| Patents for C05F 3 - Fertilisers from human or animal excrements, e.g. manure (3,247) |
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| 03/04/1980 | US4191643 Method for the mechanical preparation of organic wastes in a biological digestion process |
| 03/04/1980 | US4191527 Apparatus for the dehydration of waste and vegetable matter |
| 11/13/1979 | US4174371 Organic waste treatment system for making humus or compost, aerobic process |
| 10/31/1979 | EP0005113A1 Process and apparatus for the deodorisation and transformation into fertilizer of pig dung |
| 10/23/1979 | CA1065067A1 Arrangement for mouldering organic waste material |
| 10/04/1979 | WO1979000719A1 Method for the production of methane and a plant for carrying out the method |
| 10/02/1979 | US4169878 Helical composter |
| 09/25/1979 | US4169048 Anaerobic fermentation of excreta in a collapsible bag |
| 07/10/1979 | US4160656 Formaldehyde and peroxy compound |
| 05/29/1979 | CA1055269A1 Device for preparation of earth improving substances from organic waste |
| 05/22/1979 | US4155975 Deodorant and method for deodorizing livestock manure |
| 05/15/1979 | CA1054307A1 Biological dry-toilet |
| 04/17/1979 | US4149870 Suspension of basic igneous rock and malodorant acids with water, hydrolysis, neutralization, decomposition |
| 04/17/1979 | CA1052591A1 Landfill and soil conditioner |
| 02/13/1979 | US4139640 Method of effecting the aerobic thermophilic decomposition of organic waste materials |
| 02/13/1979 | CA1048338A1 Apparatus for processing cattle excrement |
| 02/06/1979 | US4138333 Waste material digesters |
| 01/23/1979 | US4135908 Method of and apparatus for aerobic decomposition of organic solids |
| 01/16/1979 | US4134749 Organic waste material digestion apparatus and system |
| 01/16/1979 | CA1046303A1 Animal waste odor treatment |
| 01/09/1979 | US4133850 Apparatus in a tank for aerating liquids which tend to froth |
| 11/28/1978 | US4127383 Lignosulfonate |
| 08/01/1978 | US4104048 Manure treating process |
| 06/27/1978 | US4096592 Composting toilet |
| 05/09/1978 | US4088796 Method for making animal feed from manure |
| 05/09/1978 | US4087869 Toilet in which solid wastes are collected and decomposed |
| 04/18/1978 | US4084269 Arrangement for mouldering organic waste material |
| 04/04/1978 | US4082532 Process for making extruded cattle manure pellets |
| 03/28/1978 | US4081366 Process for dewatering organic waste product |
| 03/07/1978 | US4078094 Acidification to form soluble salts |
| 01/24/1978 | US4070175 For fertilizers |
| 11/29/1977 | US4060390 Apparatus for producing composts |
| 11/01/1977 | US4056380 Method of producing an organic soil additive and the product thereof |
| 08/09/1977 | US4041182 Slurrying raw wastes, adding hydrolyzing enzymes, aerobic process whereby microorganisms proliferate |
| 08/09/1977 | US4040810 Bioreduction of manure, fly larvae |
| 08/09/1977 | US4040190 Method and apparatus for drying manure or mud or the like |
| 06/07/1977 | US4028030 Installation for pelletizing organic waste materials |
| 05/17/1977 | US4023954 Method of producing high protein fertilizers and bird and stock feed from waste |
| 02/22/1977 | US4008689 Waste collection and conversion system |
| 08/24/1976 | US3976465 Sterilized organic waste product and process of producing same |
| 07/27/1976 | US3971720 Method of and apparatus for processing cattle excrement |
| 06/29/1976 | US3966450 Hydrogen peroxide, adjusting the ph with a mineral acid |
| 06/01/1976 | US3961096 Conservation and conversion of poultry waste products |
| 06/01/1976 | US3960718 Method and apparatus for treating liquid sewage and waste |
| 06/01/1976 | US3959829 Improvements in and relating to dry closets |
| 03/16/1976 | US3944408 Method for producing biological fertilizers from sewage |
| 03/09/1976 | US3942970 Process for treating sewage sludge and fertilizer products thereof |