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Class Information
Number: 71/12
Name: Chemistry: fertilizers > Processes and products > Organic material-containing > From sewage or night soil
Description: Processes of preparing fertilizer from sewage or night soil, and the corresponding products.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7591952 |
Water treatment mixture and methods and system for use |
Sep. 22, 2009 |
| 7513927 |
Methods of controlling chemical self-heating of organic-containing materials |
Apr. 7, 2009 |
| 7507577 |
Treatment apparatus for excrement and a bio-toilet using the same and a treatment method for decomposing excrement |
Mar. 24, 2009 |
| 7504035 |
Treatment of putrescrible cakes |
Mar. 17, 2009 |
| 7442224 |
Fertilizer compositions and methods of making and using same |
Oct. 28, 2008 |
| 7425271 |
Method for treating sludge |
Sep. 16, 2008 |
| 7361283 |
Extraction and treatment of heavy metals |
Apr. 22, 2008 |
| 7169204 |
Sewage sludge recycling with a pipe cross-reactor |
Jan. 30, 2007 |
| 7135116 |
Process for recovery of nutrients from wastewater |
Nov. 14, 2006 |
| 7044994 |
Fertilizer compositions and methods of making and using same |
May. 16, 2006 |
| 6966941 |
Sewage sludge treatment |
Nov. 22, 2005 |
| 6922941 |
Method for making a plant-cultivating web from excretive sludge of domestic animals |
Aug. 2, 2005 |
| 6878179 |
Fertilizer compositions and methods of making and using same |
Apr. 12, 2005 |
| 6863826 |
Animal waste effluent treatment |
Mar. 8, 2005 |
| 6800109 |
Organic waste treatment system |
Oct. 5, 2004 |
| 6777469 |
Urea condensate-sewer sludge products |
Aug. 17, 2004 |
| 6767381 |
Method of producing compost tea and apparatus therefor |
Jul. 27, 2004 |
| 6758879 |
Sewage sludge recycling with a pipe cross-reactor |
Jul. 6, 2004 |
| 6752849 |
Method for disinfecting and stabilizing organic wastes with mineral by-products |
Jun. 22, 2004 |
| 6752848 |
Method for disinfecting and stabilizing organic wastes with mineral by-products |
Jun. 22, 2004 |
| 6733558 |
Beneficiated sludge |
May. 11, 2004 |
| 6682578 |
Methods for producing fertilizers and feed supplements from agricultural and industrial wastes |
Jan. 27, 2004 |
| 6569342 |
Process for treating waters, soils, sediments and/or silts |
May. 27, 2003 |
| 6565744 |
Waste water cleaning system |
May. 20, 2003 |
| 6503287 |
System and method of soil distribution, such as a soil blend, capable of being blown into place |
Jan. 7, 2003 |
| 6497741 |
Methods for producing fertilizers and feed supplements from agricultural and industrial wastes |
Dec. 24, 2002 |
| 6409788 |
Methods for producing fertilizers and feed supplements from agricultural and industrial wastes |
Jun. 25, 2002 |
| 6407038 |
Method for controlling plant-parasitic nematodes |
Jun. 18, 2002 |
| 6406510 |
Methods for treating wastewater sludge |
Jun. 18, 2002 |
| 6402801 |
Method for treating ammonia-containing organic waste |
Jun. 11, 2002 |
| 6398840 |
Process for treating sludge |
Jun. 4, 2002 |
| 6298576 |
Cage compactor dryer apparatus for treating waste materials |
Oct. 9, 2001 |
| 6248148 |
Method for treating ammonia-containing organic waste |
Jun. 19, 2001 |
| 6197081 |
Method for bio-refining waste organic material to produce denatured and sterile nutrient products |
Mar. 6, 2001 |
| 6174472 |
Process for forming soil enhancing pellets |
Jan. 16, 2001 |
| 6159263 |
Sewage sludge recycling with a pipe cross-reactor |
Dec. 12, 2000 |
| 6123747 |
Apparatus and method for manufacturing barnyard manure using sewage and sludge |
Sep. 26, 2000 |
| 6117203 |
Pathogen reduction system used in treating wastewater |
Sep. 12, 2000 |
| 6074451 |
Microorganism fertilizer, a method for manufacturing the microorganism fertilizer, and a method for utilizing the microorganism fertilizer |
Jun. 13, 2000 |
| 6056800 |
Method of simultaneously composting anaerobic and aerobic material |
May. 2, 2000 |
| 6056885 |
Ozone disinfecting, decontaminating and deodorizing of animal manure |
May. 2, 2000 |
| 6027543 |
Method for removing a heavy metal from sludge |
Feb. 22, 2000 |
| 5984993 |
Method and composition for odor control |
Nov. 16, 1999 |
| 5984992 |
Sewage sludge recycling with a pipe cross-reactor |
Nov. 16, 1999 |
| 5976211 |
Fertilizer and process for production thereof |
Nov. 2, 1999 |
| 5916437 |
Domestic sewage cleaning system |
Jun. 29, 1999 |
| 5882592 |
Method for processing water-bound waste |
Mar. 16, 1999 |
| 5755058 |
Farming method using waste material |
May. 26, 1998 |
| 5700687 |
Odor control system |
Dec. 23, 1997 |
| 5676727 |
Method of producing slow-release nitrogenous organic fertilizer from biomass |
Oct. 14, 1997 |
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