| Patents for C05C 9 - Fertilisers containing urea or urea compounds (2,709) |
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| 12/11/1991 | CN1056860A Urea fertilizer with compositely long effect containing trace elements and process for manufacturing same |
| 11/26/1991 | CA2042927A1 Lignosulfonate conditioning agent for urea particles |
| 11/21/1991 | EP0282513B1 Attrition-resistant, controlled release fertilizers |
| 11/20/1991 | CN1056298A Process for making uridylic b-fretilizer |
| 10/30/1991 | EP0454227A1 Process for concentrating urea solutions under vacuum |
| 10/17/1991 | WO1991015439A1 Granular slow release fertilizer composition and process |
| 10/15/1991 | US5057584 Chalcogen-containing compounds |
| 10/15/1991 | US5057141 Compositions for biological control of plant pathogenic nematodes |
| 10/15/1991 | CA1290585C Controlled release fertilizer gel composition and process for its production |
| 10/15/1991 | CA1290584C Sulfur-based encapsulants for fertilizers |
| 10/03/1991 | WO1991014663A1 Encapsulated slow release fertilizers |
| 09/26/1991 | DE4008763A1 Urea-potassium fertiliser complex prepn. - by heating mixt. of urea, potassium chloride, ammonium sulphate and water in two stages, cooling and comminuting |
| 09/25/1991 | EP0375725A4 Compositions for biological control of plant pathogenic nematodes |
| 08/13/1991 | US5039328 Process for producing a granular slow-acting nitrogenous fertilizer |
| 07/30/1991 | US5035737 Urea-sulfuric acid adduct |
| 07/18/1991 | CA2034064A1 Device for a controlled release of fertilizers |
| 07/16/1991 | US5032164 Modified lignosulfonate conditioning agent for urea particles |
| 06/11/1991 | US5022917 Liquid herbicidally active compositions |
| 05/22/1991 | CN1051545A Non-deliquescent rare earth microelement fertiliaer and preparation thereof |
| 03/26/1991 | CA1281911C Method of producing fertilizer granules containing urea and ammonium sulphate, and similar granules |
| 03/06/1991 | CN1011892B Method for producing fertilizer granules containing urea and ammounium sulphate |
| 02/19/1991 | US4994100 Homogeneous granular nitrogen fertilizer |
| 02/19/1991 | US4993442 Methods for removing obstructions from conduits using sulfuric acid adducts |
| 02/06/1991 | EP0411049A1 Composition for introduction into a high temperature environment |
| 02/06/1991 | CN1049010A Si-n-p granular fertilizer and productive process thereof |
| 01/29/1991 | US4988377 Coatings with sulfonated polymers |
| 01/09/1991 | CN1011139B Production method of urea |
| 11/28/1990 | EP0399567A2 Fertilizer-containing compositions |
| 11/27/1990 | CA1276803C Production of high-strength storage-stable particulate urea |
| 10/09/1990 | US4962283 Single pass continuous urea-sulfuric acid process |
| 10/09/1990 | US4961774 Applying aqueous extract of water hyacinth as plant growth regulator; hydroponics |
| 10/04/1990 | WO1990011262A1 Stabilized urea based fertilizers for foliar application |
| 09/27/1990 | DE3909587A1 Nitrogen fertilizer based on calcium cyanamide |
| 09/07/1990 | WO1990009971A1 Single pass continuous blend urea-sulfuric acid process |
| 09/04/1990 | US4954154 Controlled release fertilizer gel composition and process for its production |
| 08/29/1990 | CN1009360B Method for producing urea-(nh4)3 po4 compound fertilizer |
| 08/08/1990 | EP0380836A1 Polymeric coatings |
| 07/31/1990 | US4944787 Thermally stable urea-sulfuric acid compositions and methods of manufacture |
| 07/24/1990 | US4943308 Thickening aqueous solution, fluidized beds |
| 07/17/1990 | US4942254 Chalcogen compounds, adducts with sulfuric acid |
| 07/04/1990 | EP0376853A1 Homogeneous granular nitrogen fertilizer |
| 07/04/1990 | EP0375725A1 Compositions for biological control of plant pathogenic nematodes. |
| 06/19/1990 | US4935048 Cellulosic compositions and methods for treating cellulosic materials |
| 05/30/1990 | EP0370019A1 Preparation of free-flowing solids from aqueous waste |
| 03/27/1990 | US4912278 Friedel-Crafts reactions |
| 03/20/1990 | US4910356 In presence of a reducing agent and mixture of sulfuric acid and chalcogen compound |
| 03/20/1990 | US4910179 ID catalyzed reactions and compositions for use therein |
| 02/21/1990 | CN1039793A Method of producting urea and zinc mixed fertilizer |
| 02/20/1990 | US4901580 Load testing apparatus |
