Patents by Inventor Stephen Boyd

Stephen Boyd 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).

  • Publication number: 20250131463
    Abstract: Embodiments described herein provide a mechanism to solve the portfolio construction problem with nonconvex penalties and constraints that are separate across assets. This problem may be viewed as a special case of the separable-affine problem, i.e., the problem of minimizing a separable objective function with affine equality constraints.
    Type: Application
    Filed: December 20, 2024
    Publication date: April 24, 2025
    Inventors: Nicholas Moehle, Jack Gindi, Stephen Boyd, Mykel J. Kochenderfer
  • Publication number: 20250114242
    Abstract: A comfortable insert comprises a retention structure sized for placement under the eyelids and along at least a portion of conjunctival sac of the upper and lower lids of the eye. The retention structure resists deflection when placed in the conjunctival sac of the eye and to guide the insert along the sac when the eye moves. The retention structure can be configured in many ways to provide the resistance to deflection and may comprise a hoop strength so as to urge the retention structure outward and inhibit movement of the retention structure toward the cornea. The insert may move rotationally with deflection along the conjunctival sac, and may comprise a retention structure having a cross sectional dimension sized to fit within folds of the conjunctiva. The insert may comprise a release mechanism and therapeutic agent to release therapeutic amounts of the therapeutic agent for an extended time.
    Type: Application
    Filed: June 12, 2024
    Publication date: April 10, 2025
    Inventors: Eugene de Juan, JR., Yair Alster, Cary J. Reich, K. Angela Macfarlane, Janelle Chang, Stephen Boyd, David Sierra, Jose D. Alejandro, Douglas Sutton, Alexander J. Gould
  • Patent number: 12226525
    Abstract: An implant for insertion through a punctum and into a canalicular lumen of a patient. The implant includes a matrix of material, a therapeutic agent dispersed in the matrix of material, a sheath disposed over a portion of the matrix of material and configured to inhibit the therapeutic agent from being released from the matrix of material into the canalicular lumen and to allow the therapeutic agent to be released from a surface of the matrix of material to a tear film, and a retention structure configured to retain the implant within the canalicular lumen.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: February 18, 2025
    Inventors: Eugene de Juan, Jr., Stephen Boyd, Cary J. Reich, Alan R. Rapacki, Hanson S. Gifford, Mark Deem
  • Patent number: 12211055
    Abstract: Embodiments described herein provide a mechanism to solve the portfolio construction problem with nonconvex penalties and constraints that are separate across assets. This problem may be viewed as a special case of the separable-affine problem, i.e., the problem of minimizing a separable objective function with affine equality constraints.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: January 28, 2025
    Assignee: BlackRock Finance, Inc.
    Inventors: Nicholas Moehle, Jack Gindi, Stephen Boyd, Mykel J. Kochenderfer
  • Patent number: 12094005
    Abstract: Embodiments directed to simulating a portfolio of alternative investments. Cash flow templates are generated from cash flow parameters. Cash flows for various asset classes of alternative investments are generated from the cash flow templates. A Markowitz optimization generates investment allocations into the asset classes using cash flows and a risk parameter, such that the investment allocations maximize a cash flow of the portfolio for a corresponding value of the risk parameter. The investment allocations into the asset classes as a function of risk are displayed on a first user interface and a cash flow corresponding to the investment allocations is displayed on a second user interface. The first and second interface are inter-related, such that a movement of a computer-generated marker along a risk axis in the first user interface that causes changes to the investment allocations also causes changes to the cash flow displayed on the second user interface.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: September 17, 2024
    Assignee: BlackRock, Inc.
