Patents by Inventor P. Samuel Jayakumar

P. Samuel Jayakumar 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).

  • In vitro methods for the induction and maintenance of plant cell lines as single suspension cells with intact cell walls
    Patent number: 8206983
    Abstract: The subject invention provides simple and consistent methods to break suspension cell aggregates to single cells with intact primary cell walls. The subject invention relates in part to cell separation of suspension cell aggregates cultured in medium containing pectin-degrading enzymes or tubulin de-polymerizing compounds including colchicine. The subject invention also relates to novel uses of compounds for such purposes. Another aspect of the subject invention relates to transformation of the subject, isolated cells. Such processes simplify and integrate single-cell-based transformation and selection processes into transgenic and transplastomic event-generation work processes. The subject invention also removes technical constraints and produces marker-free and uniformly expressing transgenic lines in a high throughput fashion to support various needs of animal health, biopharma, and trait and crop protection platforms.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: June 26, 2012
    Assignee: Dow AgroSciences, LLC.
    Inventors: P. Samuel Jayakumar, Jeffrey Beringer, Paul R. Schmitzer, Frank Burroughs, Robbi J. Garrison, William M. Ainley, Narasimha C. Samboju
  • IN VITRO METHODS FOR THE INDUCTION AND MAINTENANCE OF PLANT CELL LINES AS SINGLE SUSPENSION CELLS WITH INTACT CELL WALLS, AND TRANSFORMATION THEREOF
    Publication number: 20120034697
    Abstract: The subject invention provides simple and consistent methods to break suspension cell aggregates to single cells with intact primary cell walls. The subject invention relates in part to cell separation of suspension cell aggregates cultured in medium containing pectin-degrading enzymes or tubulin de-polymerizing compounds including colchicine. The subject invention also relates to novel uses of compounds for such purposes. Another aspect of the subject invention relates to transformation of the subject, isolated cells. Such processes simplify and integrate single-cell-based transformation and selection processes into transgenic and transplastomic event-generation work processes. The subject invention also removes technical constraints and produces marker-free and uniformly expressing transgenic lines in a high throughput fashion to support various needs of animal health, biopharma, and trait and crop protection platforms.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 9, 2012
    Applicant: Dow AgroSciences LLC
    Inventors: P. Samuel Jayakumar, Jeffrey Beringer, Paul R. Schmitzer, Frank Burroughs, Robbi J. Garisson, William M. Ainley, Narasimha C. Samboju
  • In vitro methods for the induction and maintenance of plant cell lines as single suspension cells with intact cell walls, and transformation thereof
    Patent number: 8012752
    Abstract: The subject invention provides simple and consistent methods to break suspension cell aggregates to single cells with intact primary cell walls. The subject invention relates in part to cell separation of suspension cell aggregates cultured in medium containing pectin-degrading enzymes or tubulin de-polymerizing compounds including colchicine. The subject invention also relates to novel uses of compounds for such purposes. Another aspect of the subject invention relates to transformation of the subject, isolated cells. Such processes simplify and integrate single-cell-based transformation and selection processes into transgenic and transplastomic event-generation work processes. The subject invention also removes technical constraints and produces marker-free and uniformly expressing transgenic lines in a high throughput fashion to support various needs of animal health, biopharma, and trait and crop protection platforms.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: September 6, 2011
    Assignee: Dow AgroSciences LLC
    Inventors: P. Samuel Jayakumar, Jeffrey Beringer, Paul R. Schmitzer, Frank Burroughs, Robbi J. Garrison, William M. Ainley, Narasimha C. Samboju
  • In Vitro Methods for the Induction and Maintenance of Plant Cell Lines as Single Suspension Cells With Intact Cell Walls, and Transformation Thereof
    Publication number: 20100159598
    Abstract: The subject invention provides simple and consistent methods to break suspension cell aggregates to single cells with intact primary cell walls. The subject invention relates in part to cell separation of suspension cell aggregates cultured in medium containing pectin-degrading enzymes or tubulin de-polymerizing compounds including colchicine. The subject invention also relates to novel uses of compounds for such purposes. Another aspect of the subject invention relates to transformation of the subject, isolated cells. Such processes simplify and integrate single-cell-based transformation and selection processes into transgenic and transplastomic event-generation work processes. The subject invention also removes technical constraints and produces marker-free and uniformly expressing transgenic lines in a high throughput fashion to support various needs of animal health, biopharma, and trait and crop protection platforms.
    Type: Application
    Filed: December 27, 2007
    Publication date: June 24, 2010
    Applicant: Dow AgroSciences LLC
    Inventors: P. Samuel Jayakumar, Jeffrey Beringer, Paul R. Schmitzer, Frank Burroughs, Robbi J. Garrison, William M. Ainley, Narasimha C. Samboju