| 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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| 11/18/2008 | CA2553388C Method for increasing the capacity of an existing urea process |
| 11/13/2008 | DE102007022462A1 Verfahren und Vorrichtung zur Behandlung einer Ammoniumcarbonatlösung Method and apparatus for treating an ammonium carbonate |
| 10/29/2008 | EP1985611A1 Process for production of o-methyl-n-nitroisourea |
| 10/29/2008 | EP1985610A1 Improved method for producing nitroisourea derivative |
| 10/29/2008 | CN201141010Y Urea flash heater |
| 10/29/2008 | CN101293858A Method for synthesizing í«dimiliní» with phosgene as raw material |
| 10/23/2008 | US20080262261 Stable liquid biuret modified and biuret allophanate modified toluene diisocyanates, prepolymers thereof, and processes for their preparation |
| 10/22/2008 | CN100427443C Method for simultaneously producing methanol, urea and artificial gas |
| 10/21/2008 | US7439393 Phenethanolamine derivatives for treatment of respiratory diseases |
| 10/21/2008 | CA2352660C Process for preparing a broad-compatibility, storage-stable, rheologically active urea urethane solution |
| 10/08/2008 | CN101279932A Preparation of N,Ní»-dicyclohexylurea |
| 10/02/2008 | US20080242890 Method for Modernizing a Urea Production Plant |
| 10/01/2008 | EP1975152A1 Method for modernizing a urea production plant |
| 10/01/2008 | EP1975151A1 Method for modernizing a urea production plant |
| 10/01/2008 | CN101275879A Steam leak detection system and leak detection medium parameter |
| 10/01/2008 | CN101274906A Method for modernizing a urea production plant |
| 10/01/2008 | CN101274905A Feeding method for preventing high pressure scrubber from explosion in urea production |
| 09/29/2008 | CA2627827A1 Method for modernizing a urea production plant |
| 09/24/2008 | CN101270065A Urea synthetic tower tray floor |
| 09/18/2008 | WO2008110492A1 Method for the production of colorless polyisocyanates that have biuret groups and are stable in storage |
| 09/12/2008 | WO2008107661A1 New methylenebisphenyl compounds useful in the treatment of inflammation |
| 09/12/2008 | CA2680139A1 New methylenebisphenyl compounds useful in the treatment of inflammation |
| 09/11/2008 | US20080221215 Antiviral inhibition of capsid proteins |
| 09/11/2008 | US20080221214 Process for the preparation of "Urchym" a urease and alpha-chymotrypsin enzyme inhibitory drug |
| 09/11/2008 | US20080219900 Process for Urea Production and Related Plant |
| 09/09/2008 | CA2305948C Process for preparing a thixotropic agent and its use |
| 09/03/2008 | EP1962984A1 Process for the treatment of an aqueous mixture comprising a dipolar aprotic compound |
| 08/28/2008 | US20080207948 Partial oxidation; autothermal reformation |
| 08/27/2008 | CN101250139A Method for synthesizing 3,3'-dimethoxy diphenylurea |
| 08/26/2008 | CA2357849C Improved apparatus for carbamate decomposition and ammonia and carbon dioxide stripping from urea solutions |
| 08/21/2008 | WO2008099431A1 Process for the elimination of ammonia and carbon dioxide losses from the low pressure section of urea plants |
| 08/21/2008 | US20080199404 Contrast Agents |
| 08/20/2008 | CN101245037A Process for producing oxygen methyl isourea acetate |
| 08/19/2008 | US7414130 produced in a urea plant comprising a high pressure urea synthesis section and a urea recovery section for separating from a carbamate aqueous solution, and melamine is produced in plant wherein off-gases resulting as byproducts of synthesis are discharged and recycled to urea synthesis section |
| 08/14/2008 | US20080194859 Compounds useful in formation of polyureas with increased toughness and durability without a significant loss of flexibility of the material, improved stability, including UV stability, and/or utility for microbial or other biofouling in underwater applications |
| 08/13/2008 | EP1497263B1 Acyl-3-carboxyphenylurea derivatives, method for production and use thereof |
| 08/07/2008 | WO2008092647A1 Process and plant for the production of an aqueous solution comprising urea |
| 08/07/2008 | CA2675611A1 Process and plant for the production of an aqueous solution comprising urea |
| 08/06/2008 | EP1953137A1 Process and plant for the production of an aqueous solution comprising urea |
| 08/06/2008 | CN101235008A Method for preparing urea peroxide |
| 08/06/2008 | CN100408558C Stable liquid biuret modified and biuret allophanate modified toluene diisocyanates, prepolymers thereof, and processes for their preparation |
| 07/30/2008 | CN101230022A Series production technology of biurea |
| 07/30/2008 | CN101230021A Process for the preparation of urea ganules |
| 07/23/2008 | EP1831280B1 Method for producing colourless polyisocyanates that contain biuret groups and are stable in storage |
| 07/16/2008 | CN201087179Y Production device for urea high-tension ring |
| 07/16/2008 | CN101219973A Process for producing biurea |
| 07/16/2008 | CN101219972A Method for synthesizing symmetrical aryl urea compounds |
| 07/16/2008 | CN101219971A Method for the modernization of a urea production plant |
