Patents by Inventor John Clemmens
John Clemmens 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: 10107797Abstract: Microfluidic cartridges for agglutination reactions are provided. The cartridges include a microfluidic reaction channel with at least two intake channels, one for an antigen-containing fluid and the other for an antibody-containing fluid, conjoined to a reaction channel modified by incorporation of a downstream flow control channel. At low Reynolds Number, the two input streams layer one on top of the other in the reaction channel and form a flowing, unmixed horizontally-stratified laminar fluid diffusion (HLFD) interface for an extended duration of reaction. Surprisingly, the design, surface properties, and flow regime of microfluidic circuits of the present invention potentiate detection of antibody mediated agglutination at the stratified interface. Antigen:antibody reactions involving agglutination potentiated by these devices are useful in blood typing, in crossmatching for blood transfusion, and in immunodiagnostic agglutination assays, for example.Type: GrantFiled: August 19, 2015Date of Patent: October 23, 2018Assignee: Micronics, Inc.Inventors: C. Frederick Battrell, Diane Wierzbicki, John Clemmens, Jason Capodanno, John R. Williford, Carolina Elmufdi, Isaac Sprague
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Patent number: 9468894Abstract: Disclosed herein is a device comprising a pair of bellows pumps configured for efficient mixing at a microfluidic scale. By moving a fluid sample and particles in suspension through an aperture between the paired bellows pump mixing chambers, molecular collisions leading to binding between the particles and ligands in the sample are enhanced. Such devices provide an alternative for mixing that does not use a vent and can be used with a variety of particles in suspension such as magnetic beads to capture or purify useful cells and molecules.Type: GrantFiled: May 2, 2011Date of Patent: October 18, 2016Assignee: Micronics, Inc.Inventors: John Clemmens, C. Frederick Battrell, John Gerdes, Denise Maxine Hoekstra
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Publication number: 20160209431Abstract: Microfluidic cartridges for agglutination reactions are provided. The cartridges include a microfluidic reaction channel with at least two intake channels, one for an antigen-containing fluid and the other for an antibody-containing fluid, conjoined to a reaction channel modified by incorporation of a downstream flow control channel. At low Reynolds Number, the two input streams layer one on top of the other in the reaction channel and form a flowing, unmixed horizontally-stratified laminar fluid diffusion (HLFD) interface for an extended duration of reaction. Surprisingly, the design, surface properties, and flow regime of microfluidic circuits of the present invention potentiate detection of antibody mediated agglutination at the stratified interface. Antigen:antibody reactions involving agglutination potentiated by these devices are useful in blood typing, in crossmatching for blood transfusion, and in immunodiagnostic agglutination assays, for example.Type: ApplicationFiled: August 19, 2015Publication date: July 21, 2016Inventors: C. Frederick Battrell, Diane Wierzbicki, John Clemmens, Jason Capodanno, John R. Williford, Carolina Elmufdi, Isaac Sprague
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Patent number: 9146246Abstract: Microfluidic cartridges for agglutination reactions are provided. The cartridges include a microfluidic reaction channel with at least two intake channels, one for an antigen-containing fluid and the other for an antibody-containing fluid, conjoined to a reaction channel modified by incorporation of a downstream flow control channel. At low Reynolds Number, the two input streams layer one on top of the other in the reaction channel and form a flowing, unmixed horizontally-stratified laminar fluid diffusion (HLFD) interface for an extended duration of reaction. Surprisingly, the design, surface properties, and flow regime of microfluidic circuits of the present invention potentiate detection of antibody mediated agglutination at the stratified interface. Antigen:antibody reactions involving agglutination potentiated by these devices are useful in blood typing, in crossmatching for blood transfusion, and in immunodiagnostic agglutination assays, for example.Type: GrantFiled: October 25, 2012Date of Patent: September 29, 2015Assignee: Micronics, Inc.Inventors: C. Frederick Battrell, Diane Wierzbicki, John Clemmens, Jason Capodanno, John R. Williford, Carolina Elmufdi, Isaac Sprague
