Patents by Inventor William Kwan
William Kwan 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: 12241899Abstract: Systems and methods for automated sample preparation and processing of protein corona are described herein, as well as its application in the discovery of advanced diagnostic tools as well as therapeutic agents.Type: GrantFiled: March 3, 2023Date of Patent: March 4, 2025Assignee: Seer, Inc.Inventors: William Manning, Young Kim, Brandon Kwan-Leong, Hope Liou, Xiaoyan Zhao, Daniel Hornburg, Martin Goldberg
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Patent number: 12231342Abstract: A network device includes ingress queues for storing data units while the data units are being processed by ingress packet processors, and a plurality of egress buffer memories for storing data units received from the ingress queues while the data units are being processed by the egress packet processors. First circuitry controls respective rates at which data units are transferred from ingress queues to egress buffer memories. Second circuitry monitors the egress buffer memories for congestion and sends, to the first circuitry, flow control messages related to congestion resulting of egress buffer memories. The first circuitry progressively increases over time a rate at which data from each ingress queue are transferred to an egress buffer memory in response to receiving a flow control message that indicates that congestion corresponding to the egress buffer memory has ended.Type: GrantFiled: March 3, 2023Date of Patent: February 18, 2025Assignee: Marvel Asia Pte LtdInventors: Bruce Kwan, William Brad Matthews
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Patent number: 11737366Abstract: A sensor apparatus includes a first of a plurality of layers having a top layer, a bottom layer, and at least one intermediate layer having an electrical conductor layer, each of the top layer, the bottom layer, and the at least one intermediate layer is disposed in direct contact with a respective adjacent layer. A second of the plurality of layers is disposed in direct contact with the first plurality of layers such that the bottom layer of the second plurality of layers is disposed in direct contact with the top layer of the first plurality of layers. The first and second plurality of layers are productive of a piezoelectric voltage absent of an external current producing device and in response to being deformed, and are productive of a change in capacitance in response to being deformed.Type: GrantFiled: February 23, 2018Date of Patent: August 22, 2023Assignee: ROGERS CORPORATIONInventors: Karl E. Sprentall, Trevor Polidore, Robert Mone, Michael Lunt, William Kwan
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Patent number: 10208979Abstract: An apparatus includes a core configured for use in an energy exchanger. The core includes a plurality of stacked and spaced planar plate pairs including a top plate and a bottom plate to support fluid flow of a first fluid flow and a second fluid flow. A plurality of dimples is provided by instances of the plate pairs. The plurality of dimples are arranged to generate substantially counter current flow between the first fluid flow and the second fluid flow.Type: GrantFiled: October 4, 2016Date of Patent: February 19, 2019Assignee: AIRIA LEASING INC.Inventors: Peter Karl Grinbergs, William Kwan, Gerard Reiger
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Publication number: 20180254405Abstract: A sensor apparatus includes a first of a plurality of layers having a top layer, a bottom layer, and at least one intermediate layer having an electrical conductor layer, each of the top layer, the bottom layer, and the at least one intermediate layer is disposed in direct contact with a respective adjacent layer. A second of the plurality of layers is disposed in direct contact with the first plurality of layers such that the bottom layer of the second plurality of layers is disposed in direct contact with the top layer of the first plurality of layers. The first and second plurality of layers are productive of a piezoelectric voltage absent of an external current producing device and in response to being deformed, and are productive of a change in capacitance in response to being deformed.Type: ApplicationFiled: February 23, 2018Publication date: September 6, 2018Inventors: Karl E. Sprentall, Trevor Polidore, Robert Mone, Michael Lunt, William Kwan
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Publication number: 20170023273Abstract: An apparatus includes a core configured for use in an energy exchanger. The core includes a plurality of stacked and spaced planar plate pairs including a top plate and a bottom plate to support fluid flow of a first fluid flow and a second fluid flow. A plurality of dimples is provided by instances of the plate pairs. The plurality of dimples are arranged to generate substantially counter current flow between the first fluid flow and the second fluid flow.Type: ApplicationFiled: October 4, 2016Publication date: January 26, 2017Inventors: Peter Karl GRINBERGS, William KWAN, Gerard REIGER
