Patents by Inventor Joshua T. Smith
Joshua T. Smith 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: 12194465Abstract: Techniques regarding one or more structures that can facilitate automated, multi-stage processing of one or more nanofluidic chips are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a roller positioned adjacent to a microfluidic card comprising a plurality of fluid reservoirs in fluid communication with a plurality of nanofluidic chips. An arrangement of the plurality of nanofluidic chips on the microfluidic card can defines a processing sequence driven by a translocation of the roller across the microfluidic card.Type: GrantFiled: December 6, 2022Date of Patent: January 14, 2025Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Benjamin Wunsch, Joshua T. Smith, Stacey Gifford, Sung-Cheol Kim
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Patent number: 12129515Abstract: Techniques regarding screening for mutations using nanoscale deterministic arrays are provided. For example, one or more embodiments described herein can comprise a method, which can comprise cleaving a deoxyribonucleic acid segment hybridized with a molecular probe to form a sample fluid. The cleaving can occur at a first end and a second end of the molecular probe. Also, the cleaving can comprise a cleaving agent that targets base pair mismatches. The method can also comprise supplying the sample fluid to a nanoscale deterministic lateral displacement array to screen for a single nucleotide polymorphism.Type: GrantFiled: October 14, 2021Date of Patent: October 29, 2024Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Stacey Gifford, Benjamin Wunsch, Joshua T. Smith, Sung-Cheol Kim
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Publication number: 20240260682Abstract: An article of attire for enhanced communication includes an article of attire and a communication device. The article has an upper portion, an outer surface, an inner surface, and an interior cavity bounded by the outer surface and the inner surface. The communication device has at least one speaker, at least one microphone, at least one power source, at least one processor, at least one transmitter, and at least one receiver. The at least one speaker and the at least one microphone are positioned adjacent to or on the outer surface of the upper portion. The communication device is coupled to the article. The communication device is configured to receive one or more wireless first inputs from the at least one receiver and deliver the first inputs to the at least one speaker via the at least one processor.Type: ApplicationFiled: February 1, 2024Publication date: August 8, 2024Inventors: Fernando D. Goncalves, Melissa A. Schmitz, Joshua T. Smith
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Patent number: 12042770Abstract: An exemplary method includes forming a sacrificial layer along sidewalls of an array of trenches that are indented into a substrate, depositing a fill layer over the sacrificial layer, and then creating an array of gaps between the fill layer and the substrate by removing the sacrificial layer along the sidewalls of the trenches, while maintaining a structural connection between the substrate and the fill layer at the floors of the trenches. The method further includes covering the substrate, the fill layer, and the gaps with a cap layer that seal fluid-tight against the substrate and the fill layer. The method further includes indenting a first reservoir and a second reservoir through the cap layer, and into the substrate and the fill layer, across the lengths of the array of gaps, so that the array of gaps connects the first reservoir in fluid communication with the second reservoir.Type: GrantFiled: November 7, 2021Date of Patent: July 23, 2024Assignee: International Business Machines CorporationInventors: Joshua T. Smith, Stacey Gifford, Sung-Cheol Kim, Benjamin Wunsch
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Patent number: 12011715Abstract: A method of forming a microfluidic device is disclosed. The method includes forming a first dielectric layer on a substrate, forming electrodes partially into the first dielectric layer, and forming a second dielectric layer on the electrodes. The method includes filling, with a metal material, two wells formed in the second dielectric layer such that the metal material is in direct contact with the electrodes. The method includes forming a third dielectric layer on the metal material and second dielectric layer. The method includes filling, with a structural material, a channel formed between the wells such that the structural material does not directly contact the electrodes. The method includes forming a fourth dielectric layer on the third dielectric layer and the structural material, extracting the structural material through at least one vent hole in the fourth dielectric layer, and forming a fifth dielectric layer on the fourth dielectric layer.Type: GrantFiled: November 11, 2020Date of Patent: June 18, 2024Assignee: International Business Machines CorporationInventors: Joshua T. Smith, Benjamin Hardy Wunsch, Adele L. Pacquette, Eugene J. O'Sullivan
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Patent number: 12000536Abstract: A method of generating a pressurized, sub-cooled mixed-phase cryogen is disclosed, including providing a cryogenic system including a reservoir containing a liquid cryogen; and a heat exchange coil immersed in the liquid cryogen, the heat exchange coil having an input end and an output end not immersed in the liquid cryogen; introducing a pressurized gas cryogen to the input end of the heat exchange coil; cooling the pressurized gas cryogen within the heat exchange coil; and collecting the pressurized gas cryogen at an output end of the heat exchange coil.Type: GrantFiled: March 18, 2022Date of Patent: June 4, 2024Assignee: CPSI Holdings LLCInventors: John M. Baust, Joshua T. Smith, Anthony T. Robilotto, Jennie F. McKain
