Patents by Inventor David E. Pegg

David E. Pegg 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: 8623591
    Abstract: Methods of isolating cellular products, such as pancreatic islets, may be used in diabetes research and therapeutic transplantation. The methods may involve providing a tissue having desired cells that are less prone to destructive freezing and undesired cells that are more prone to destructive freezing, or pre-treating a tissue to have such characteristics. The methods may involve freezing the tissue, disrupting the tissue, warming the tissue, and separating the desired cells from undesired cellular material to obtain the cellular product. The methods may thereby provide an enzyme-free or reduced-enzyme method of isolating a cellular product that is more consistent, reliable and less toxic than conventional methods. The methods may also yield an optimum quantity of cellular product that retain sufficient functional integrity to be useful as a transplantation resource.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: January 7, 2014
    Assignee: Lifeline Scientific, Inc.
    Inventors: Michael J. Taylor, David E. Pegg
  • Publication number: 20120322045
    Abstract: Methods of isolating cellular products, such as pancreatic islets, may be used in diabetes research and therapeutic transplantation. The methods may involve providing a tissue having desired cells that are less prone to destructive freezing and undesired cells that are more prone to destructive freezing, or pre-treating a tissue to have such characteristics. The methods may involve freezing the tissue, disrupting the tissue, warming the tissue, and separating the desired cells from undesired cellular material to obtain the cellular product. The methods may thereby provide an enzyme-free or reduced-enzyme method of isolating a cellular product that is more consistent, reliable and less toxic than conventional methods. The methods may also yield an optimum quantity of cellular product that retain sufficient functional integrity to be useful as a transplantation resource.
    Type: Application
    Filed: August 27, 2012
    Publication date: December 20, 2012
    Applicant: LIFELINE SCIENTIFIC, INC.
    Inventors: Michael J. TAYLOR, David E. Pegg
  • Patent number: 8252589
    Abstract: Methods of isolating cellular products, such as pancreatic islets, may be used in diabetes research and therapeutic transplantation. The methods may involve providing a tissue having desired cells that are less prone to destructive freezing and undesired cells that are more prone to destructive freezing, or pre-treating a tissue to have such characteristics. The methods may involve freezing the tissue, disrupting the tissue, warming the tissue, and separating the desired cells from undesired cellular material to obtain the cellular product. The methods may thereby provide an enzyme-free or reduced-enzyme method of isolating a cellular product that is more consistent, reliable and less toxic than conventional methods. The methods may also yield an optimum quantity of cellular product that retain sufficient functional integrity to be useful as a transplantation resource.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: August 28, 2012
    Inventors: Michael J. Taylor, David E. Pegg
  • Publication number: 20100151437
    Abstract: Methods of isolating cellular products, such as pancreatic islets, may be used in diabetes research and therapeutic transplantation. The methods may involve providing a tissue having desired cells that are less prone to destructive freezing and undesired cells that are more prone to destructive freezing, or pre-treating a tissue to have such characteristics. The methods may involve freezing the tissue, disrupting the tissue, warming the tissue, and separating the desired cells from undesired cellular material to obtain the cellular product. The methods may thereby provide an enzyme-free or reduced-enzyme method of isolating a cellular product that is more consistent, reliable and less toxic than conventional methods. The methods may also yield an optimum quantity of cellular product that retain sufficient functional integrity to be useful as a transplantation resource.
    Type: Application
    Filed: December 11, 2009
    Publication date: June 17, 2010
    Inventors: Michael J. Taylor, David E. Pegg