Patents by Inventor Kedar Chitale
Kedar Chitale 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: 20170267991Abstract: Acoustophoretic devices for separating particles from a non-flowing host fluid are disclosed. The devices include a substantially acoustically transparent container and a separation unit, with the container being placed within the separation unit. An ultrasonic transducer in the separation unit creates a planar or multi-dimensional acoustic standing wave within the container, trapping particles disposed within the non-flowing fluid and causing them to coalesce or agglomerate, then separate due to buoyancy or gravity forces.Type: ApplicationFiled: May 5, 2017Publication date: September 21, 2017Inventors: Bart Lipkens, Walter M. Presz, JR., Kedar Chitale, Daniel Hatten, Nathaniel Bodnar, Goutam Ghoshal
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Publication number: 20170260493Abstract: Methods, systems, and apparatus for acoustic separation of cellular supporting materials such as microcarriers or microbubbles from cell culture are provided.Type: ApplicationFiled: May 26, 2017Publication date: September 14, 2017Inventors: Bart Lipkens, Rudolf Gilmanshin, Ben Ross-Johnsrud, Kedar Chitale
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Patent number: 9752113Abstract: Acoustic perfusion devices for separating biological cells from other material in a fluid mixture are disclosed. The devices include an inlet port, an outlet port, and a collection port that are connected to an acoustic chamber. An ultrasonic transducer creates an acoustic standing wave in the acoustic chamber that permits a continuous flow of fluid to be recovered through the collection port while keeping the biological cells within the acoustic chamber to be returned to the bioreactor from which the fluid mixture is being drawn.Type: GrantFiled: April 26, 2016Date of Patent: September 5, 2017Assignee: FloDesign Sonics, Inc.Inventors: Bart Lipkens, Erik Miller, Benjamin Ross-Johnsrud, Walter M. Presz, Jr., Kedar Chitale, Thomas J. Kennedy, III, Lauren Winiarski
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Patent number: 9744483Abstract: Devices for separating a host fluid from a second fluid or particulate are disclosed. The devices include an acoustic chamber, a fluid outlet at a top end of the acoustic chamber, a concentrate outlet at a bottom end of the acoustic chamber, and an inlet on a first side end of the acoustic chamber. An ultrasonic transducer and reflector create a multi-dimensional acoustic standing wave in the acoustic chamber that traps and separates particulates (e.g. cells) from a host fluid. The host fluid is collected via the fluid outlet, and the particulates are collected via the concentrate outlet. The device is a large-scale device that is able to process liters/hour, and has a large interior volume.Type: GrantFiled: August 26, 2016Date of Patent: August 29, 2017Assignee: FloDesign Sonics, Inc.Inventors: Bart Lipkens, Walter M. Presz, Jr., Jeffrey King, Jason Barnes, Dane Mealey, Brian McCarthy, Ben Ross-Johnsrud, Kedar Chitale
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Patent number: 9738866Abstract: Acoustic perfusion devices for separating biological cells from other material in a fluid mixture are disclosed. The devices include an inlet port, an outlet port, and a collection port that are connected to an acoustic chamber. An ultrasonic transducer creates an acoustic standing wave in the acoustic chamber that permits a continuous flow of fluid to be recovered through the collection port while keeping the biological cells within the acoustic chamber to be returned to the bioreactor from which the fluid mixture is being drawn.Type: GrantFiled: April 26, 2016Date of Patent: August 22, 2017Assignee: FloDesign Sonics, Inc.Inventors: Bart Lipkens, Erik Miller, Benjamin Ross-Johnsrud, Walter M. Presz, Jr., Kedar Chitale, Thomas J. Kennedy, III, Lauren Winiarski
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Publication number: 20170217794Abstract: Separation of particles or droplets from a host fluid may be achieved using a transducer and/or reflector that is a thin, non-planar structure. The thin non-planar structure improves operation of an acoustic standing wave generated by an acoustic transducer. The structure may operate as a pressure release boundary and may be constructed as plastic film.Type: ApplicationFiled: April 18, 2017Publication date: August 3, 2017Inventors: Bart Lipkens, Walter M. Presz, JR., Kedar Chitale, Brian McCarthy, Benjamin Ross-Johnsrud, Thomas J. Kennedy, III, Dane Mealey, Brian Dutra, David Sokolowski
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Publication number: 20170166860Abstract: Methods for generating particulate clusters and nodal trapping lines having desired widths are disclosed. The devices include an acoustic chamber having an inlet and an outlet. An ultrasonic transducer and reflector create a multi-dimensional acoustic standing wave that generates particulate clusters separated by a channel of fluid running therebetween and creates nodal trapping lines. The frequency of the multi-dimensional acoustic standing wave can be selectively tuned so as to selectively control at least one of (a) a width of each particulate cluster, or (b) a width of each channel of fluid. The frequency of the multi-dimensional acoustic standing wave can also be selectively tuned so as to selectively control the width of each nodal trapping line. Also disclosed are particulate clusters separated by a channel of fluid, wherein a ratio of the widths of the particulate clusters and the channel of fluid can be varied as desired.Type: ApplicationFiled: January 3, 2017Publication date: June 15, 2017Inventors: Walter M. Presz, JR., Kedar Chitale, Bart Lipkens