| 01/23/1990 | US4895983 Process for producing methylol urea solution and process for producing slow-releasing nitrogenous fertilizer using the same |
| 01/17/1990 | EP0071128B1 Granulated fertilizer with regulated solvability |
| 01/17/1990 | CN1038770A Liquid fertilizer produced by treating waste water of urea-formaldehyde resin |
| 12/05/1989 | US4885425 Alkylation |
| 12/05/1989 | US4885021 Particulate urea with clay incorporated for hardness and/or gelling |
| 11/22/1989 | CN1037281A Composition for introduction into high temp. environment |
| 11/16/1989 | DE3816570A1 Preparation of fertiliser mixtures urea/ammonium chloride and/or tetraurea anhydrite |
| 11/08/1989 | EP0340666A1 Composition for introduction into a high temperature environment |
| 11/02/1989 | WO1989010182A1 Composition for introduction into a high temperature environment |
| 10/31/1989 | US4877869 Using chalcogen-containing catalyst |
| 10/17/1989 | US4874595 Process for producing calcium-urea nitrate |
| 08/15/1989 | US4857098 Sulfur-coated fertilizer granules and process of making same |
| 08/08/1989 | CA1258189A1 Triazone fertilizer and method of making |
| 04/25/1989 | US4824473 Treatment of plants with a combination fertilizer composition |
| 04/12/1989 | EP0311235A2 Load testing apparatus |
| 04/04/1989 | USH620 Conifer growth stimulation and forest management |
| 03/28/1989 | CA1251652A1 Combination fertilizer composition |
| 02/23/1989 | WO1989001462A1 Compositions for biological control of plant pathogenic nematodes |
| 02/14/1989 | US4804403 Attrition-resistant, controlled release fertilizers |
| 01/31/1989 | US4801498 Substrates coated with neutralized carboxylated polymers |
| 12/14/1988 | CN88102543A Binder for granulated compound fertilizer and its production technology and equipment |
| 12/06/1988 | CA1245971A1 Fluidized bed process for the preparation of granules |
| 12/01/1988 | WO1988009316A1 Preparation of free-flowing solids from aqueous waste |
| 11/09/1988 | EP0290103A2 Triazone fertilizer and method of making |
| 11/09/1988 | EP0290102A2 Water-insoluble triazone fertilizer and method of making and use |
| 11/09/1988 | CN87103006A Solidify inorganic acid used in producing fertilizer and its application |
| 11/02/1988 | EP0289074A1 A process for producing fertilizer granules |
| 11/02/1988 | EP0282513A4 Attrition-resistant, controlled release fertilizers. |
| 11/02/1988 | CN88102293A Process for producing fertilizer granules |
| 11/01/1988 | US4781749 Polymethylene urea fertilizer solution |
| 10/18/1988 | US4778510 Reacting urea, ammonia and aldeydi type compounds; critical caustic; foilar fertilizer |
| 10/12/1988 | CN87102556A Improvement of chlorination technology of permanently effective phosphorous and its waste water treatment |
| 10/11/1988 | US4776879 Water insoluble triazone fertilizer and methods of making and use |
| 09/28/1988 | CN88101281A Process for the hydrolysis of urea in dilute aqueous urea solution |
| 09/21/1988 | EP0282513A1 Attrition-resistant, controlled release fertilizers. |
| 08/29/1988 | EP0267263A4 Coatings with sulfonated polymers. |
| 08/17/1988 | EP0278562A2 Process for producing calcium urea-nitrate |
| 07/20/1988 | EP0274805A1 Acid catalysts and methods of use |
| 05/31/1988 | CA1237292A1 Sustained release compositions for biologically active materials |
| 05/18/1988 | EP0267263A1 Coatings with sulfonated polymers. |
| 05/10/1988 | US4743669 Urea-sulfuric acid catalyst |
| 05/04/1988 | CN85109580B Production of lang life urea fertilizers containing para-dihydroxyl-benzene |
| 05/04/1988 | CN85104656B 用于在土壤中保持氮的组合物配方和土壤的处理方法 Processing methods to keep nitrogen in the soil and soil composition formula for |
| 02/25/1988 | WO1988001132A1 Attrition-resistant, controlled release fertilizers |
| 02/02/1988 | US4722986 Acid catalysts and methods of use |
| 12/16/1987 | CN87103865A Improved coatings with sulfonated polymers |
| 12/15/1987 | CA1230237A1 Solid composition of complex organo-mineral fertilizer and process for preparing it |
| 12/08/1987 | US4711659 Amine-containing, water soluble particles surrounded by and bonded to urea coating |
| 11/05/1987 | WO1987006575A1 Coatings with sulfonated polymers |
| 11/03/1987 | US4704160 Plant growth regulator which retards gibberellin synthesis |
| 10/20/1987 | US4701353 Process for the preparation of granules |