Patents by Inventor Steven Leong

Steven Leong 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: 20240358521
    Abstract: A method of forming a composite titanium body for use in forming spinal implant interbodies includes selecting a metal alloy body, carving out a top portion and a bottom portion from the metal alloy body, and bonding a porous material to the carved-out top and bottom portions. Multiple pieces may be cut from the composite titanium body, each having a front face formed of the metal alloy, top and bottom portions formed of the porous material, and with a medial portion of the metal alloy extending from the front face to the back. Methods and devices for spinal interbodies having locking mechanisms to prevent bone screw back-out are also described.
    Type: Application
    Filed: July 11, 2024
    Publication date: October 31, 2024
    Inventors: Scott Robinson, Steven Leong, Frank Chang
  • Patent number: 12064354
    Abstract: A method of forming a composite titanium body for use in forming spinal implant interbodies includes selecting a metal alloy body, carving out a top portion and a bottom portion from the metal alloy body, and bonding a porous material to the carved-out top and bottom portions. Multiple pieces may be cut from the composite titanium body, each having a front face formed of the metal alloy, top and bottom portions formed of the porous material, and with a medial portion of the metal alloy extending from the front face to the back. Methods and devices for spinal interbodies having locking mechanisms to prevent bone screw back-out are also described.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: August 20, 2024
    Assignee: ALPHATEC SPINE, INC.
    Inventors: Scott Robinson, Steven Leong, Frank Chang
  • Publication number: 20240164907
    Abstract: Disclosed herein are expandable interbodies with modular endplates. An expandable interbody has an outer column, an inner column threadedly coupled and translatable relative to the outer column along the longitudinal axis, and an expansion ring to adjust a body length of the expandable interbody. The expansion ring has a plurality of teeth, and the outer column has at least one arm for engaging a tooth of the plurality of teeth to lock the expansion ring. The inner column and/or outer column can include a connector for connection to a modular endplate that has a substantially hollow core. The modular endplate includes a plate with a set screw entrapped therein. The modular endplate has an aperture to receive the connector of the inner and/or outer column.
    Type: Application
    Filed: November 17, 2023
    Publication date: May 23, 2024
    Inventors: Parker Smith, Steven Leong, Jared Beach, Thomas Hackathorn, Scott Robinson
  • Publication number: 20230172728
    Abstract: An intervertebral cage with an outer frame, an open inner core region and a porosity gradient within the outer frame is provided. The outer frame includes a posterior wall, an anterior wall, a pair of side walls extending between the posterior wall and the anterior wall and the porosity gradient may comprise at least one of: a decreasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; an increasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; a decreasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls; and an increasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 8, 2023
    Applicant: Alphatec Spine, Inc.
    Inventors: Sri Vishnubhotla, Scott Robinson, Steven Leong, Frank Chang
  • Patent number: 11596527
    Abstract: An intervertebral cage with an outer frame, an open inner core region and a porosity gradient within the outer frame is provided. The outer frame includes a posterior wall, an anterior wall, a pair of side walls extending between the posterior wall and the anterior wall and the porosity gradient may comprise at least one of: a decreasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; an increasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; a decreasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls; and an increasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: March 7, 2023
    Assignee: Alphatec Spine, Inc.
    Inventors: Sri Vishnubhotla, Scott Robinson, Steven Leong, Frank Chang
  • Publication number: 20220087819
    Abstract: A method of forming a composite titanium body for use in forming spinal implant interbodies includes selecting a metal alloy body, carving out a top portion and a bottom portion from the metal alloy body, and bonding a porous material to the carved-out top and bottom portions. Multiple pieces may be cut from the composite titanium body, each having a front face formed of the metal alloy, top and bottom portions formed of the porous material, and with a medial portion of the metal alloy extending from the front face to the back. Methods and devices for spinal interbodies having locking mechanisms to prevent bone screw back-out are also described.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 24, 2022
    Inventors: Scott Robinson, Steven Leong, Frank Chang
  • Publication number: 20220008107
    Abstract: A system and a bone fixation plate for preventing a fastener from rotating so as to prevent the fastener from backing out is provided. The system includes a plate having an opening. A retention member having an arm extending into the opening is configured to engage the head of the fastener so as to prevent the fastener from rotating after the fastener is seated within a vertebral body or implant. In one embodiment, the retention member engages a top surface of the head of the fastener. In another embodiment, the retention member engages a side wall of the head of the fastener.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 13, 2022
    Applicant: Alphatec Spine, Inc.