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Patent number: 11992837Abstract: A method for fabricating a fluidic device includes depositing a sacrificial material on a pillar array arranged on a substrate. The method also includes removing a portion of the sacrificial material. The method further includes depositing a sealing layer on the pillar array to form a sealed fluidic cavity.Type: GrantFiled: February 7, 2023Date of Patent: May 28, 2024Assignee: International Business Machines CorporationInventors: Evan Colgan, Joshua T. Smith, Benjamin Wunsch
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Patent number: 11911762Abstract: Techniques regarding integrated purification-detection devices for detecting one or more biomarkers are provided. For example, one or more embodiments described herein are directed to an apparatus, comprising a housing and a microfluidic chip contained within the housing. The microfluidic chip comprises a separation unit that separates, using one or more nano deterministic lateral displacement (nanoDLD) arrays, target biological entities having a defined size range from other biological entities included in a biological fluid sample. The microfluidic chip further comprises a detection unit that facilitates detecting presence of one or more biomarkers associated with the target biological entities using one or more detection molecules or macromolecules that chemically reacts with the one or more biomarkers.Type: GrantFiled: May 7, 2021Date of Patent: February 27, 2024Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Joshua T. Smith, Benjamin Wunsch, Stacey Gifford, Sung-Cheol Kim
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Publication number: 20240042437Abstract: Techniques regarding nanofluidic chips with a plurality of inlets and/or outlets in fluid communication with one or more nanoDLD arrays are provided. For example, one or more embodiments described herein can comprise a nanoscale deterministic lateral displacement array between and in fluid communication with a global inlet and a global outlet. The nanoscale deterministic lateral displacement array can further be between and in fluid communication with a local inlet and a local outlet. Also, the nanoscale deterministic lateral displacement array can laterally displace a particle comprised within a sample fluid supplied from the global inlet to a collection region that directs the particle to the local outlet. An advantage of such an apparatus can be the expanded versatility of the nanoscale deterministic lateral displacement array for sample preparation applications involving nanoparticles not accessible to other higher throughput microscale microfluidic technologies.Type: ApplicationFiled: October 17, 2023Publication date: February 8, 2024Inventors: Joshua T. Smith, Benjamin Wunsch, Stacey Gifford
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Patent number: 11872560Abstract: Microfluid chips that comprise one or more microscale and/or mesoscale condenser arrays, which can facilitate particle purification and/or fractionation, are described herein. In one embodiment, an apparatus can comprise a layer of a microfluidic chip. The layer can comprise an inlet that can receive fluid, an outlet that can output a purified version of the fluid, and a condenser array coupled between and in fluid communication with the inlet and the outlet. The condenser array can comprise a plurality of pillars arranged in a plurality of columns. Also, a pillar gap sized to facilitate a throughput rate of the fluid of greater than or equal to about 1.0 nanoliter per hour can be located between a first pillar of the plurality of pillars in a first column of the plurality of columns and a second pillar of the plurality of pillars in the first column.Type: GrantFiled: December 23, 2020Date of Patent: January 16, 2024Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Joshua T. Smith, Stacey M. Gifford, Sung-Cheol Kim, Benjamin H. Wunsch
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Patent number: 11833511Abstract: Techniques regarding nanofluidic chips with a plurality of inlets and/or outlets in fluid communication with one or more nanoDLD arrays are provided. For example, one or more embodiments described herein can comprise a nanoscale deterministic lateral displacement array between and in fluid communication with a global inlet and a global outlet. The nanoscale deterministic lateral displacement array can further be between and in fluid communication with a local inlet and a local outlet. Also, the nanoscale deterministic lateral displacement array can laterally displace a particle comprised within a sample fluid supplied from the global inlet to a collection region that directs the particle to the local outlet. An advantage of such an apparatus can be the expanded versatility of the nanoscale deterministic lateral displacement array for sample preparation applications involving nanoparticles not accessible to other higher throughput microscale microfluidic technologies.Type: GrantFiled: December 28, 2020Date of Patent: December 5, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Joshua T. Smith, Benjamin Wunsch, Stacey Gifford
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Publication number: 20230374405Abstract: Embodiments are related to a crate-based fire starter structure. The crate-based fire starter structure includes a crate housing having combustible material. Interior layers include an ignition material and at least one tier of kindling lattice, the at least one tier of kindling lattice being positioned laterally in the crate housing and being suspended over a base. At least one lock-in element is positioned at the top of the crate housing.Type: ApplicationFiled: May 23, 2022Publication date: November 23, 2023Inventor: Joshua T. Smith
