Patents by Inventor John L. Schenk
John L. Schenk 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).
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Patent number: 9422523Abstract: Improved flow cytometer system particularly adapted to use for sex-selected sperm sorting include enhanced sheath fluid and other strategies which minimize stress on the sperm cells, including a 2.9 percent sodium citrate sheath solution for bovine species and a hepes bovine gamete media for equine species. Improved collection systems and techniques for the process are described so that commercial applications of sperms samples as well as the resulting animals may be achieved.Type: GrantFiled: February 11, 2013Date of Patent: August 23, 2016Assignee: XY, LLCInventors: George E. Seidel, Lisa A. Herickhoff, John L. Schenk
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Patent number: 9365822Abstract: Improved flow cytometer system particularly adapted to use for sex-selected sperm sorting include enhanced sheath fluid and other strategies which minimize stress on the sperm cells, including a 2.9 percent sodium citrate sheath solution for bovine species and a hepes bovine gamete media for equine species. Improved collection systems and techniques for the process are described so that commercial applications of sperms samples as well as the resulting animals may be achieved.Type: GrantFiled: February 11, 2013Date of Patent: June 14, 2016Assignee: XY, LLCInventors: George E. Seidel, Lisa A. Herickhoff, John L. Schenk
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Publication number: 20150112125Abstract: A method of sorting sperm cells and a method of producing at least one sexed embryo. The method of sorting sperm cells includes the steps of establishing a sheath fluid environment including a citrate for stained sperm cells, establishing a stream including stained sperm cells in said sheath fluid environment, sensing a property of the stained sperm cells, and discriminating between stained sperm cells for a desired sex characteristic. The method of producing at least one sexed embryo includes the steps for sorting sperm cells in addition to fertilizing at least one egg with the sexed sperm to form at least one sexed embryo.Type: ApplicationFiled: December 23, 2014Publication date: April 23, 2015Applicant: XY, LLCInventors: George E. Seidel, Lisa A. Herickhoff, John L. Schenk
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Patent number: 8765365Abstract: A sperm cell process system providing to generate sperm cell insemination samples having controlled sperm cell fertility characteristics of sperm cells.Type: GrantFiled: July 29, 2013Date of Patent: July 1, 2014Assignee: XY, LLCInventors: John L. Schenk, George E. Seidel, Tae Kwang Suh
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Publication number: 20130309653Abstract: A sperm cell process system providing to generate sperm cell insemination samples having controlled sperm cell fertility characteristics of sperm cells.Type: ApplicationFiled: July 29, 2013Publication date: November 21, 2013Applicant: XY,LLCInventors: John L. Schenk, George E. Seidel, Tae Kwang Suh
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Patent number: 8497063Abstract: A sex selected equine embryo production system for the production of sex selected equine embryos and offspring by fertilization of oocytes with sex selected sperm by intracytoplasmic sperm injection.Type: GrantFiled: August 24, 2010Date of Patent: July 30, 2013Assignee: XY, LLCInventors: John L. Schenk, George E. Seidel, Tae Kwang Suh
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Patent number: 8486618Abstract: A heterogeneous inseminate including a first amount of sperm of a first animal and a second amount of sperm of a second animal of the same species, the first amount of sperm and the second amount of sperm sex-selected sperm of the same sex, useful in the in-vivo or in-vitro fertilization of an egg of a female animal of the same species for the production of sex-selected embryos and sex-selected offspring.Type: GrantFiled: July 18, 2011Date of Patent: July 16, 2013Assignee: XY, LLCInventors: John L. Schenk, George E. Seidel, Tae Kwang Suh, Juan F. Moreno, Maurice A. Rosenstein
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Patent number: 8426197Abstract: The inventive technology relates to methods and apparatus for reducing protein content in sperm cell extenders and may include one or more of the following features: techniques for reducing protein content in a sperm cell extender; techniques for reducing protein content in a cryoprotectant-containing B fraction of a sperm cell extender; techniques for preparing sperm cell extenders that do not require clarification; techniques for preparing low density gradient sperm cell extenders suitable for centrifugation; techniques for reducing protein content between individual steps in preparing a sperm cell extender, and techniques for establishing novel values of reduced protein content in sperm cell extenders.Type: GrantFiled: November 16, 2009Date of Patent: April 23, 2013Assignee: XY, LLCInventor: John L. Schenk
