| Patents for C05F 3 - Fertilisers from human or animal excrements, e.g. manure (3,247) |
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| 01/21/1992 | US5082486 Process for preparing organic compost from municipal refuse |
| 01/09/1992 | WO1992000259A1 Method and apparatus for making organic fertilizer |
| 01/09/1992 | WO1992000258A1 Treatment of waste animal materials |
| 01/08/1992 | EP0464193A1 Treatment of piggery effluent |
| 01/08/1992 | EP0328574B1 Process for the conversion and working up of a mixture of organic matter, anorganic matter and water to a nearly dry product, as well as an installation for the execution of the process and application thereof by the conversion of manure slurry |
| 12/27/1991 | EP0462516A1 Method and composition for the treatment of animal dejections |
| 12/10/1991 | US5071559 Treatment of manure condensate |
| 12/10/1991 | US5071462 Method and apparatus for producing organic fertilizer with the use of nitrogen fixing bacillus |
| 12/04/1991 | EP0459184A2 Obtaining ammonia water |
| 11/28/1991 | DE4016835A1 Treating liq. manure - by addn. of ethylene oxide and/or water sol. aldehyde |
| 11/14/1991 | WO1991017130A1 Fertilizer composition and method |
| 10/31/1991 | WO1991016279A1 Method and apparatus for composting mixture of livestock excretion and barn mat |
| 10/31/1991 | WO1991013835A3 Methods for processing manure and a device therefor |
| 10/30/1991 | CN1055729A Manure industrialized production method using urban excrement and urine |
| 10/27/1991 | WO1991016280A1 Method of manufacturing sterilized organic fertilizer and apparatus therefor |
| 10/27/1991 | CA2081446A1 Method of manufacturing sterilized organic fertilizer and apparatus therefor |
| 10/24/1991 | DE4012671A1 Naehrstoffkonzentrat fuer die aufwertung von pilzkultursubstraten und verfahren zu dessen herstellung Naehrstoffkonzentrat for the appreciation of mushroom culture substrates and process for its manufacture |
| 10/21/1991 | WO1991016281A1 Concentrated nutrient for fungus cultivation and process for making it |
| 10/21/1991 | CA2080919A1 Nutrient concentrate for fungus cultivation, and method of producing same |
| 10/08/1991 | CA1290163C Procedure for composting various organic wastes and composter for implementing the procedure |
| 10/02/1991 | EP0449184A1 Method for treatment of liquid manure |
| 09/19/1991 | WO1991013835A2 Methods for processing manure and a device therefor |
| 09/04/1991 | EP0445102A1 Minimal odour generating process for aerobic treatment of animal excrements |
| 09/04/1991 | EP0444392A2 Process for manufacturing fertilizers or soil amendments from mineral and organic components |
| 08/29/1991 | DE4015361A1 Increasing soil fertility in areas with excess nitrogen levels - using yellow film, present in fowl faeces, which is breakdown prod. of chlorophyll |
| 08/29/1991 | DE4006239A1 Disposal of manure, sewage sludge and refuse by compositing - in aerated reactor with constant stirring after pre-conditioning raw material to 60-65 wt. per cent water content |
| 08/27/1991 | CA1288179C Process and an apparatus for drying and conditioning chicken droppings and similar pasty substances |
| 08/21/1991 | CN1053916A Method for production of organic compound fertilizer by human urine and excrement |
| 08/14/1991 | DE4004434A1 Spreadable, fertilising soil improving agent - contains liq. manure, lignite ash and opt. quick lime or calcium carbonate and/or stone meal |
| 08/08/1991 | WO1991011393A1 Treatment of piggery effluent |
| 08/07/1991 | EP0440339A1 High integrity natural nitrogenous granules for agriculture |
| 07/18/1991 | DE4001024A1 Sepg. solids from viscous gelatinous suspensions - by sepg. animal slurries by pairs of rubber-coated rollers, gripping solid part of slurry and pressing between rollers |
| 07/11/1991 | DE4000329A1 Solidification of farmyard slurry - with addn. of acids produced from sewage sludge to react with nitrogen cpds. |
| 07/03/1991 | EP0435846A2 Process for producing a high-grade fertilizer from rumen contents |
| 06/30/1991 | WO1991009819A1 Composting toilet |
| 06/30/1991 | WO1991009562A1 Toilet seat |
| 06/30/1991 | CA2072574A1 Composting toilet |
| 06/30/1991 | CA2072558A1 Toilet seat |
| 06/26/1991 | EP0434523A1 Deodorization of manures with the help of undecylenic acid ester |
| 06/04/1991 | US5021077 High integrity natural nitrogenous granules for agriculture |
| 05/22/1991 | EP0428015A2 Method and apparatus for producing organic based fertilizer in continuous process |
| 05/22/1991 | EP0428014A2 Method and apparatus for producing organic based fertilizer in a batch process |
| 05/08/1991 | EP0426219A1 Process for the conversion of manure into manure components |
| 05/08/1991 | DE3937039A1 Multiple treatment of liq. manure and thin sludge - by forming fine-dry material, useful as non-noxious fertilisers |
| 05/07/1991 | CA2025734A1 Method and apparatus for producing organic based fertilizer in a batch process |
| 05/07/1991 | CA2025031A1 Method and apparatus for producing organic based fertilizer in continuous process |
| 05/02/1991 | WO1991003440A3 Process for homogenizing or separating liquid manure |
| 05/02/1991 | EP0424596A1 A method for processing manure and a substance used therewith |
| 04/25/1991 | DE4018234A1 Composting WC for caravan - operates with warm air ducted through container from solar heater |
