Patents
Sitemap › C05 - Fertilisers; Manufacture thereof › C05F - Organic fertilisers not covered by subclasses , , e.g. fertilisers from waste or refuse › C05F 15 - Mixtures of fertilisers covered by more than one of main groups; Fertilisers from mixtures of starting materials, all the starting materials being covered by this subclass but not by the same main group
Patents for C05F 15 - Mixtures of fertilisers covered by more than one of main groups; Fertilisers from mixtures of starting materials, all the starting materials being covered by this subclass but not by the same main group (1,520)
06/1985
06/12/1985EP0143913A2 Plant growth enhancing material, method for its preparation and the use of such a material
02/1985
02/26/1985US4501604 Fermentation and decomposition of pulverized wood, livestock feces and animal carcasses
01/1985
01/22/1985US4494975 Composing compositions
06/1984
06/13/1984EP0110208A2 Process for the utilisation of sludge
05/1984
05/08/1984CA1166863A1 Method for the anaerobic digestion of solid organic material
03/1984
03/07/1984EP0101784A1 Process for the preparation of natural humic mould and fertilizers
12/1983
12/13/1983US4420320 Method of biologically drying waste material
08/1983
08/23/1983US4400195 Formation of methane and carbon dioxide
04/1983
04/05/1983CA1144082A1 Process for combined waste utilization and the clarification of waste water and a multi-stage filtration device for the performance of the process
05/1982
05/25/1982CA1124183A1 Coal filtering for purifying waste water under continuous regeneration of coal and recovery of heat
10/1981
10/14/1981EP0037612A1 A method for the anaerobic conversion of solid organic material
06/1981
06/09/1981US4272489 Device for composting refuse and sewage slurry
04/1981
04/08/1981EP0026440A1 Method of drying solid refuse biologically
12/1980
12/10/1980EP0019898A1 Process for preparing a storage-stable and biologically active soil improving agent
10/1980
10/07/1980US4226712 Method and apparatus for treating water containing wastes
08/1980
08/26/1980CA1084290A1 Mulch material produced from vegetable fibers
03/1980
03/18/1980US4193786 Process and apparatus for producing compost
08/1979
08/28/1979CA1061129A1 Product for producing the physical media for plant growth
03/1979
03/27/1979US4146381 Crushing, stacking, tunneling
12/1978
12/05/1978US4127965 Method for growing wood mushrooms
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