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Patent number: 9056291Abstract: A compact device for operatively coupling a solid planar substrate, for example a glass slide, to a microfluidic circuit and performing a reaction or reactions on organic matter bound to the face of the planar substrate. Typical reactions include binding, staining and/or labeling reactions. In use, a sealed reaction chamber is formed, the chamber enclosing the organic matter and at least a part of the solid substrate. Headspace in the sealed chamber between the solid substrate is generally of microfluidic dimensions, and diaphragm pump members are used to inject, exchange and/or mix the fluids in the chamber.Type: GrantFiled: January 9, 2012Date of Patent: June 16, 2015Assignee: Micronics, Inc.Inventors: C. Frederick Battrell, John Clemmens, Isaac Sprague
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Publication number: 20150158026Abstract: Microfluidic methods and devices for heterogeneous binding and agglutination assays are disclosed, with improvements relating to mixing and to reagent and sample manipulation in systems designed for safe handling of clinical test samples.Type: ApplicationFiled: January 30, 2015Publication date: June 11, 2015Inventors: C. Frederick Battrell, John Gerdes, Stephen Mordue, Jason Capodanno, Denise Maxine Hoekstra, John R. Williford, John Clemmens
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Patent number: 8772017Abstract: Integrated microfluidic cartridges for nucleic acid extraction, amplification, and detection from clinical samples are disclosed. The devices are single-entry, sanitary, and disposable. The devices enable simplex or multiplex nucleic acid target detection, as for example: assay panels for multiple infectious agents, or assay panels for cancerous cell types. Methods for use of microfluidic cartridges in a fully automated, pneumatically controlled apparatus are also disclosed.Type: GrantFiled: June 8, 2012Date of Patent: July 8, 2014Assignee: Micronics, Inc.Inventors: C. Frederick Battrell, John Gerdes, John R. Williford, Denise Maxine Hoekstra, Wayne L. Breidford, Stephen Mordue, John Clemmens, Melud Nabavi, Mark Kokoris
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Publication number: 20120329142Abstract: Integrated microfluidic cartridges for nucleic acid extraction, amplification, and detection from clinical samples are disclosed. The devices are single-entry, sanitary, and disposable. The devices enable simplex or multiplex nucleic acid target detection, as for example: assay panels for multiple infectious agents, or assay panels for cancerous cell types. Methods for use of microfluidic cartridges in a fully automated, pneumatically controlled apparatus are also disclosed.Type: ApplicationFiled: June 8, 2012Publication date: December 27, 2012Applicant: MICRONICS, INC.Inventors: C. Frederick BATTRELL, John GERDES, John R. WILLIFORD, Denise Maxine HOEKSTRA, Wayne L. BREIDFORD, Stephen MORDUE, John CLEMMENS, Melud NABAVI, Mark KOKORIS
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Patent number: 8318439Abstract: Microfluidic cartridges for agglutination reactions are provided. The cartridges include a microfluidic reaction channel with at least two intake channels, one for an antigen-containing fluid and the other for an antibody-containing fluid, conjoined to a reaction channel modified by incorporation of a downstream flow control channel. At low Reynolds Number, the two input streams layer one on top of the other in the reaction channel and form a flowing, unmixed horizontally-stratified laminar fluid diffusion (HLFD) interface for an extended duration of reaction. Surprisingly, the design, surface properties, and flow regime of microfluidic circuits of the present invention potentiate detection of antibody mediated agglutination at the stratified interface. Antigen:antibody reactions involving agglutination potentiated by these devices are useful in blood typing, in crossmatching for blood transfusion, and in immunodiagnostic agglutination assays, for example.Type: GrantFiled: October 2, 2009Date of Patent: November 27, 2012Assignee: Micronics, Inc.Inventors: C. Frederick Battrell, Diane Wierzbicki, John Clemmens, Jason Capodanno, John R. Williford, Carolina Elmufdi, Isaac Sprague