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Publication number: 20140076527Abstract: An apparatus includes a core configured for use in an energy exchanger. The core includes a plurality of stacked and spaced planar plate pairs including a top plate and a bottom plate to support fluid flow of a first fluid flow and a second fluid flow. A plurality of dimples is provided by instances of the plate pairs. The plurality of dimples are arranged to generate substantially counter current flow between the first fluid flow and the second fluid flow.Type: ApplicationFiled: September 3, 2013Publication date: March 20, 2014Applicant: Airia Leasing inc.Inventors: Peter Karl GRINBERGS, William KWAN, Gerard REIGER
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Patent number: 8235093Abstract: This invention relates in general to air exchange systems and, in particular, to an improved energy recovery ventilator, a cross flow plate core associated therewith and a method of conditioning air for a building. In one aspect, the invention provides a cross flow plate core comprising: a left hand wafer comprising a left hand spacer with a first of a plurality of membranes bonded thereto, the left hand spacer comprising a plurality of parallel curvilinear rails which form channels for receiving a first stream of air; and a right hand wafer comprising a right hand spacer with a second of the plurality of membranes bonded thereto, the right hand spacer comprising a plurality of parallel curvilinear rails which form channels for receiving a second stream of air, wherein the left hand spacer of the left hand wafer is bonded to the top of the membrane of the right hand wafer.Type: GrantFiled: June 19, 2008Date of Patent: August 7, 2012Assignee: Nutech R. Holdings Inc.Inventors: Peter Karl Grinbergs, William Kwan
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Publication number: 20100036549Abstract: Systems and apparatus are provided for using a flight management system in an aircraft for airborne fire fighting. An apparatus is provided for a display system for use in an aircraft equipped for transporting a fire retardant material. The display system comprises a display device associated with the aircraft, and a flight management system coupled to the display device. The flight management system is adapted to control the rendering of a navigational map on the display device, determine a predicted distribution region for a release of the fire retardant material, and overlay a graphical representation of the predicted distribution region on the navigational map.Type: ApplicationFiled: July 18, 2008Publication date: February 11, 2010Applicant: Honeywell International Inc.Inventors: William Kwan, John Zwagerman
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Publication number: 20090314480Abstract: This invention relates in general to air exchange systems and, in particular, to an improved energy recovery ventilator, a cross flow plate core associated therewith and a method of conditioning air for a building. In one aspect, the invention provides a cross flow plate core comprising: a left hand wafer comprising a left hand spacer with a first of a plurality of membranes bonded thereto, the left hand spacer comprising a plurality of parallel curvilinear rails which form channels for receiving a first stream of air; and a right hand wafer comprising a right hand spacer with a second of the plurality of membranes bonded thereto, the right hand spacer comprising a plurality of parallel curvilinear rails which form channels for receiving a second stream of air, wherein the left hand spacer of the left hand wafer is bonded to the top of the membrane of the right hand wafer.Type: ApplicationFiled: June 19, 2008Publication date: December 24, 2009Inventors: Peter Karl Grinbergs, William Kwan
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Publication number: 20080317010Abstract: Systems and methods for reducing signaling traffic in the provision of data services to a plurality of user endpoints (UEs). The UEs are in communication with a radio access network, which is the in communication with an IP multimedia subsystem (IMS) core for providing data service to the UEs, the data service including a videoshare service. The systems and methods involve providing an application server (AS) that during operation communicates with the IMS core and serves as a data service registrar for the UEs, and providing logic in the AS configured to receive from a first UE of the plurality of UEs videoshare capabilities information of the first UE, cache the first UE videoshare capabilities information and send to a second UE of the plurality of UEs the cached first UE videoshare capabilities information.Type: ApplicationFiled: June 22, 2007Publication date: December 25, 2008Inventors: Shamim A. NAQVI, William Kwan