    Inventors: Stephen Boyd, Mykel Kochenderfer, Raphael Benarrosh, Pam Chan, Vidyasagar Vairavamurthy, Garson Brandon Levy, Jonathan Callan, Pascal Nguyen
  • Publication number: 20240281885
    Abstract: Embodiments described herein provide a timeline-based decumulation management mechanism for wealth management in retirement. The mechanism incorporates a plurality of factors and constraints including a desired consumption and bequeath, investment in qualified and nonqualified accounts, account disbursement and conversion rules, income and capital gains taxes, tracking of tax lots, estate tax rules such as basis step-up, Social Security, pensions, real estate, mortgages, SPIA and deferred income annuities, term life insurance, and alternatives. Specifically, the mechanism translates various account information into one or more convex constraints over a consumption variable, an income variable, a taxable income variable, and a bequest variable at the current year. Subject to these convex constraints, the mechanism is able to formulate a convex optimization problem that maximizes a utility representing the lifetime expectation of assets.
    Type: Application
    Filed: December 19, 2023
    Publication date: August 22, 2024
    Inventors: Steven Diamond, Shane Barratt, Nicholas Moehle, Mykel J. Kochenderfer, Stephen Boyd
  • Publication number: 20230414410
    Abstract: Methods and devices are adapted for implanting into the eye. An incision is formed in the cornea of the eye and a shunt is inserted through the incision into the anterior chamber of the eye. The shunt includes a fluid passageway. The shunt is passed along a pathway from the anterior chamber through the scleral spur of the eye into the suprachoroidal space and positioned in a first position such that a first portion of the fluid passageway communicates with the anterior chamber and a second portion of the fluid passageway communicates with the suprachoroidal space to provide a fluid passageway between the suprachoroidal space and the anterior chamber.
    Type: Application
    Filed: September 6, 2023
    Publication date: December 28, 2023
    Applicant: Alcon Inc.
    Inventors: Eugene DE JUAN, JR., Stephen BOYD, Mark E. DEEM, Hanson S. GIFFORD, III, Dan ROSENMAN
  • Publication number: 20230338595
    Abstract: UV hard-surface disinfection system that is able to disinfect the hard surfaces in a room, while minimizing missed areas due to shadows by providing multiple UV light towers that can be placed in several areas of a room such that shadowed areas are eliminated and that can be transported by a cart that is low to the ground such that the towers may be loaded and unloaded easily by a single operator. The system is able to be controlled remotely, such that during activation of the system, no operator is present, and to automatically cut power to all towers in the event that a person enters the room.
    Type: Application
    Filed: June 30, 2023
    Publication date: October 26, 2023
    Inventors: Waldemar John Lyslo, Mark Howard Schwartz, Stephen Boyd Pettis
  • Patent number: 11786402
    Abstract: Methods and devices are adapted for implanting into the eye. An incision is formed in the cornea of the eye and a shunt is inserted through the incision into the anterior chamber of the eye. The shunt includes a fluid passageway. The shunt is passed along a pathway from the anterior chamber through the scleral spur of the eye into the suprachoroidal space and positioned in a first position such that a first portion of the fluid passageway communicates with the anterior chamber and a second portion of the fluid passageway communicates with the suprachoroidal space to provide a fluid passageway between the suprachoroidal space and the anterior chamber.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: October 17, 2023
    Assignee: Alcon Inc.
    Inventors: Eugene de Juan, Jr., Stephen Boyd, Mark E. Deem, Hanson S. Gifford, III, Dan Rosenman
  • Publication number: 20230165791
    Abstract: An implant for insertion into a punctum of a patient comprises a body. The body has a distal end, a proximal end, and an axis therebetween. The distal end of the body is insertable distally through the punctum into the canalicular lumen. The body comprises a therapeutic agent included within an agent matrix drug core. Exposure of the agent matrix to the tear fluid effects an effective therapeutic agent release into the tear fluid over a sustained period. The body has a sheath disposed over the agent matrix to inhibit release of the agent away from the proximal end. The body also has an outer surface configured to engage luminal wall tissues so as to inhibit expulsion when disposed therein. In specific embodiments, the agent matrix comprises a non-bioabsorbable polymer, for example silicone in a non-homogenous mixture with the agent.
    Type: Application
    Filed: August 6, 2022
    Publication date: June 1, 2023
    Applicant: Mati Therapeutics Inc.
