13/2002 | EP1178958A2 N-cyanomethyl amides as protease inhibitors |
| 02/13/2002 | CN1335302A Biuret polyisocyanic acid ester and its producing process |
| 02/07/2002 | WO2001010979B1 Integrated process for converting hydrocarbon gas to liquids |
| 02/06/2002 | EP0882024B1 Retroviral protease inhibiting compounds |