    Inventors: Nathaniel DuBois, Scott Robinson, Steven Leong, Jonathan T. Costabile
  • Patent number: 11154338
    Abstract: A system and a bone fixation plate for preventing a fastener from rotating so as to prevent the fastener from backing out is provided. The system includes a plate having an opening. A retention member having an arm extending into the opening is configured to engage the head of the fastener so as to prevent the fastener from rotating after the fastener is seated within a vertebral body or implant. In one embodiment, the retention member engages a top surface of the head of the fastener. In another embodiment, the retention member engages a side wall of the head of the fastener.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: October 26, 2021
    Assignee: Alphatec Spine, Inc.
    Inventors: Nathaniel DuBois, Scott Robinson, Steven Leong, Jonathan T. Costabile
  • Publication number: 20210186708
    Abstract: An intervertebral cage with an outer frame, an open inner core region and a porosity gradient within the outer frame is provided. The outer frame includes a posterior wall, an anterior wall, a pair of side walls extending between the posterior wall and the anterior wall and the porosity gradient may comprise at least one of: a decreasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; an increasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; a decreasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls; and an increasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 24, 2021
    Applicant: Alphatec Spine, Inc.
    Inventors: Sri Vishnubhotla, Scott Robinson, Steven Leong, Frank Chang
  • Patent number: 10940019
    Abstract: An intervertebral cage with an outer frame, an open inner core region and a porosity gradient within the outer frame is provided. The outer frame includes a posterior wall, an anterior wall, a pair of side walls extending between the posterior wall and the anterior wall and the porosity gradient may comprise at least one of: a decreasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; an increasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; a decreasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls; and an increasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: March 9, 2021
    Assignee: Alphatec Spine, Inc.
    Inventors: Sri Vishnubhotla, Scott Robinson, Steven Leong, Frank Chang
  • Patent number: 10556951
    Abstract: The invention provides anti-CD33 antibodies and immunoconjugates and methods of using the same.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: February 11, 2020
    Assignee: Genentech, Inc.
    Inventors: Shang-Fan Yu, Wei-Ching Liang, Yan Wu, Steven Leong, Andrew Polson
  • Publication number: 20180312586
    Abstract: The invention provides anti-CD33 antibodies and immunoconjugates and methods of using the same.
    Type: Application
    Filed: March 12, 2018
    Publication date: November 1, 2018
    Applicant: GENENTECH, INC.
    Inventors: Shang-Fan Yu, Wei-Ching Liang, Yan Wu, Steven Leong, Andrew Polson
  • Publication number: 20180263785
    Abstract: An intervertebral cage with an outer frame, an open inner core region and a porosity gradient within the outer frame is provided. The outer frame includes a posterior wall, an anterior wall, a pair of side walls extending between the posterior wall and the anterior wall and the porosity gradient may comprise at least one of: a decreasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; an increasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; a decreasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls; and an increasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 20, 2018
    Inventors: Sri Vishnubhotla, Scott Robinson, Steven Leong, Frank Chang
  • Patent number: 9951133
    Abstract: The invention provides anti-CD33 antibodies and immunoconjugates and methods of using the same.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: April 24, 2018
    Assignee: GENENTECH, INC.
