Patents by Inventor Willem Abraham Van Rooijen

Willem Abraham Van Rooijen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7875096
    Abstract: This invention relates to a process for producing an organic fertilizer, and an organic fertilizer containing organic carbon carriers. According to an embodiment of the invention, the organic fertilizer is produced by mixing organic matter with water adding an organic acid or acids such as EDTA, amino acids, fuivic acid or propionic acid, preferably propionic acid (25%); or a base such as KOH or NaOH1 preferably KOH to the mixture; and decomposing organic matter with the acid/s or base in order to extract organic carbon solution having a carbon content of 10 to 20. The invention also relates to an organic fertilizer containing macro or micro nutrientfe and an organic carrier bound to or complexed with an organic carbon carrier.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: January 25, 2011
    Assignee: International Carbon Technologies AS (PTY) Ltd.
    Inventor: Willem Abraham Van Rooijen
  • Publication number: 20100251790
    Abstract: This invention relates to a process for producing a granular dry organic fertilizer and the fertilizer produced by the process. The process includes the steps of providing a peat with a pH of 6-7; if necessary, sifting the peat through a sieve to remove fibres bigger than 4 mm; treating the peat with a base and forming a mixture; treating the mixture with an organic acid such as propionic acid, EDTA, amino acids, fulvic acid; and then granulating the mixture to produce a granulated dry organic carbon fertilizer which is pH buffered at 6-7. This granular fertilizer is a complete fertilizer and is acceptable for the use in organic farming all over the world.
    Type: Application
    Filed: September 12, 2008
    Publication date: October 7, 2010
    Inventors: Willem Abraham Van Rooijen, Louis Johannes Klue
  • Publication number: 20080302152
    Abstract: This invention relates to a process for producing an organic fertilizer, and an organic fertilizer containing organic carbon carriers. According to an embodiment of the invention, the organic fertilizer is produced by mixing organic matter with water adding an organic acid or acids such as EDTA, amino acids, fuivic acid or propionic acid, preferably propionic acid (25%); or a base such as KOH or NaOH1 preferably KOH to the mixture; and decomposing organic matter with the acid/s or base in order to extract organic carbon solution having a carbon content of 10 to 20. The invention also relates to an organic fertilizer containing macro or micro nutrientfe and an organic carrier bound to or complexed with an organic carbon carrier.
    Type: Application
    Filed: December 18, 2006
    Publication date: December 11, 2008
    Applicant: INTERNATIONAL CARBON TECHNOLOGIES (PTY) LTD.
    Inventor: Willem Abraham Van Rooijen