    Inventors: Eugene de Juan, JR., Cary Reich, Stephen Boyd, Hanson S. Gifford, III, Mark Deem
  • Publication number: 20230102547
    Abstract: A therapeutic system comprises an ocular insert placed on a region outside an optical zone of an eye. The ocular insert comprises two structures: a first skeletal structure and a second cushioning structure. The first structure functions as a skeletal frame which maintains positioning of the implant along the anterior portion of the eye and provides support to the second, cushioning structure. This first structure maintains the attachment of the therapeutic system to the anterior portion of the eye for at least thirty days. In some embodiments the first structure remains a constant size and shape, e.g. a ring shape, a ring with haptics, or a curvilinear ring that is confined to and restrainingly engages the inferior and superior conjunctival fornices so as to retain the implant within the tear fluid and/or against the tissues of the eye.
    Type: Application
    Filed: May 6, 2022
    Publication date: March 30, 2023
    Inventors: Yair Alster, Eugene de Juan, JR., Cary J. Reich, Stephen Boyd, David Sierra, Jose D. Alejandro, K. Angela Macfarlane, Douglas Sutton
  • Publication number: 20220401777
    Abstract: A reactor system for decomposing at least one of a per- or polyfluoroalkyl substance (PFAS) is provided. The system includes a material having an interior surface that defines a compartment; a subaqueous liquid in the compartment; and an electron donor in the subaqueous liquid, the electron donor configured to release a hydrated electron upon ultraviolet (UV) irradiation. The reactor system is configured so that when the electron donor releases a hydrated electron into the subaqueous liquid, the hydrated electron has a longer lifespan relative to an electron released in normal bulk phase water, and when a PFAS is present within the subaqueous liquid, the hydrated electron is capable of reductively defluorinating the PFAS and to generate fluoride ions (F). A method of operating the system to decompose PFAS is also provided.
    Type: Application
    Filed: November 7, 2020
    Publication date: December 22, 2022
    Applicant: Board of Trustees of Michigan State University
    Inventors: Hui LI, Stephen A. BOYD, Brian J. TEPPEN
  • Publication number: 20220405845
    Abstract: Embodiments described herein provide a timeline-based decumulation management mechanism for wealth management in retirement. The mechanism incorporates a plurality of factors and constraints including a desired consumption and bequeath, investment in qualified and nonqualified accounts, account disbursement and conversion rules, income and capital gains taxes, tracking of tax lots, estate tax rules such as basis step-up, Social Security, pensions, real estate, mortgages, SPIA and deferred income annuities, term life insurance, and alternatives. Specifically, the mechanism translates various account information into one or more convex constraints over a consumption variable, an income variable, a taxable income variable, and a bequest variable at the current year. Subject to these convex constraints, the mechanism is able to formulate a convex optimization problem that maximizes a utility representing the lifetime expectation of assets.
    Type: Application
    Filed: December 29, 2021
    Publication date: December 22, 2022
    Inventors: Steven Diamond, Shane Barratt, Nicholas Moehle, Mykel J. Kochenderfer, Stephen Boyd
  • Patent number: 11406592
    Abstract: An implant for insertion into a punctum of a patient comprises a body. The body has a distal end, a proximal end, and an axis therebetween. The distal end of the body is insertable distally through the punctum into the canalicular lumen. The body comprises a therapeutic agent included within an agent matrix drug core. Exposure of the agent matrix to the tear fluid effects an effective therapeutic agent release into the tear fluid over a sustained period. The body has a sheath disposed over the agent matrix to inhibit release of the agent away from the proximal end. The body also has an outer surface configured to engage luminal wall tissues so as to inhibit expulsion when disposed therein. In specific embodiments, the agent matrix comprises a non-bioabsorbable polymer, for example silicone in a non-homogenous mixture with the agent.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: August 9, 2022
    Assignee: Mati Therapeutics Inc.
