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Class Information
Number: 71/34
Name: Chemistry: fertilizers > Processes and products > Inorganic material > Phosphorus-containing > Phosphates > Alkali metal and ammonium only
Description: Methods directed to the preparation of inorganic fertilizers containing alkali metal or ammonium phosphates as the only phosphates present.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7588744 |
Method of recovering phosphate for reuse as a fertilizer |
Sep. 15, 2009 |
| 7497891 |
Method for producing a fertilizer with micronutrients |
Mar. 3, 2009 |
| 7470304 |
Process for the manufacture of sulphur-containing ammonium phosphate fertilizers |
Dec. 30, 2008 |
| 7452398 |
Phosphate and potash(PK)-containing compound fertilizer |
Nov. 18, 2008 |
| 7252697 |
Methods for making controlled-release ammonium phosphate fertilizer |
Aug. 7, 2007 |
| 7128880 |
Organic recycling with a pipe-cross or tubular reactor |
Oct. 31, 2006 |
| 6953537 |
Corrosion inhibitor |
Oct. 11, 2005 |
| 6936087 |
Soil conditioning agglomerates containing calcium |
Aug. 30, 2005 |
| 6852142 |
Organic-based fertilizer |
Feb. 8, 2005 |
| 6826866 |
Fully compatible water-soluble fertilizer and use |
Dec. 7, 2004 |
| 6824584 |
Ammonium phosphate/phosphite fertilizer compound |
Nov. 30, 2004 |
| 6821311 |
Method for treating fertilizer process solutions |
Nov. 23, 2004 |
| 6776816 |
Methods for accelerating production of magnesium ammonium phosphate while attaining higher yields thereof and a slow-release fertilizer produced therefrom |
Aug. 17, 2004 |
| 6733560 |
Water soluble complex fertilizers, method for their preparation and related use |
May. 11, 2004 |
| 6645267 |
Plant growing media |
Nov. 11, 2003 |
| 6515177 |
Method of coating materials and materials formed thereby |
Feb. 4, 2003 |
| 6488734 |
Nitrification inhibitors, and the use of polyacids which contain a nitrification inhibitor for the treatment of inorganic fertilizers |
Dec. 3, 2002 |
| 6471741 |
Liquid soil enrichment microbial compositions |
Oct. 29, 2002 |
| 6460290 |
Fully compatible surfactant-impregnated water-soluble fertilizer; concentrate; and use |
Oct. 8, 2002 |
| 6432156 |
Method of coating materials and materials formed thereby |
Aug. 13, 2002 |
| 6423109 |
Free flowing fertilizer composition with enhanced deposition/anti drift characteristics |
Jul. 23, 2002 |
| 6413291 |
Soil conditioning agglomerates containing calcium |
Jul. 2, 2002 |
| 6365120 |
Method for hardening granular inorganic salt compounds |
Apr. 2, 2002 |
| 6364926 |
Concentrated liquid adjuvant and fertilizer |
Apr. 2, 2002 |
| 6355083 |
Dust control composition for fertilizer and method of treatment of fertilizer |
Mar. 12, 2002 |
| 6344066 |
Process for the preparation of fertilizers and sulfur compounds |
Feb. 5, 2002 |
| 6331198 |
Composition useful as nitrification inhibiting additive for ammonia producing fertilizers |
Dec. 18, 2001 |
| 6325836 |
Soil conditioning agglomerates containing calcium |
Dec. 4, 2001 |
| 6322606 |
Coated granular fertilizer and method for producing same |
Nov. 27, 2001 |
| 6312492 |
Beneficiation of animal manure |
Nov. 6, 2001 |
| 6312493 |
Water soluble fertilizer compositions |
Nov. 6, 2001 |
| 6299663 |
Granulation method and apparatus therefor |
Oct. 9, 2001 |
| 6280494 |
Method for producing fertilizer grade DAP having an increased nitrogen concentration in a spray column |
Aug. 28, 2001 |
| 6274105 |
Process for producing high-purity potassium salts |
Aug. 14, 2001 |
| 6241796 |
Method for producing fertilizer grade DAP having an increased nitrogen concentration from recycle |
Jun. 5, 2001 |
| 6241795 |
Soluble fertilizer formulation |
Jun. 5, 2001 |
| 6176891 |
Coated granular fertilizer and method for producing same |
Jan. 23, 2001 |
| 6168643 |
Inorganic phosphorus fertilizer |
Jan. 2, 2001 |
| 6139597 |
Controlled release fertilizer compositions and processes for the preparation thereof |
Oct. 31, 2000 |
| 6080221 |
Vacuum coated particulate fertilizers |
Jun. 27, 2000 |
| 6056801 |
Peat based compositions |
May. 2, 2000 |
| 6015445 |
Anti-caking solids |
Jan. 18, 2000 |
| 6001147 |
Unsymmetrical polyureaurethane fertilizer encapsulation |
Dec. 14, 1999 |
| 5997602 |
Aqueous fertilzer suspension containing at least phosphate ions and calcium or magnesium ions and a use of the suspension |
Dec. 7, 1999 |
| 5997601 |
Method for making moisture resistant calcium-containing particles |
Dec. 7, 1999 |
| 5993505 |
Controlled release fertilizer compositions and processes for the preparation thereof |
Nov. 30, 1999 |
| 5980601 |
Anti-caking solids |
Nov. 9, 1999 |
| 5968222 |
Dust reduction agents for granular inorganic substances |
Oct. 19, 1999 |
| 5917110 |
Moisture-resistant calcium containing particles |
Jun. 29, 1999 |
| 5885320 |
Anti-caking process |
Mar. 23, 1999 |
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