Patents by Inventor David G. Cran

David G. Cran 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).

  • Methods for separating frozen-thawed spermatozoa into X-chromosome bearing and Y-chromosome bearing populations
    Patent number: 8652769
    Abstract: Devices, compositions, and methods for handling, separating, packaging, and utilization of spermatozoa (1) that can be derived from previously frozen sperm samples collected from a male mammal. Specifically, techniques to uniformily stain (2) spermatozoal DNA even when derived from previously frozen sperm and separation techniques to separate and isolate spermatozoa even when derived from previously frozen sperm samples into X-chromosome bearing and Y-chromosome bearing populations having high purity.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: February 18, 2014
    Assignee: XY, LLC
    Inventors: George E. Seidel, Tae Kwang Suh, Kehuan Lu, David G. Cran
  • Separation systems of frozen-thawed spermatozoa into X-chromosome bearing and Y-chromosome bearing populations
    Patent number: 7771921
    Abstract: Devices, compositions, and methods for handling, separating, packaging, and utilization of spermatozoa (1) that can be derived from previously frozen sperm samples collected from a male mammal. Specifically, techniques to uniformly stain (2) spermatozoal DNA even when derived from previously frozen sperm and separation techniques to separate and isolate spermatozoa even when derived from previously frozen sperm samples into X-chromosome bearing and Y-chromosome bearing populations having high purity.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: August 10, 2010
    Assignee: XY, LLC
    Inventors: George E. Seidel, Kehuan Lu, Tae Kwang Suh, David G. Cran
  • System to separate frozen-thawed spermatozoa into x-chromosome bearing and y-chromosome bearing populations
    Patent number: 7713687
    Abstract: Devices, compositions, and methods for handling, separating, packaging, and utilization of spermatozoa (1) that can be derived from previously frozen sperm samples collected from a male mammal. Specifically, techniques to uniformity stain (2) spermatozoal DNA even when derived from previously frozen sperm and separation techniques to separate and isolate spermatozoa even when derived from previously frozen sperm samples into X-chromosome bearing and Y-chromosome bearing populations having high purity.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: May 11, 2010
    Assignee: XY, Inc.
    Inventors: George E. Seidel, Kehuan Lu, Tae Kwang Suh, David G. Cran