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Patent number: 7007740Abstract: A novel system for and method of balancing fresh air flow and exhaust air flow through a ventilator. The ventilator has an air-to-air heat exchanger operably mounted within a principal fresh air flow passage and a principal stale air flow passage. A flow meter is provided for connection to the principal fresh air flow passage and the principal stale air flow passage, across the air-to-air heat exchanger. The flow meter is proportionally responsive to mass flow of the air flow passages to which they are connected. Further involved is at least one damper within at least one of the air flow passages. To ensure that both air flow measurements indicate a substantially equal response, each damper can be adjusted to change the amount of air flow within its respective air flow passage.Type: GrantFiled: January 22, 2003Date of Patent: March 7, 2006Assignee: Nutech R. Hldgs Inc.Inventors: Peter Karl Grinbergs, William Kwan
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Publication number: 20040140080Abstract: The present invention provides a novel system for and method of balancing fresh air flow and exhaust air flow through a ventilator. The ventilator comprises an air-to-air heat exchanger operably mounted within a principal fresh air flow passage and a principal stale air flow passage. The invention involves two flow meters respectively connected to the principal fresh air flow passage and the principal stale air flow passage, in parallel to the air-to-air heat exchanger. The flow meters are proportionally responsive to mass flow of the air flow passages to which they are connected. The invention further involves at least one damper within at least one of the air flow passages. To ensure that both air flow meters indicate a substantially equal response, each damper can be adjusted to change the amount of air flow within its respective air flow passage.Type: ApplicationFiled: January 22, 2003Publication date: July 22, 2004Inventors: Peter Karl Grinbergs, William Kwan
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Patent number: 6003781Abstract: A fuel injection device for a combustion chamber of a gas turbine with a liquid-cooled injection nozzle having a coolant tube which surrounds a fuel-conducting tube at a distance and which terminates in an annular chamber in the vicinity of the nozzle exit opening, or which constitutes this annular chamber which directly surrounds the fuel-conducting tube, wherein a separating wall element which surrounds the fuel-conducting tube is provided inside the coolant tube upstream of the annular chamber, viewed in the flow direction of the fuel, which divides the interior of the coolant tube into two chamber segments, wherein the first chamber segment is connected with a feed conduit and the second chamber segment with a removal conduit for the coolant.Type: GrantFiled: November 7, 1997Date of Patent: December 21, 1999Assignee: BMW Rolls-Royce GmbHInventor: William Kwan
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Patent number: 5918467Abstract: A heat shield for a gas turbine annular combustion chamber having a plurality of effusion holes (5), the central axes of which are inclined towards the heat shield surface and over which cooling air can penetrate from the rear to apply a film of cooling air to the hot surface. The surface is subdivided into sectors (7) and transition areas (10) between the sectors, the central axes of the effusion holes essentially being arranged in parallel to each other in a given sector or transition area. In addition, the central axes (6) of the effusion holes (5) located in each surfaces sector (7) are parallel to one another and extend substantially toward the associated corner area (8) and, in sections, extending approximately in a direction the same as the fuel combustion air swirl (4) in this sector (7).Type: GrantFiled: July 28, 1997Date of Patent: July 6, 1999Assignee: BMW Rolls-Royce GmbHInventor: William Kwan
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Patent number: 5894732Abstract: In order to cool the hot surface of the heat shield that surrounds the burner of a gas turbine annular combustion chamber as efficiently as possible, especially in the vicinity of the burner throughflow opening, a cooling air stream that escapes through a ridge that runs around the edge of the throughflow opening is guided by a guide rib in the direction of the throughflow opening. This guide rib is aligned essentially parallel to the ridge and on the combustion chamber side has an end that is bent in such fashion that the cooling air stream that flows into the gap between the ridge and the guide rib is deflected thereby in the direction of the hot surface of the heat shield.Type: GrantFiled: September 8, 1997Date of Patent: April 20, 1999Assignee: BMW Rolls-Royce GmbHInventor: William Kwan