    Inventors: Shang-Fan Yu, Wei-Ching Liang, Yan Wu, Steven Leong, Andrew Polson
  • Publication number: 20170181781
    Abstract: A system and a bone fixation plate for preventing a fastener from rotating so as to prevent the fastener from backing out is provided. The system includes a plate having an opening. A retention member having an arm extending into the opening is configured to engage the head of the fastener so as to prevent the fastener from rotating after the fastener is seated within a vertebral body or implant. In one embodiment, the retention member engages a top surface of the head of the fastener. In another embodiment, the retention member engages a side wall of the head of the fastener.
    Type: Application
    Filed: March 15, 2017
    Publication date: June 29, 2017
    Inventors: NATHANIEL DUBOIS, SCOTT ROBINSON, STEVEN LEONG, JONATHAN T. COSTABILE
  • Publication number: 20170002074
    Abstract: The invention provides anti-CD33 antibodies and immunoconjugates and methods of using the same.
    Type: Application
    Filed: June 2, 2016
    Publication date: January 5, 2017
    Applicant: GENENTECH, INC.
    Inventors: Shang-Fan Yu, Wei-Ching Liang, Yan Wu, Steven Leong, Andrew Polson
  • Publication number: 20150122754
    Abstract: A coin holder is provided which has a base portion and at least one elongate trough defined in the base portion. Each trough is sized and shaped to receive a stack of a particular denomination of coins. A plurality of regularly-spaced grooves is formed in the bottom surface of at least one trough. The grooves are oriented transversely to the trough. Each one of the grooves is adapted to receive one of the coins in the stack. The grooves are spaced apart so that every nth coin in the stack is received in one of the grooves. The grooves are shaped so that every nth coin in the stack is laterally displaced from adjacent coins in a generally vertical direction to provide a discernible pattern in the stack of coins.
    Type: Application
    Filed: April 4, 2014
    Publication date: May 7, 2015
    Inventor: Steven Leong Jung
  • Patent number: 8652468
    Abstract: Described are conjugates formed by an antibody fragment covalently attached to a nonproteinaceous polymer, wherein the apparent size of the conjugate is at least about 500 kD. The conjugates exhibit substantially improved half-life, mean residence time, and/or clearance rate in circulation as compared to the underivatized parental antibody fragment. Also described are conjugates directed against human vascular endothelial growth factor (VEGF), human p185 receptor-like tyrosine kinase (HER2), human CD20, human CD18, human CD11a, human IgE, human apoptosis receptor-2 (Apo-2), human tumor necrosis factor-? (TNF-?), human tissue factor (TF), human ?4?7 integrin, human GPIIb-IIIa integrin, human epidermal growth factor receptor (EGFR), human CD3, and human interleukin-2 receptor ?-chain (TAC) for diagnostic and therapeutic applications.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: February 18, 2014
    Assignee: Genentech, Inc.
    Inventors: Vanessa Hsei, Iphigenia Koumenis, Steven Leong, Zahra Shahrokh, Gerardo Zapata
  • Publication number: 20130084302
    Abstract: Described are conjugates formed by an antibody fragment covalently attached to a nonproteinaceous polymer, wherein the apparent size of the conjugate is at least about 500 kD. The conjugates exhibit substantially improved half-life, mean residence time, and/or clearance rate in circulation as compared to the underivatized parental antibody fragment. Also described are conjugates directed against human vascular endothelial growth factor (VEGF), human p185 receptor-like tyrosine kinase (HER2), human CD20, human CD18, human CD11a, human IgE, human apoptosis receptor-2 (Apo-2), human tumor necrosis factor-? (TNF-?), human tissue factor (TF), human ?4?7 integrin, human GPIIb-IIIa integrin, human epidermal growth factor receptor (EGFR), human CD3, and human interleukin-2 receptor ?-chain (TAC) for diagnostic and therapeutic applications.
    Type: Application
    Filed: February 13, 2012
    Publication date: April 4, 2013
    Inventors: Vanessa Hsei, Iphigenia Koumenis, Steven Leong, Zahra Shahrokh, Gerardo Zapata
  • Patent number: D886899
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: June 9, 2020
    Inventor: Steven Leong Jung