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Patent number: 9670477Abstract: Devices for separating materials from a host fluid are disclosed. The devices include a flow chamber, an ultrasonic transducer, and a reflector. The ultrasonic transducer and reflector create an angled acoustic standing wave oriented at an angle relative to the direction of mean flow through the flow chamber. The angled acoustic standing wave results in an acoustic radiation force having an axial force component that deflects the materials, so that the materials and the host fluid can thus be separated. The angled acoustic standing wave can be oriented at an angle of about 20° to about 70° relative to the direction of mean flow through the flow chamber to deflect, collect, differentiate, or fractionate the materials from the fluid flowing through the device at flow rates of about 400 mL/min up to about 700 mL/min.Type: GrantFiled: April 29, 2016Date of Patent: June 6, 2017Assignee: FloDesign Sonics, Inc.Inventors: Bart Lipkens, Walter M. Presz, Kedar Chitale, Thomas J. Kennedy, III, Ben Ross-Johnsrud
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Patent number: 9663756Abstract: Methods, systems, and apparatus for acoustic separation of cellular supporting materials such as microcarriers or microbubbles from cell culture are provided.Type: GrantFiled: February 25, 2016Date of Patent: May 30, 2017Assignee: FloDesign Sonics, Inc.Inventors: Bart Lipkens, Rudolf Gilmanshin, Ben Ross-Johnsrud, Kedar Chitale
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Publication number: 20170008029Abstract: An acoustophoretic device is disclosed. The acoustophoretic device includes an acoustic chamber, an ultrasonic transducer, and a reflector. The ultrasonic transducer includes a piezoelectric material driven by a voltage signal to create a multi-dimensional acoustic standing wave in the acoustic chamber emanating from a non-planar face of the piezoelectric material. A method for separating a second fluid or a particulate from a host fluid is also disclosed. The method includes flowing the mixture through an acoustophoretic device. A voltage signal is sent to drive the ultrasonic transducer to create the multi-dimensional acoustic standing wave in the acoustic chamber such that the second fluid or particulate is continuously trapped in the standing wave, and then agglomerates, aggregates, clumps, or coalesces together, and subsequently rises or settles out of the host fluid due to buoyancy or gravity forces, and exits the acoustic chamber.Type: ApplicationFiled: July 9, 2016Publication date: January 12, 2017Inventors: Bart Lipkens, Walter M Presz, JR., Kedar Chitale, Thomas J Kennedy, III, Rudolf Gilmanshin, Dane Mealey, Brian Dutra, David Sokolowski
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Patent number: 9533241Abstract: Devices for separating materials from a host fluid are disclosed. The devices include an acoustic chamber having an inlet and an outlet. An ultrasonic transducer and reflector create a multi-dimensional acoustic standing wave in the acoustic chamber that traps the materials and permits a continuous separation of the materials from the host fluid. The materials and the host fluid can thus be separately collected. Multiple sets of trapping lines are generated by the acoustic standing wave, and the transducer is oriented to minimize cross-sectional area for straight vertical channels between the trapping lines.Type: GrantFiled: March 24, 2016Date of Patent: January 3, 2017Assignee: FloDesign Sonics, Inc.Inventors: Walter M. Presz, Jr., Kedar Chitale, Bart Lipkens
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Publication number: 20160361670Abstract: Devices for separating a host fluid from a second fluid or particulate are disclosed. The devices include an acoustic chamber, a fluid outlet at a top end of the acoustic chamber, a concentrate outlet at a bottom end of the acoustic chamber, and an inlet on a first side end of the acoustic chamber. An ultrasonic transducer and reflector create a multi-dimensional acoustic standing wave in the acoustic chamber that traps and separates particulates (e.g. cells) from a host fluid. The host fluid is collected via the fluid outlet, and the particulates are collected via the concentrate outlet. The device is a large-scale device that is able to process liters/hour, and has a large interior volume.Type: ApplicationFiled: August 26, 2016Publication date: December 15, 2016Inventors: Bart Lipkens, Walter M. Presz, JR., Jeffrey King, Jason Barnes, Dane Mealey, Brian McCarthy, Ben Ross-Johnsrud, Kedar Chitale
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Publication number: 20160319270Abstract: Devices for separating materials from a host fluid are disclosed. The devices include a flow chamber, an ultrasonic transducer, and a reflector. The ultrasonic transducer and reflector create an angled acoustic standing wave oriented at an angle relative to the direction of mean flow through the flow chamber. The angled acoustic standing wave results in an acoustic radiation force having an axial force component that deflects the materials, so that the materials and the host fluid can thus be separated. The angled acoustic standing wave can be oriented at an angle of about 20° to about 70° relative to the direction of mean flow through the flow chamber to deflect, collect, differentiate, or fractionate the materials from the fluid flowing through the device at flow rates of about 400 mL/min up to about 700 mL/min.Type: ApplicationFiled: April 29, 2016Publication date: November 3, 2016Inventors: Bart Lipkens, Walter M. Presz, JR., Kedar Chitale, Thomas J. Kennedy, III