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Publication number: 20120270204Abstract: A method for magnetic sorting of mammalian sperm cells having damaged membranes is described. In an embodiment of the invention, carboxyl-group functionalized magnetic particles are conjugated to propidium iodide, the resulting composition is mixed with a sample of sperm cells, and sperm cells bound to magnetic particles are separated by magnetic-activated cell sorting.Type: ApplicationFiled: February 16, 2012Publication date: October 25, 2012Inventors: Daniel N. Fox, Tidhar Sadeh, Matthias J.G. Ottenberg, Kristie M. Melnik, John L. Schenk
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Patent number: 8211629Abstract: A sperm cell process system providing to generate sperm cell insemination samples having controlled sperm cell fertility characteristics of sperm cells.Type: GrantFiled: August 1, 2003Date of Patent: July 3, 2012Assignee: XY, LLCInventors: John L. Schenk, George E. Seidel, Tae Kwang Suh
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Publication number: 20110275052Abstract: A heterogeneous inseminate including a first amount of sperm of a first animal and a second amount of sperm of a second animal of the same species, the first amount of sperm and the second amount of sperm sex-selected sperm of the same sex, useful in the in-vivo or in-vitro fertilization of an egg of a female animal of the same species for the production of sex-selected embryos and sex-selected offspring.Type: ApplicationFiled: July 18, 2011Publication date: November 10, 2011Inventors: John L. Schenk, George E. Seidel, Tae Kwang Suh, Juan F. Moreno, Maurice A. Rosenstein
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Publication number: 20110078803Abstract: A sex selected equine embryo production system for the production of sex selected equine embryos and offspring by fertilization of oocytes with sex selected sperm by intracytoplasmic sperm injection.Type: ApplicationFiled: August 24, 2010Publication date: March 31, 2011Inventors: John L. Schenk, George E. Seidel, Tae Kwang Suh
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Publication number: 20110004052Abstract: The present invention provides a method of cryopreserving sperm that have been selected for a specific characteristic. In a preferred embodiment, the method is employed to freeze sex-selected sperm. Although the cryopreservation method of the invention can be used to freeze sperm selected by any number of selection methods, selection using flow cytometry is preferred. The present invention also provides a frozen sperm sample that has been selected for a particular characteristic, such as sex-type. In preferred embodiments, the frozen sperm sample includes mammalian sperm, such as, for example, human, bovine, equine, porcine, ovine, elk, or bison sperm. The frozen selected sperm sample can be used in a variety of applications. In particular, the sample can be thawed and used for fertilization. Accordingly, the invention also includes a method of using the frozen selected sperm sample for artificial insemination or in vitro fertilization.Type: ApplicationFiled: September 7, 2010Publication date: January 6, 2011Inventor: John L. Schenk
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Patent number: 7820425Abstract: The present invention provides a method of cryopreserving sperm that have been selected for a specific characteristic. In a preferred embodiment, the method is employed to freeze sex-selected sperm. Although the cryopreservation method of the invention can be used to freeze sperm selected by any number of selection methods, selection using flow cytometry is preferred. The present invention also provides a frozen sperm sample that has been selected for a particular characteristic, such as sex-type. In preferred embodiments, the frozen sperm sample includes mammalian sperm, such as, for example, human, bovine, equine, porcine, ovine, elk, or bison sperm. The frozen selected sperm sample can be used in a variety of applications. In particular, the sample can be thawed and used for fertilization. Accordingly, the invention also includes a method of using the frozen selected sperm sample for artificial insemination or in vitro fertilization.Type: GrantFiled: December 7, 2006Date of Patent: October 26, 2010Assignee: XY, LLCInventor: John L. Schenk
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Publication number: 20100216111Abstract: The inventive technology relates to methods and apparatus for reducing protein content in sperm cell extenders and may include one or more of the following features: techniques for reducing protein content in a sperm cell extender; techniques for reducing protein content in a cryoprotectant-containing B fraction of a sperm cell extender; techniques for preparing sperm cell extenders that do not require clarification; techniques for preparing low density gradient sperm cell extenders suitable for centrifugation; techniques for reducing protein content between individual steps in preparing a sperm cell extender, and techniques for establishing novel values of reduced protein content in sperm cell extenders.Type: ApplicationFiled: November 16, 2009Publication date: August 26, 2010Applicant: XY, INC.Inventor: John L. Schenk