| 07/15/2008 | US7399866 2-(Imidazol-1-ylalkyl)-3H-quinazolin-4-one derivatives; mitotic kinesin KSP inhibitors; anticarcinogenic, antiinflammatory, and antiproliferative agents |
| 07/15/2008 | US7399788 N-deacetylthiocolchicine derivatives, their use and pharmaceutical formulations containing them |
| 07/09/2008 | CN100400506C Method for preparing 2-hydroxy-6-ureidocarbonyl naphthalene derivative |
| 06/25/2008 | EP1935878A1 Increased moisturization efficacy using hydroxyalkylurea |
| 06/25/2008 | EP1934172A1 Compounds containing aldimine |
| 06/25/2008 | CN101205204A Synthesis of N-benzyl-N-benzyloxy urea |
| 06/25/2008 | CN101205203A Synthesis of benzyloxy urea |
| 06/25/2008 | CN100396662C Integrated urea manufacturing equipment and method |
| 06/19/2008 | WO2008073773A1 Process and apparatus for preparing a urea grease |
| 06/19/2008 | DE102006059760A1 Preparing pure urea solution, useful as reducing agent for selective catalytic reduction of nitrogen oxides, comprises rinsing urea solution in deaerator, separating urea crystals and re-circulating mother liquor enriched with biuret |
| 06/18/2008 | CN100395239C Method for preparing carbamido alanine protected by Na-Boc |
| 06/12/2008 | WO2008068210A1 Process for the preparation of urea |
| 06/12/2008 | US20080139811 Reacting an amino, hydroxy substituted amide with a heterocyclic substituted carboxylic acid to produce (2S,3S,5S)-2-(2,6-Dimethylphenoxyacetyl) amino-3-hydroxy-5-[2S-1-imidazolidin-2-onyl)-3-methyl-butanoyl] amino-1,6-diphenylhexane; inhibitors of HIV infection |
| 06/03/2008 | US7381840 2-Hydroxy-1,2,3,4-tetrahydronaphthalenes substituted in the 8-position with a biphenylcarbonylamino-, biphenylcarbonylaminoalkyl-, biphenylaminocarbonylamino-, or biphenylaminocarbonylaminoalkyl- group; vanilloid receptor antagonists |
| 06/03/2008 | CA2389360C Urea derivatives as anti-inflammatory agents |
| 05/28/2008 | CN100390142C Process for the preparation of urea granules |
| 05/27/2008 | US7378543 Higher functionalities for faster cure rate in foams |
| 05/21/2008 | EP1923383A1 Method for the modernization of a urea production plant |
| 05/21/2008 | CN201062241Y Carbamide converter plate |
| 05/14/2008 | CN201058267Y Device for cleaning and reclaiming urea dust |
| 05/13/2008 | US7371807 Blocked biuretized isocyanates |
| 05/08/2008 | WO2008052640A1 Integrated process for urea and melamine production |
| 05/08/2008 | WO2008052639A1 Process for urea production and related plant |
| 05/08/2008 | DE102006036007A1 Rückspaltung von Polyurethanen Cleavage of polyurethanes |
| 05/08/2008 | CA2667956A1 Integrated process for urea and melamine production |
| 05/08/2008 | CA2667954A1 Process for urea production and related plant |
| 05/07/2008 | EP1918274A1 Integrated process for urea and melamine production |
| 05/07/2008 | EP1918273A1 Process for urea production and related plant |
| 05/07/2008 | EP1530563B1 Plant for urea production |
| 05/07/2008 | EP1289942B1 Process and plant for the production of urea |
| 05/07/2008 | CN101175717A Method for concentrating an aqueous ammonium carbamate stream |
| 05/07/2008 | CN101172961A Methods and devices for preparing biuret and cyanuric acid |
| 05/07/2008 | CN101172960A Green synthesis of carbidopa midbody |
| 05/02/2008 | WO2008049972A1 Carbamoylation of amines, thiophenols, mercaptanes and phenols employing organic azides |
| 05/02/2008 | CA2667714A1 Carbamoylation of amines, thiophenols, mercaptanes and phenols employing organic azides |
| 04/30/2008 | CN201053003Y Siren type low frequency sound wave dust polymerization wall-sticking resistant device in urea synthesizing tower |
| 04/30/2008 | CN101168518A Method for preparing N-carbamyl glutamic acid |
| 04/23/2008 | CN101166716A Process for urea production and related plant |
| 04/23/2008 | CN101166715A Apparatus for urea synthesis and method of improving the same |
| 04/23/2008 | CN101166714A Apparatus for urea synthesis |
| 04/22/2008 | US7361787 Prophylaxis of respiratory disorders and therapy, also metod of synthesis and composition with PDE4 inhibitor, corticosteroid hibitor or anticholinergic agent |
| 04/10/2008 | US20080085229 Carbamate Condensation Method and Unit for Carrying Out Such a Method |
| 04/09/2008 | CN101157012A Urea granulation temperature reduction dust collection method and apparatus |
| 03/26/2008 | CN101148426A Antiseptic method for urea first heater |
| 03/26/2008 | CN101148425A Synthesizing method for urea |
| 03/26/2008 | CN100376551C Semicarbazone synthesis method |
| 03/25/2008 | CA2428263C Method for producing ammonia on the basis of a nitrogen-hydrogen mixture from natural gas |
| 03/20/2008 | WO2008031755A1 Process for preparing isocyanates |
| 03/12/2008 | CN201033768Y Carbamide converter plate |
| 03/12/2008 | CN100374414C Naphthurea composition for preparation of carrier generation materials and process for preparing same |
| 03/05/2008 | EP1893668A1 N-(2-hydroxyalkanoyl) -n,n'-dialkylureas and a process for their preparation |
| 03/05/2008 | EP1893563A1 Production of n-aryl carbamates and n-aryl isocyanates |