Patents by Inventor Christopher R. Knutson
Christopher R. Knutson 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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Publication number: 20240053371Abstract: Disclosed are dispensers (100, 200, 300) and methods for dispensing and degassing a liquid (102). The dispensers and methods may include a heater (308) and a first tube (124, 502) constructed of a first material. The first tube may include a first end (124A) operable to be connected to a source (104) of the liquid and a second end (124B). The first tube may be connected to the heater via a conductive pathway thermally connecting the heater to the first tube. The first material may have a permeability such that a portion of the gas dissolved in the liquid passes through the first material to an atmosphere upon being degassed from a portion of the liquid within the first tube (124, 502).Type: ApplicationFiled: December 31, 2021Publication date: February 15, 2024Applicant: Beckman Coulter, Inc.Inventors: Christopher R. Knutson, Kevin L. NOWAK, Jon P. LINDQUIST, Jr., Gamachu MELKAMU, Glenn A. DAVIS
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Publication number: 20190390164Abstract: The present invention provides novel methods of cell staining, such as bovine sperm, using electroporation or osmolality treatments at viability-enhancing temperatures. Furthermore, methods of highly efficient cell sorting that are especially suitable in sorting bovine sperm using novel cell staining procedures are also provided.Type: ApplicationFiled: September 5, 2019Publication date: December 26, 2019Inventors: Amy L. Morjal, Christopher R. Knutson, Daniel Mueth, Joseph Plewa, Evan Tanner
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Publication number: 20170204370Abstract: The present invention provides novel methods of cell staining, such as bovine sperm, using electroporation or osmolality treatments at viability-enhancing temperatures. Furthermore, methods of highly efficient cell sorting that are especially suitable in sorting bovine sperm using novel cell staining procedures are also provided.Type: ApplicationFiled: March 31, 2017Publication date: July 20, 2017Inventors: Amy L. Morjal, Christopher R. Knutson, Daniel Mueth, Joseph Plewa, Evan Tanner
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Publication number: 20170016879Abstract: The present invention provides novel methods of cell staining, such as bovine sperm, using electroporation or osmolality treatments at viability-enhancing temperatures. Furthermore, methods of highly efficient cell sorting that are especially suitable in sorting bovine sperm using novel cell staining procedures are also provided.Type: ApplicationFiled: September 26, 2016Publication date: January 19, 2017Inventors: Amy L. Morjal, Christopher R. Knutson, Daniel Mueth, Joseph Plewa, Evan Tanner
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Patent number: 9453849Abstract: The present invention provides novel methods of cell staining, such as bovine sperm, using electroporation or osmolality treatments at viability-enhancing temperatures. Furthermore, methods of highly efficient cell sorting that are especially suitable in sorting bovine sperm using novel cell staining procedures are also provided.Type: GrantFiled: February 11, 2009Date of Patent: September 27, 2016Assignee: PREMIUM GENETICS (UK) LIMITEDInventors: Amy L. Anderson, Christopher R. Knutson, Daniel Mueth, Joseph Plewa, Evan Tanner
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Publication number: 20160116490Abstract: Methods and devices for evaluating a sample, e.g., a plasma sample, from a subject, for detecting a target red blood cell protein or antibody are disclosed. In one embodiment, optimized antibody screening methods and devices significantly reduce the level of non-specific binding to a surface (e.g., a test surface bound with a red blood cell (rbcm) preparation), thus allowing for more efficient detection and reduced test time. In one embodiment, the optimized antibody screening method includes an immunoglobulin G (IgG) binding moiety that binds selectively and specifically to the plasma IgG present relative to the binding to the lysed rbcm preparation. In another embodiment, an optimized antibody screening method is disclosed whereby non-specific binding caused by lysed red blood cell membrane preparations can be reduced by an agent that specifically cleaves a human IgG in the hinge region.Type: ApplicationFiled: August 7, 2013Publication date: April 28, 2016Applicant: ARRYX, INC.Inventors: Christopher R. Knutson, Sridevi Kurella, Derek D. Doorneweerd, Christopher F. Grant, Timothy R. Kline