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Publication number: 20160279540Abstract: Devices for separating materials from a host fluid are disclosed. The devices include an acoustic chamber having an inlet and an outlet. An ultrasonic transducer and reflector create a multi-dimensional acoustic standing wave in the acoustic chamber that traps the materials and permits a continuous separation of the materials from the host fluid. The materials and the host fluid can thus be separately collected. Multiple sets of trapping lines are generated by the acoustic standing wave, and the transducer is oriented to minimize cross-sectional area for straight vertical channels between the trapping lines.Type: ApplicationFiled: March 24, 2016Publication date: September 29, 2016Inventors: Walter M. Presz, JR., Kedar Chitale, Bart Lipkens
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Publication number: 20160237394Abstract: Acoustic perfusion devices for separating biological cells from other material in a fluid mixture are disclosed. The devices include an inlet port, an outlet port, and a collection port that are connected to an acoustic chamber. An ultrasonic transducer creates an acoustic standing wave in the acoustic chamber that permits a continuous flow of fluid to be recovered through the collection port while keeping the biological cells within the acoustic chamber to be returned to the bioreactor from which the fluid mixture is being drawn.Type: ApplicationFiled: April 26, 2016Publication date: August 18, 2016Inventors: Bart Lipkens, Erik Miller, Benjamin Ross-Johnsrud, Walter M. Presz, JR., Kedar Chitale, Thomas J. Kennedy, III
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Publication number: 20160237395Abstract: Acoustic perfusion devices for separating biological cells from other material in a fluid mixture are disclosed. The devices include an inlet port, an outlet port, and a collection port that are connected to an acoustic chamber. An ultrasonic transducer creates an acoustic standing wave in the acoustic chamber that permits a continuous flow of fluid to be recovered through the collection port while keeping the biological cells within the acoustic chamber to be returned to the bioreactor from which the fluid mixture is being drawn.Type: ApplicationFiled: April 26, 2016Publication date: August 18, 2016Inventors: Bart Lipkens, Erik Miller, Benjamin Ross-Johnsrud, Walter M. Presz, JR., Kedar Chitale, Thomas J. Kennedy, III
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Publication number: 20160102284Abstract: Acoustic perfusion devices for separating biological cells from other material in a fluid medium are disclosed. The devices include an inlet port, an outlet port, and a collection port that are connected to an acoustic chamber. An ultrasonic transducer creates an acoustic standing wave in the acoustic chamber that permits a continuous flow of fluid to be recovered through the collection port while keeping the biological cells within the acoustic chamber to be returned to the bioreactor from which the fluid medium is being drawn.Type: ApplicationFiled: December 18, 2015Publication date: April 14, 2016Inventors: Bart Lipkens, Erik Miller, Benjamin Ross-Johnsrud, Walter M. Presz, JR., Kedar Chitale, Thomas J. Kennedy, III
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Publication number: 20160002070Abstract: An acoustophoresis device which includes a substantially vertical flow path of the fluid mixture in order to improve separation of particles/secondary fluid from a primary fluid is disclosed. The vertical flow path reduces velocity non-uniformities in the acoustic chamber resulting from gravity forces. The device includes an acoustic chamber in which multidimensional acoustic standing waves are generated. The fluid can be introduced into the acoustic chamber using a dump diffuser in which a plurality of inlets enter near the bottom of the acoustic chamber such that flow symmetry reduces both, gravity driven flow non-uniformities, and any flow interference effects between inlet mixture flow into the acoustic chamber and the continuous gravity driven particle cluster drop out.Type: ApplicationFiled: July 2, 2015Publication date: January 7, 2016Inventors: Bart Lipkens, Brian McCarthy, Jason Barnes, Dane Mealey, Ben Ross-Johnsrud, Walter M. Presz, JR., Kedar Chitale
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Patent number: D787630Type: GrantFiled: October 6, 2015Date of Patent: May 23, 2017Assignee: FLODESIGN SONICS, INC.Inventors: Bart Lipkens, Jason Barnes, Dane Mealey, Walter M. Presz, Jr., Brian McCarthy, Benjamin Ross-Johnsrud, Kedar Chitale
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Patent number: D797887Type: GrantFiled: April 26, 2016Date of Patent: September 19, 2017Assignee: FloDesign Sonics, Inc.Inventors: Bart Lipkens, Walter M. Presz, Jr., Jason Barnes, Dane Mealey, Jeffrey King, Brian McCarthy, Jack Saloio, Kedar Chitale, Benjamin Ross-Johnsrud