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Publication number: 20120271127Abstract: Biohazard specimen collection containers are provided with an external disposable skin, that is stripped away and discarded after the biohazardous specimen is collected, thus reducing or eliminating objectionable or dangerous residues on the outside surfaces of the container. Further, we teach that the sample collection container with external disposable skin may also serve as an integrated microfluidic biosample processing and analytical device, thereby providing a single entry, disposable assay unit, kit and system for “world-to-result” clinical diagnostic testing. These integrated assay devices are provided with synergic, multiple safe-handling features for protecting healthcare workers who handle them. The modified collection containers and analytical devices find application, for example, in PCR detection of infectious organisms or pathogenic markers collected on a swab.Type: ApplicationFiled: June 7, 2012Publication date: October 25, 2012Applicant: Micronics, Inc.Inventors: C. Frederick Battrell, Jason Capodanno, John Clemmens, Joan Haab, John Gerdes
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Patent number: 8222023Abstract: Integrated microfluidic cartridges for nucleic acid extraction, amplification, and detection from clinical samples are disclosed. The devices are single-entry, sanitary, and disposable. The devices enable simplex or multiplex nucleic acid target detection, as for example: assay panels for multiple infectious agents, or assay panels for cancerous cell types. Methods for use of microfluidic cartridges in a fully automated, pneumatically controlled apparatus are also disclosed.Type: GrantFiled: September 10, 2008Date of Patent: July 17, 2012Assignee: Micronics, Inc.Inventors: C. Frederick Battrell, John Gerdes, John R. Williford, Denise Maxine Hoekstra, Wayne L. Breidford, Stephen Mordue, John Clemmens, Melud Nabavi, Mark Kokoris
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Publication number: 20120177543Abstract: A compact device for operatively coupling a solid planar substrate, for example a glass slide, to a microfluidic circuit and performing a reaction or reactions on organic matter bound to the face of the planar substrate. Typical reactions include binding, staining and/or labeling reactions. In use, a sealed reaction chamber is formed, the chamber enclosing the organic matter and at least a part of the solid substrate. Headspace in the sealed chamber between the solid substrate is generally of microfluidic dimensions, and diaphragm pump members are used to inject, exchange and/or mix the fluids in the chamber.Type: ApplicationFiled: January 9, 2012Publication date: July 12, 2012Applicant: Micronics, Inc.Inventors: C. Frederick Battrell, John Clemmens, Isaac Sprague
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Patent number: 8216832Abstract: Biohazard specimen collection containers are provided with an external disposable skin, that is stripped away and discarded after the biohazardous specimen is collected, thus reducing or eliminating objectionable or dangerous residues on the outside surfaces of the container. Further, we teach that the sample collection container with external disposable skin may also serve as an integrated microfluidic biosample processing and analytical device, thereby providing a single entry, disposable assay unit, kit and system for “world-to-result” clinical diagnostic testing. These integrated assay devices are provided with synergic, multiple safe-handling features for protecting healthcare workers who handle them. The modified collection containers and analytical devices find application, for example, in PCR detection of infectious organisms or pathogenic markers collected on a swab.Type: GrantFiled: January 28, 2010Date of Patent: July 10, 2012Assignee: Micronics, Inc.Inventors: C. Frederick Battrell, Jason Capodanno, John Clemmens, Joan Haab, John Gerdes
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Publication number: 20120164627Abstract: Microfluidic methods and devices for heterogeneous binding and agglutination assays are disclosed, with improvements relating to mixing and to reagent and sample manipulation in systems designed for safe handling of clinical test samples.Type: ApplicationFiled: January 3, 2012Publication date: June 28, 2012Applicant: Micronics, Inc.Inventors: C. Frederick Battrell, John Gerdes, Stephen Mordue, Jason Capodanno, Denise Maxine Hoekstra, John R. Williford, John Clemmens
