Patents by Inventor Johannes Christiaan Pretorius

Johannes Christiaan Pretorius 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: 8697149
    Abstract: The invention provides extracts and preparations based on the species Tulbaghia violacea (Harv.) (wild garlic), which elicits a significant antimicrobial, preferably antifungal activity in vitro and in vivo, even under field and glasshouse conditions. Moreover, these extracts deriving from the soil parts as well as of the aerial parts of the plant elicit a significant bio-stimulatory activity, expressed, above all, by an increased growth metabolism supporting seed growth. Furthermore, combined extracts or preparations from Tulbaghia violacea and species of the genus Agapanthus show a higher antifungal and bio-stimulatory efficacy as compared to the extracts or preparations of the single species, indicating that synergism is participated in the involved biological processes.
    Type: Grant
    Filed: June 24, 2006
    Date of Patent: April 15, 2014
    Assignees: Agrarforum AG, Agrarforum SA (Pty) Ltd.
    Inventor: Johannes Christiaan Pretorius
  • Patent number: 8435571
    Abstract: The invention relates to plant extracts, especially based on species of the genus Agapanthus and combinations thereof with other extracts deriving from other plants. The invention further relates to the isolation, purification and identification of compounds in these extracts. The plant extracts and the isolated substances show significant antimicrobial activity, especially antifungal activity, and bio-stimulatory efficacy, when applied to other plants in vitro and in vivo, including under field conditions. The products according to this invention are suitable to be used as plant protecting agents for many crops and economic plants as an alternative for chemical pesticides.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: May 7, 2013
    Assignees: Afrarforum AG, Agrarforum SA (Pty.) Ltd.
    Inventor: Johannes Christiaan Pretorius
  • Publication number: 20120015062
    Abstract: The invention relates to plant extracts, especially based on species of the genus Agapanthus and combinations thereof with other extracts deriving from other plants. The invention further relates to the isolation, purification and identification of compounds in these extracts. The plant extracts and the isolated substances show significant antimicrobial activity, especially antifungal activity, and bio-stimulatory efficacy, when applied to other plants in vitro and in vivo, including under field conditions. The products according to this invention are suitable to be used as plant protecting agents for many crops and economic plants as an alternative for chemical pesticides.
    Type: Application
    Filed: January 6, 2011
    Publication date: January 19, 2012
    Applicants: AGRARFORUM SA (PTY) LTD., AGRARFORUM AG
    Inventor: Johannes Christiaan Pretorius
  • Publication number: 20090275472
    Abstract: The invention provides extracts and preparations based on the species Tulbaghia violacea (Harv.) (wild garlic), which elicits a significant antimicrobial, preferably antifungal activity in vitro and in vivo, even under field and glasshouse conditions. Moreover, these extracts deriving from the soil parts as well as of the aerial parts of the plant elicit a significant bio-stimulatory activity, expressed, above all, by an increased growth metabolism supporting seed growth. Furthermore, combined extracts or preparations from Tulbaghia violacea and species of the genus Agapanthus show a higher antifungal and bio-stimulatory efficacy as compared to the extracts or preparations of the single species, indicating that synergism is participated in the involved biological processes.
    Type: Application
    Filed: June 24, 2006
    Publication date: November 5, 2009
    Applicants: AGRARFORUM AG, AGRARFORUM SA (PTY) LTD.
    Inventor: Johannes Christiaan Pretorius
  • Publication number: 20090258097
    Abstract: The invention relates to plant extracts, especially based on species of the genus Agapanthus and combinations thereof with other extracts deriving from other plants. The invention further relates to the isolation, purification and identification of compounds in these extracts. The plant extracts and the isolated substances show significant antimicrobial activity, especially antifungal activity, and bio-stimulatory efficacy, when applied to other plants in vitro and in vivo, including under field conditions. The products according to this invention are suitable to be used as plant protecting agents for many crops and economic plants as an alternative for chemical pesticides.
    Type: Application
    Filed: June 24, 2006
    Publication date: October 15, 2009
    Applicants: AGRARFORUM AG, AGRARFORUM SA (PTY) LTD.
    Inventor: Johannes Christiaan Pretorius