Patents by Inventor Zachary J. Lee
Zachary J. Lee 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: 20240067035Abstract: Certain aspects of the present disclosure provide techniques for electric vehicle charging management. In one example, a method includes: building a graph representing an electrical topology of the electric vehicle charging facility and producing an updated graph by updating a state of the one or more network nodes based on electric current or power flow through the one or more passive electric components and updating a state of the one or more component nodes based on electric current or power produced or consumed by the one or more active electric components. The method further includes receiving a selected control strategy for the electric vehicle charging facility and adjusting an electric current or a power draw of an electric vehicle charging station in the electric vehicle charging facility based on the updated graph and the selected control strategy.Type: ApplicationFiled: August 24, 2022Publication date: February 29, 2024Inventors: Zachary J. LEE, Robin Guarnotta, Rajat Sethi, Justin D. Roethle, Jeffrey William Wright, Ted G. Lee
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Patent number: 11376981Abstract: Systems and methods in accordance with embodiments of the invention impalement adaptive electric vehicle (EV) charging. One embodiment includes one or more electric vehicle supply equipment (EVSE); an adaptive EV charging platform, including a processor; a memory containing: an adaptive EV charging application; a plurality of EV charging parameters. In addition, the processor is configured by the adaptive EV charging application to: collect the plurality of EV charging parameters from one or more EVSEs, simulate EV charging control routines and push out updated EV charging control routines to the one or more EVSEs. Additionally, the adaptive EV charging platform is configured to control charging of EVs based upon the plurality of EV charging parameters collected from at least one EVSE.Type: GrantFiled: February 10, 2020Date of Patent: July 5, 2022Assignee: California Institute of TechnologyInventors: Zachary J. Lee, Tongxin Li, Steven H. Low, Sunash B. Sharma
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Patent number: 10926659Abstract: Adaptive charging networks in accordance with embodiments of the invention enable the optimization of electric design of charging networks for electric vehicles. One embodiment includes an electric vehicle charging network, including one or more centralized computing systems, a communications network, several, electric vehicle node controllers for charging several electric vehicles (EVs), where the one or more centralized computing systems is configured to: receive the electric vehicle node parameters from several electric vehicle node controllers, calculate a charging rates for the electric vehicle node controllers using quadratic programming (QP), where the quadratic programming computes the charging rates based on the electric vehicle node parameters, adaptive charging parameters and a quadratic cost function, and distributes the charging rates to the electric vehicle node controllers.Type: GrantFiled: December 3, 2018Date of Patent: February 23, 2021Assignees: California Institute of Technology, Powerflex Systems, Inc.Inventors: Ted Lee, Zachary J. Lee, Steven H. Low, Daniel C. Chang, Cheng Jin, Rand B. Lee, George S. Lee
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Publication number: 20200254896Abstract: Systems and methods in accordance with embodiments of the invention impalement adaptive electric vehicle (EV) charging. One embodiment includes one or more electric vehicle supply equipment (EVSE); an adaptive EV charging platform, including a processor; a memory containing: an adaptive EV charging application; a plurality of EV charging parameters. In addition, the processor is configured by the adaptive EV charging application to: collect the plurality of EV charging parameters from one or more EVSEs, simulate EV charging control routines and push out updated EV charging control routines to the one or more EVSEs. Additionally, the adaptive EV charging platform is configured to control charging of EVs based upon the plurality of EV charging parameters collected from at least one EVSE.Type: ApplicationFiled: February 10, 2020Publication date: August 13, 2020Applicant: California Institute of TechnologyInventors: Zachary J. Lee, Tongxin Li, Steven H. Low, Sunash B. Sharma
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Publication number: 20190184850Abstract: Adaptive charging networks in accordance with embodiments of the invention enable the optimization of electric design of charging networks for electric vehicles. One embodiment includes an electric vehicle charging network, including one or more centralized computing systems, a communications network, several, electric vehicle node controllers for charging several electric vehicles (EVs), where the one or more centralized computing systems is configured to: receive the electric vehicle node parameters from several electric vehicle node controllers, calculate a charging rates for the electric vehicle node controllers using quadratic programming (QP), where the quadratic programming computes the charging rates based on the electric vehicle node parameters, adaptive charging parameters and a quadratic cost function, and distributes the charging rates to the electric vehicle node controllers.Type: ApplicationFiled: December 3, 2018Publication date: June 20, 2019Applicant: California Institute of TechnologyInventors: Ted Lee, Zachary J. Lee, Steven H. Low, Daniel C. Chang, Cheng Jin, Rand B. Lee, George S. Lee
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Patent number: 9399540Abstract: A dispensing container includes a plurality of sheets of products stored within a housing. The container includes a dispensing orifice having a length that extends along a longitudinal axis from a first end to a second end. In particular embodiments, the dispensing orifice has a maximum width disposed not less than 20% and not more than 49% of the distance from the first end to the second end, a midpoint width disposed halfway between the first end and the second end, the midpoint width being less than the maximum width, and a third width disposed 80% of the distance from the first end to the second end, the third width being no greater than 80% of the maximum width. In particular embodiments, the dispensing orifice is symmetrical about a longitudinal axis but asymmetrical about a transverse axis. In particular embodiments, the dispensing orifice has an ovoid shape.Type: GrantFiled: July 10, 2012Date of Patent: July 26, 2016Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Lisa L. Bushman, Paul W. Christoffel, Lawrence J. Romano, III, Zachary J. Lee
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Publication number: 20140001196Abstract: A dispensing container includes a plurality of sheets of products stored within a housing. The container includes a dispensing orifice having a length that extends along a longitudinal axis from a first end to a second end. In particular embodiments, the dispensing orifice has a maximum width disposed not less than 20% and not more than 49% of the distance from the first end to the second end, a midpoint width disposed halfway between the first end and the second end, the midpoint width being less than the maximum width, and a third width disposed 80% of the distance from the first end to the second end, the third width being no greater than 80% of the maximum width. In particular embodiments, the dispensing orifice is symmetrical about a longitudinal axis but asymmetrical about a transverse axis. In particular embodiments, the dispensing orifice has an ovoid shape.Type: ApplicationFiled: July 10, 2012Publication date: January 2, 2014Inventors: Lisa L. Bushman, Paul W. Christoffel, Lawrence J. Romano, III, Zachary J. Lee
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Publication number: 20140001072Abstract: A storing and dispensing container for product. The container includes a flexible pouch for storing product. A flip top, having a lid connected to a flange by a hinge, is affixed to an outer surface of the pouch at the top portion of the pouch. The flange surrounds an interior region. The interior region includes a removable portion which can be removed to reveal a dispensing orifice. The interior region defines an interior region area. The removable portion area is no greater than 80% of the interior region area, and the removable portion abuts the flange at a tear apex.Type: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Inventors: Paul W. Christoffel, Lisa L. Bushman, Lawrence J. Romano, III, Zachary J. Lee