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Publication number: 20120064597Abstract: Disclosed herein is a device comprising a pair of bellows pumps configured for efficient mixing at a microfluidic scale. By moving a fluid sample and particles in suspension through an aperture between the paired bellows pump mixing chambers, molecular collisions leading to binding between the particles and ligands in the sample are enhanced. Such devices provide an alternative for mixing that does not use a vent and can be used with a variety of particles in suspension such as magnetic beads to capture or purify useful cells and molecules.Type: ApplicationFiled: May 2, 2011Publication date: March 15, 2012Applicant: Micronics, Inc.Inventors: John Clemmens, C. Frederick Battrell, John Gerdes, Denise Maxine Hoekstra
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Patent number: 8110392Abstract: Microfluidic methods and devices for heterogeneous binding and agglutination assays are disclosed, with improvements relating to mixing and to reagent and sample manipulation in systems designed for safe handling of clinical test samples.Type: GrantFiled: December 22, 2008Date of Patent: February 7, 2012Assignee: Micronics, Inc.Inventors: C Frederick Battrell, John Gerdes, Stephen Mordue, Jason Capodanno, Denise Maxine Hoekstra, John R Williford, John Clemmens
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Patent number: 7955836Abstract: Disclosed herein is a device comprising a pair of bellows pumps configured for efficient mixing at a microfluidic scale. By moving a fluid sample and particles in suspension through an aperture between the paired bellows pump mixing chambers, molecular collisions leading to binding between the particles and ligands in the sample are enhanced. Such devices provide an alternative for mixing that does not use a vent and can be used with a variety of particles in suspension such as magnetic beads to capture or purify useful cells and molecules.Type: GrantFiled: January 11, 2010Date of Patent: June 7, 2011Assignee: Micronics, Inc.Inventors: John Clemmens, C. Frederick Battrell, John Gerdes, Denise Maxine Hoekstra
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Publication number: 20100274155Abstract: Biohazard specimen collection containers are provided with an external disposable skin, that is stripped away and discarded after the biohazardous specimen is collected, thus reducing or eliminating objectionable or dangerous residues on the outside surfaces of the container. Further, we teach that the sample collection container with external disposable skin may also serve as an integrated microfluidic biosample processing and analytical device, thereby providing a single entry, disposable assay unit, kit and system for “world-to-result” clinical diagnostic testing. These integrated assay devices are provided with synergic, multiple safe-handling features for protecting healthcare workers who handle them. The modified collection containers and analytical devices find application, for example, in PCR detection of infectious organisms or pathogenic markers collected on a swab.Type: ApplicationFiled: January 28, 2010Publication date: October 28, 2010Applicant: Micronics, Inc.Inventors: C. Frederick Battrell, Jason Capodanno, John Clemmens, Joan Haab, John Gerdes
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Patent number: 7763453Abstract: Disclosed herein is a device comprising a pair of bellows pumps configured for efficient mixing at a microfluidic scale. By moving a fluid sample and particles in suspension through an aperture between the paired bellows pump mixing chambers, molecular collisions leading to binding between the particles and ligands in the sample are enhanced. Such devices provide an alternative for mixing that does not use a vent and can be used with a variety of particles in suspension such as magnetic beads to capture or purify useful cells and molecules.Type: GrantFiled: November 22, 2006Date of Patent: July 27, 2010Assignee: Micronics, Inc.Inventors: John Clemmens, C. Frederick Battrell, John Gerdes, Denise Maxine Hoekstra
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Publication number: 20100167384Abstract: Disclosed herein is a device comprising a pair of bellows pumps configured for efficient mixing at a microfluidic scale. By moving a fluid sample and particles in suspension through an aperture between the paired bellows pump mixing chambers, molecular collisions leading to binding between the particles and ligands in the sample are enhanced. Such devices provide an alternative for mixing that does not use a vent and can be used with a variety of particles in suspension such as magnetic beads to capture or purify useful cells and molecules.Type: ApplicationFiled: January 11, 2010Publication date: July 1, 2010Applicant: Micronics, Inc,Inventors: John Clemmens, C. Frederick Battrell, John Gerdes, Denise Maxine Hoekstra