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Patent number: 7618770Abstract: The inventive technology relates to methods and apparatus for reducing protein content in sperm cell extenders and may include one or more of the following features: techniques for reducing protein content in a sperm cell extender; techniques for reducing protein content in a cryoprotectant-containing B fraction of a sperm cell extender; techniques for preparing sperm cell extenders that do not require clarification; techniques for preparing low density gradient sperm cell extenders suitable for centrifugation; techniques for reducing protein content between individual steps in preparing a sperm cell extender, and techniques for establishing novel values of reduced protein content in sperm cell extenders.Type: GrantFiled: September 2, 2005Date of Patent: November 17, 2009Assignee: XY, Inc.Inventor: John L. Schenk
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Patent number: 7208265Abstract: The present invention provides a method of cryopreserving sperm that have been selected for a specific characteristic. In a preferred embodiment, the method is employed to freeze sex-selected sperm. Although the cryopreservation method of the invention can be used to freeze sperm selected by any number of selection methods, selection using flow cytometry is preferred. The present invention also provides a frozen sperm sample that has been selected for a particular characteristic, such as sex-type. In preferred embodiments, the frozen sperm sample includes mammalian sperm, such as, for example, human, bovine, equine, porcine, ovine, elk, or bison sperm. The frozen selected sperm sample can be used in a variety of applications. In particular, the sample can be thawed and used for fertilization. Accordingly, the invention also includes a method of using the frozen selected sperm sample for artificial insemination or in vitro fertilization.Type: GrantFiled: January 5, 2000Date of Patent: April 24, 2007Assignee: XY, Inc.Inventor: John L. Schenk
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Patent number: 7195920Abstract: Improved flow cytometer system particularly adapted to use for sex-selected sperm sorting include enhanced sheath fluid and other strategies which minimize stress on the sperm cells, including a 2.9 percent sodium citrate sheath solution for bovine species and a HEPES bovine gamete media for equine species. Improved collection systems and techniques for the process are described so that commercial applications of sperms samples as well as the resulting animals may be achieved.Type: GrantFiled: February 25, 2003Date of Patent: March 27, 2007Assignee: XY, Inc.Inventors: George E. Seidel, Lisa Herickhoff, John L. Schenk
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Publication number: 20030157475Abstract: The present invention provides a method of cryopreserving sperm that have been selected for a specific characteristic. In a preferred embodiment, the method is employed to freeze sex-selected sperm. Although the cryopreservation method of the invention can be used to freeze sperm selected by any number of selection methods, selection using flow cytometry is preferred. The present invention also provides a frozen sperm sample that has been selected for a particular characteristic, such as sex-type. In preferred embodiments, the frozen sperm sample includes mammalian sperm, such as, for example, human, bovine, equine, porcine, ovine, elk, or bison sperm. The frozen selected sperm sample can be used in a variety of applications. In particular, the sample can be thawed and used for fertilization. Accordingly, the invention also includes a method of using the frozen selected sperm sample for artificial insemination or in vitro fertilization.Type: ApplicationFiled: October 7, 2002Publication date: August 21, 2003Applicant: XY, Inc.Inventor: John L. Schenk
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Publication number: 20030129091Abstract: Improved flow cytometer system particularly adapted to use for sex-selected sperm sorting include enhanced sheath fluid and other strategies which minimize stress on the sperm cells, including a 2.9 percent sodium citrate sheath solution for bovine species and a hepes bovine gamete media for equine species. Improved collection systems and techniques for the process are described so that commercial applications of sperms samples as well as the resulting animals may be achieved.Type: ApplicationFiled: February 25, 2003Publication date: July 10, 2003Applicant: Colorado State University through its agent, Colorado State University Research FoundationInventors: George E. Seidel, Lisa Herickhoff, John L. Schenk