    Inventors: Eugene de Juan, Jr., Cary Reich, Stephen Boyd, Hanson S. Gifford, III, Mark Deem
  • Patent number: 11357951
    Abstract: Systems, devices and methods for draining and analyzing bodily fluids are disclosed in which a drainage assembly is configured to prevent negative pressure build-up. The drainage assembly generally includes a catheter which may include a drainage lumen, a reservoir, a venting mechanism in fluid communication with the drainage lumen and a positive pressure lumen, and a controller. The venting mechanism may further include a valve which is configured to maintain a closed position, as well as a vent in fluid communication with the valve, where the venting mechanism is configured to inhibit wetting of the vent from fluid within the drainage lumen.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: June 14, 2022
    Assignee: Potrero Medical, Inc.
    Inventors: Daniel R. Burnett, Rich Keenan, Dimitri Sokolov, Stephen Boyd, Martin Williams, Kondapavulur Venkateswara-Rao, Michelle Arney
  • Publication number: 20220152346
    Abstract: Systems, devices and methods for draining and analyzing bodily fluids are disclosed in which a drainage assembly is configured to prevent negative pressure build-up. The drainage assembly generally includes a catheter which may include a drainage lumen, a reservoir, a venting mechanism in fluid communication with the drainage lumen and a positive pressure lumen, and a controller.
    Type: Application
    Filed: February 1, 2022
    Publication date: May 19, 2022
    Applicant: Potrero Medical, Inc.
    Inventors: Daniel R. BURNETT, Rich KEENAN, Dimitri SOKOLOV, Stephen BOYD, Martin WILLIAMS, Kondapavulur VENKATESWARA-RAO, Michelle ARNEY
  • Patent number: 11272982
    Abstract: The present invention provides devices and methods for decalcifying an aortic valve. The methods and devices of the present invention break up or obliterate calcific deposits in and around the aortic valve through application or removal of heat energy from the calcific deposits.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: March 15, 2022
    Assignee: Twelve, Inc.
    Inventors: Hanson Gifford, III, Mark E. Deem, Stephen Boyd
  • Publication number: 20220031507
    Abstract: This document discusses, among other things, an apparatus comprising a lacrimal implant insertable at least partially into a lacrimal punctum. The lacrimal implant comprises an implant core, and an implant body. The implant body includes a cavity sized and shaped to receive the implant core. At least one of the implant core and the implant cavity includes a detection device configured to allow automatic detection of the lacrimal implant with a separate detector device.
    Type: Application
    Filed: October 12, 2021
    Publication date: February 3, 2022
    Applicant: Mati Therapeutics, Inc.
    Inventors: Eugene de Juan, Stephen Boyd, Cary J. Reich, Christopher V. Cardenas, Tommy Jewell, Lorrie Ma, Tuan Nguyen
  • Patent number: 11141312
    Abstract: This document discusses, among other things, an apparatus comprising a lacrimal implant insertable at least partially into a lacrimal punctum. The lacrimal implant comprises an implant core, and an implant body. The implant body includes a cavity sized and shaped to receive the implant core. At least one of the implant core and the implant cavity includes a detection device configured to allow automatic detection of the lacrimal implant with a separate detector device.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: October 12, 2021
    Assignee: Mati Therapeutics Inc.
    Inventors: Eugene de Juan, Jr., Stephen Boyd, Cary J. Reich, Christopher V. Cardenas, Tommy Jewell, Lorrie Ma, Tuan Nguyen
  • Publication number: 20210236004
    Abstract: Devices and methods for monitoring physiologic parameters are described herein which may utilize a non-invasive respiratory monitor to detect minor variations in expiratory airflow pressure known as cardiogenic oscillations which are generated by changes in the pulmonary blood volume that correspond with the cardiac cycle. These cardiogenic oscillations are a direct indicator of cardiac function and may be used to correlate various physiologic parameters such as stroke volume, pulmonary artery pressure, etc.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Applicant: Respirix, Inc.
    Inventors: Evan S. LUXON, Daniel R. BURNETT, Stephen BOYD