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Publication number: 20120202225Abstract: Methods and devices for evaluating a sample from a subject for detecting a target red blood cell protein or antibody are disclosed. In one embodiment, optimized antibody screening methods and devices significantly reduce the level of non-specific binding to a surface (e.g., a test surface bound with a red blood cell preparation), thus allowing for more efficient detection and reduced test time. In other embodiments, the invention provides methods and devices for target capturing that include a substantially planar surface, optionally having an optimized angle, for capture. Alternative solid phase geometries for capture are disclosed. Optimized methods for cell deposition are also disclosed. Thus, optimized methods, devices, kits, assays for evaluating a sample are disclosed.Type: ApplicationFiled: February 1, 2012Publication date: August 9, 2012Applicant: ARRYX, INC.Inventors: Christopher R. Knutson, Christopher F. Grant, Timothy R. Kline, Derek D. Doorneweerd, Sridevi Kurella, Daniel M. Mueth, Matthew K. Runyon, Haojun Fu, Sergio O. Guevara
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Publication number: 20090226880Abstract: The present invention provides novel methods of cell staining, such as bovine sperm, using electroporation or osmolality treatments at viability-enhancing temperatures. Furthermore, methods of highly efficient cell sorting that are especially suitable in sorting bovine sperm using novel cell staining procedures are also provided.Type: ApplicationFiled: February 11, 2009Publication date: September 10, 2009Applicant: Arryx, Inc.Inventors: Amy L. Anderson, Christopher R. Knutson, Daniel Mueth, Joseph Plewa, Evan Tanner
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Publication number: 20080144037Abstract: Apparatus for sorting and orienting sperm cells has a pair or walls in confronting relationship forming a flow chamber having inlet, a downstream outlet, and intermediate detector region. The inlet receives first and second spaced apart streams of input fluid and a third stream of sample fluid containing the cells to be sorted. The first and second streams have respective flow rates relative to third stream, such that the third stream is constricted forming a relatively narrow sample stream, so that the cells are oriented parallel to the walls. A detector detects desired cells and a sorter downstream of the detector for sorting the desired cells from the stream.Type: ApplicationFiled: February 14, 2008Publication date: June 19, 2008Applicant: ARRYX, INC.Inventors: Daniel Mueth, Amy L. Anderson, Christopher R. Knutson, Joseph Plewa
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Patent number: 7355696Abstract: Apparatus for sorting and orienting sperm cells has a pair or walls in confronting relationship forming a flow chamber having inlet, a downstream outlet, and intermediate detector region. The inlet receives first and second spaced apart streams of input fluid and a third stream of sample fluid containing the cells to be sorted. The first and second streams have respective flow rates relative to third stream, such that the third stream is constricted forming a relatively narrow sample stream, so that the cells are oriented parallel to the walls. A detector detect desired cells and a sorter downstream of the detector for sorting the desired cells from the stream.Type: GrantFiled: February 1, 2005Date of Patent: April 8, 2008Assignee: Arryx, IncInventors: Daniel Mueth, Amy L. Anderson, Christopher R. Knutson, Joseph Plewa
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Patent number: RE46992Abstract: Apparatus for sorting and orienting sperm cells has a pair or walls in confronting relationship forming a flow chamber having inlet, a downstream outlet, and intermediate detector region. The inlet receives first and second spaced apart streams of input fluid and a third stream of sample fluid containing the cells to be sorted. The first and second streams have respective flow rates relative to third stream, such that the third stream is constricted forming a relatively narrow sample stream, so that the cells are oriented parallel to the walls. A detector detects desired cells and a sorter downstream of the detector for sorting the desired cells from the stream.Type: GrantFiled: October 3, 2016Date of Patent: August 14, 2018Assignee: PREMIUM GENETICS (UK) LTDInventors: Daniel Mueth, Amy L. Morjal, Christopher R. Knutson, Joseph Plewa