| 04/25/1991 | DE3935249A1 Removing water from animal slurry - by mixing slurry with composting material in fermentation container and evaporating water by heat produced by microorganisms in compost |
| 04/24/1991 | CN1050826A Process and device for processing materials from which methane and other chemicals, being harmful to the environment may escape |
| 04/17/1991 | EP0422265A1 Process and agent for treating fecal waste and sewage sludge |
| 04/17/1991 | CN2075195U Fast stoving device for chichen stool residue |
| 04/11/1991 | DE3932349A1 Solidification of liq. manure for use as fertiliser - by converting nitrogen-contg. cpds. into higher molecular cpds. and converting liq. components to a gel |
| 03/21/1991 | WO1991003440A2 Process for homogenizing or separating liquid manure |
| 03/19/1991 | US4999857 Toilet sewage treatment unit |
| 03/07/1991 | DE3929334A1 Verfahren zum homogenisieren oder separieren von guelle A method of homogenization or separate from guelle |
| 03/07/1991 | DE3928372A1 Homogenising and aerating liq. manure in pit - by wind-driven rotary stirrers below transparent cover lowered onto pit edge |
| 03/06/1991 | EP0415650A2 Gas impervious seal for process apparatus |
| 03/05/1991 | US4997572 High rate method for alkaline stabilization, beneficiating and pelletizing of wastewater treatment plant sludges |
| 02/28/1991 | DE3927346A1 Mobile system for treatment of liq. waste e.g. animal slurry, etc. - in which slurry is treated by vortex-forming nozzles in arrangement of small tanks connected to form treatment units |
| 02/21/1991 | DE3927486A1 Prodn. of fertiliser - by fermenting liq. manure with quicklime and adding dry solid, esp. waste solid |
| 02/17/1991 | WO1991002550A1 Process and plant for producing heat treated growth substrate and manure |
| 02/17/1991 | CA2064700A1 Process and plant for producing heat treated growth substrate and manure |
| 02/16/1991 | WO1991002582A1 Process and device for processing materials from which methane and other chemicals, being harmful to the environment, may escape |
| 02/16/1991 | CA2064698A1 Process and device for processing materials from which methane and other chemicals, being harmful to the environment, may escape |
| 02/14/1991 | DE3926269A1 Treatment of organic sludges from municipal and farm sources - by placing sludges in gas tight heat insulated room with solar heating for reduced environment pollution and energy |
| 01/30/1991 | CN1048842A Multiple element bed soil mix-agent for rice seeding and its producing technology |
| 01/23/1991 | EP0408547A1 Process for the production of fertiliser. |
| 01/02/1991 | CN1048207A Method for processing organic waste and apparatus therefor |
| 12/13/1990 | WO1990012771A3 Process for obtaining a solid fertilizer product from liquid manure |
| 12/12/1990 | CN1010777B Organic-inorganic compound fertilizer |
| 12/12/1990 | CN1010776B Manufacture method of organic-inorganic compound fertilizer |
| 11/20/1990 | US4971616 Earthworms and shreaded cellulose refuse |
| 11/08/1990 | DE3920539C1 Nutrient and fertiliser compsn. prodn. - by aerobic thermophilic fermentation of liq. manures and aerobic mesophilic fermentation |
| 11/08/1990 | DE3913883A1 Fertiliser pellets based on slurry or sewage - contg. lime, perlite, cement and fly ash |
| 11/07/1990 | EP0396390A1 Method for processing organic waste and apparatus therefor |
| 11/03/1990 | CA2015962A1 Method for processing organic waste and apparatus therefor |
| 11/01/1990 | WO1990012771A2 Process for obtaining a solid fertilizer product from liquid manure |
| 10/31/1990 | EP0394420A1 Fertilizer |
| 10/31/1990 | DE3913657A1 Verfahren zur verarbeitung von guelle zu einem festen duengemittel-produkt A method for processing of guelle fixed to a fertilizer product |
| 10/25/1990 | DE3936068A1 Compost and humus prodn. from organic waste - by multistage fermentation with periodic removal and addn. of liq. phase to control process |
| 10/11/1990 | DE3911024A1 Process and plant for reducing the liquid manure volume arising in animal husbandry |
| 09/12/1990 | EP0386221A1 Process for conversion of biomass |
| 08/29/1990 | EP0384329A1 Process for upgrading liquid manure |
| 08/09/1990 | WO1990008746A1 Mechanical system for a waste-to-fertilizer conversion process |
| 08/08/1990 | EP0380888A1 Mechanization of a process for converting waste into fertilizer |
| 08/08/1990 | EP0210196B1 Method and device for drying and conditioning poultry manure or similar pasty materials |
| 08/01/1990 | CN1044274A Method for processing of liquid manure and similar slurry materials, and apparatus for execution of method |
| 07/11/1990 | CN1043692A Multifunctional full-nutritious compound fertilizer for ginseng and its preparing process |
| 05/31/1990 | WO1990005703A1 Treatment of sludge |
| 05/30/1990 | EP0370565A1 A method for the preparation of fertilizer |
| 05/03/1990 | WO1990004575A1 Fertilizer |
| 04/26/1990 | DE3836182A1 Duengemittel, insbesondere fuer garten- und topfpflanzen Fertilizers, especially for horticultural and pot plants |
| 04/25/1990 | EP0365198A2 Feed material for maggots |
| 04/25/1990 | EP0364678A1 Process for composting waste in liquid form |
| 04/24/1990 | CA2001243A1 Fertilizer |
| 04/18/1990 | CN1041351A Process for making compost from waste matter present in liquid form |
| 04/05/1990 | WO1990003352A1 A process for composting waste in liquid form |
| 04/05/1990 | WO1990003351A1 Method for valorizing liquid manure from pigs and device for implementing such method |