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Class Information
Number: 71/31
Name: Chemistry: fertilizers > Processes and products > Inorganic material
Description: Methods of making fertilizer containing only inorganic materials and the corresponding products, when not provided for in any of the indented subclasses.


Sub-classes under this class:

Class Number Class Name Patents
71/61 Alkali metal or ammonium 126
71/63 Carbonates, oxides, sulfates, halides, etc. 233
71/54 Nitrogen-containing (except ammonium) 59
71/32 Phosphorus-containing 81
71/62 Silicon-containing 56


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7608126 Method for horticulture plant rejuvenation Oct. 27, 2009
7530196 Method for improving plant growth by application of a mixture of sulfur and complexing agent May. 12, 2009
7497891 Method for producing a fertilizer with micronutrients Mar. 3, 2009
7494526 Plant protection and growth stimulation by nanoscalar particle folial delivery Feb. 24, 2009
7487927 Fertilizing system and method by extracting nitrogen compounds from combustion exhaust gases Feb. 10, 2009
7459005 Chemical composition and method Dec. 2, 2008
7445657 Application methods for fine powders and uses thereof Nov. 4, 2008
7445927 Bioreactor system for biological degradation of oily sludge Nov. 4, 2008
7442224 Fertilizer compositions and methods of making and using same Oct. 28, 2008
7425228 Homogeneous, boron-doped alkaline earth peroxides Sep. 16, 2008
7410522 Fertilizer Aug. 12, 2008
7402190 Method for making formulated nitrogenous and complex fertilizer in highly homogenized spherical granule form starting from urea-formaldehyde liquid resins and the fertilizer made thereby Jul. 22, 2008
7320724 Compositions for the staged release of nutrients to plants Jan. 22, 2008
7201788 Process for the production of a boron salt and its use in the agronomic field Apr. 10, 2007
7189275 Permeable composition, controlled release product and methods for the production thereof Mar. 13, 2007
7175683 Process for transforming sludge into NPK type granulated fertilizer Feb. 13, 2007
7060656 Antibacterial rockwool growth medium for hydroponics Jun. 13, 2006
7044994 Fertilizer compositions and methods of making and using same May. 16, 2006
7018643 Pesticide delivery system Mar. 28, 2006
7001869 Seed treatment and method of treating seed Feb. 21, 2006
6987082 Controlled release products and processes for the preparation thereof Jan. 17, 2006
6939387 Soil enhancers Sep. 6, 2005
6878179 Fertilizer compositions and methods of making and using same Apr. 12, 2005
6855182 Lignocellulose fiber composite with soil conditioners Feb. 15, 2005
6852142 Organic-based fertilizer Feb. 8, 2005
6826866 Fully compatible water-soluble fertilizer and use Dec. 7, 2004
6793704 Weak alkaline organic fertilizer from organic waste including food waste and its manufacturing method Sep. 21, 2004
6783567 Composition and method for soil acidification Aug. 31, 2004
6749660 Solid-chemical composition and method of preparation for the anaerobic bioremediation of environmental contaminants coupled to denitrification Jun. 15, 2004
6733560 Water soluble complex fertilizers, method for their preparation and related use May. 11, 2004
6673375 Composition of multipurpose high functional alkaline solution composition, preparation thereof, and for the use of nonspecific immunostimulator Jan. 6, 2004
6638342 Process and facility for removing metal contaminants from fertilizer streams Oct. 28, 2003
6617412 Fertilizer encapsulation using sulfur containing polyols Sep. 9, 2003
6613117 Silicic fertilizer and production method thereof Sep. 2, 2003
6565860 Surfactant coated products and methods for their use in promoting plant growth and soil remediation May. 20, 2003
6558445 Dry fertilizer compositions and method for making the same May. 6, 2003
6551370 Method of growing rice plants and germinated brown rice Apr. 22, 2003
6550183 Agri- and horticultural material Apr. 22, 2003
6540808 Controlled release fertilizers based on self-assembled molecule coatings Apr. 1, 2003
6537340 Process for recycling materials used in water treatment Mar. 25, 2003
6517599 Organic biosolid waste treatment process for resource transformation, regeneration, and utilization Feb. 11, 2003
6491736 Polyhydric alcohol anti-dust agent for inorganic materials Dec. 10, 2002
6488734 Nitrification inhibitors, and the use of polyacids which contain a nitrification inhibitor for the treatment of inorganic fertilizers Dec. 3, 2002
6460290 Fully compatible surfactant-impregnated water-soluble fertilizer; concentrate; and use Oct. 8, 2002
6454828 Method of producing zinc diammine chloride and uses for same Sep. 24, 2002
6447810 Composition of multipurpose high functional alkaline solution composition, preparation thereof, and for the use of nonspecific immunostimulator Sep. 10, 2002
6432877 Lawn colorant composition having rearing effects Aug. 13, 2002
6413291 Soil conditioning agglomerates containing calcium Jul. 2, 2002
6409789 Organic biosolid waste treatment process for resource transformation, regeneration, and utilization Jun. 25, 2002
6406510 Methods for treating wastewater sludge Jun. 18, 2002

1 2 3


 
 
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