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Patent number: 11754476Abstract: Microscale and/or mesoscale condenser arrays that can facilitate microfluidic separation and/or purification of mesoscale and/or nanoscale particles and methods of operation are described herein. An apparatus comprises a condenser array comprising pillars arranged in a plurality of columns, wherein a pillar gap greater than or equal to about 0.5 micrometers is located between a first pillar of the pillars in a first column of the columns and a second pillar of the plurality of pillars in the first column, and wherein the first pillar is adjacent to the second pillar. The first ratio can be characterized by Dx/Dy is less than or equal to a first defined value, wherein Dx represents a first distance across the lattice in a first direction, wherein Dy represents a second distance across the lattice in a second direction, and wherein the first direction is orthogonal to the second direction.Type: GrantFiled: December 5, 2022Date of Patent: September 12, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Benjamin H. Wunsch, Joshua T. Smith, Sung-Cheol Kim, Stacey M. Gifford
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Patent number: 11710005Abstract: A microfluidic device that reads a colloidal mixture and separates the colloids based upon size and shape. and in the case of polymer colloids such as DNA, it reads patterns of markers attached to DNA. The combination of different separated fractions and DNA markers (it mapping) constitutes the physical code.Type: GrantFiled: November 29, 2018Date of Patent: July 25, 2023Assignee: International Business Machines CorporationInventors: Dirk Pfeiffer, Joshua T Smith, Benjamin H Wunsch
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Publication number: 20230191398Abstract: A method for fabricating a fluidic device includes depositing a sacrificial material on a pillar array arranged on a substrate. The method also includes removing a portion of the sacrificial material. The method further includes depositing a sealing layer on the pillar array to form a sealed fluidic cavity.Type: ApplicationFiled: February 7, 2023Publication date: June 22, 2023Inventors: Evan Colgan, Joshua T. Smith, Benjamin Wunsch
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Patent number: 11648557Abstract: Techniques relate to forming a sorting device. A mesh is formed on top of a substrate. Metal assisted chemical etching is performed to remove substrate material of the substrate at locations of the mesh. Pillars are formed in the substrate by removal of the substrate material. The mesh is removed to leave the pillars in a nanopillar array. The pillars in the nanopillar array are designed with a spacing to sort particles of different sizes such that the particles at or above a predetermined dimension are sorted in a first direction and the particles below the predetermined dimension are sorted in a second direction.Type: GrantFiled: September 25, 2019Date of Patent: May 16, 2023Assignee: International Business Machines CorporationInventors: Huan Hu, Joshua T. Smith, Gustavo A. Stolovitzky, Benjamin H. Wunsch
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Patent number: 11651925Abstract: A technique relates to a semiconductor device. An emitter electrode and a collector electrode are formed in a dielectric layer such that a nanogap separates the emitter electrode and the collector electrode, a portion of the emitter electrode including layers. A channel is formed in the dielectric layer so as to traverse the nanogap. A top layer is formed over the channel so as to cover the channel and the nanogap without filling in the channel and the nanogap, thereby forming a vacuum channel transistor structure.Type: GrantFiled: January 12, 2021Date of Patent: May 16, 2023Assignee: International Business Machines CorporationInventors: Joshua T. Smith, Benjamin Wunsch
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Publication number: 20230107476Abstract: Techniques regarding one or more structures that can facilitate automated, multi-stage processing of one or more nanofluidic chips are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a roller positioned adjacent to a microfluidic card comprising a plurality of fluid reservoirs in fluid communication with a plurality of nanofluidic chips. An arrangement of the plurality of nanofluidic chips on the microfluidic card can defines a processing sequence driven by a translocation of the roller across the microfluidic card.Type: ApplicationFiled: December 6, 2022Publication date: April 6, 2023Inventors: Benjamin Wunsch, Joshua T. Smith, Stacey Gifford, Sung-Cheol Kim
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Publication number: 20230097357Abstract: Microscale and/or mesoscale condenser arrays that can facilitate microfluidic separation and/or purification of mesoscale and/or nanoscale particles and methods of operation are described herein. An apparatus comprises a condenser array comprising pillars arranged in a plurality of columns, wherein a pillar gap greater than or equal to about 0.5 micrometers is located between a first pillar of the pillars in a first column of the columns and a second pillar of the plurality of pillars in the first column, and wherein the first pillar is adjacent to the second pillar. The first ratio can be characterized by Dx/Dy is less than or equal to a first defined value, wherein Dx represents a first distance across the lattice in a first direction, wherein Dy represents a second distance across the lattice in a second direction, and wherein the first direction is orthogonal to the second direction.Type: ApplicationFiled: December 5, 2022Publication date: March 30, 2023Inventors: Benjamin H. Wunsch, Joshua T. Smith, Sung-Cheol Kim, Stacey M. Gifford
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Patent number: 11612889Abstract: A method for fabricating a fluidic device includes depositing a sacrificial material on a pillar array arranged on a substrate. The method also includes removing a portion of the sacrificial material. The method further includes depositing a sealing layer on the pillar array to form a sealed fluidic cavity.Type: GrantFiled: January 29, 2021Date of Patent: March 28, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Evan Colgan, Joshua T. Smith, Benjamin Wunsch