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).
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Publication number: 20240358521Abstract: 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: ApplicationFiled: July 11, 2024Publication date: October 31, 2024Inventors: Scott Robinson, Steven Leong, Frank Chang
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Patent number: 12064354Abstract: 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: GrantFiled: September 23, 2021Date of Patent: August 20, 2024Assignee: ALPHATEC SPINE, INC.Inventors: Scott Robinson, Steven Leong, Frank Chang
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Publication number: 20240164907Abstract: 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: ApplicationFiled: November 17, 2023Publication date: May 23, 2024Inventors: Parker Smith, Steven Leong, Jared Beach, Thomas Hackathorn, Scott Robinson
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Publication number: 20230172728Abstract: 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: ApplicationFiled: January 30, 2023Publication date: June 8, 2023Applicant: Alphatec Spine, Inc.Inventors: Sri Vishnubhotla, Scott Robinson, Steven Leong, Frank Chang
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Patent number: 11596527Abstract: 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: GrantFiled: February 11, 2021Date of Patent: March 7, 2023Assignee: Alphatec Spine, Inc.Inventors: Sri Vishnubhotla, Scott Robinson, Steven Leong, Frank Chang
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Publication number: 20220087819Abstract: 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: ApplicationFiled: September 23, 2021Publication date: March 24, 2022Inventors: Scott Robinson, Steven Leong, Frank Chang
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Publication number: 20220008107Abstract: 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: ApplicationFiled: September 22, 2021Publication date: January 13, 2022Applicant: Alphatec Spine, Inc.Inventors: Nathaniel DuBois, Scott Robinson, Steven Leong, Jonathan T. Costabile
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Patent number: 11154338Abstract: 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: GrantFiled: March 15, 2017Date of Patent: October 26, 2021Assignee: Alphatec Spine, Inc.Inventors: Nathaniel DuBois, Scott Robinson, Steven Leong, Jonathan T. Costabile
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Publication number: 20210186708Abstract: 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: ApplicationFiled: February 11, 2021Publication date: June 24, 2021Applicant: Alphatec Spine, Inc.Inventors: Sri Vishnubhotla, Scott Robinson, Steven Leong, Frank Chang
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Patent number: 10940019Abstract: 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: GrantFiled: March 14, 2018Date of Patent: March 9, 2021Assignee: Alphatec Spine, Inc.Inventors: Sri Vishnubhotla, Scott Robinson, Steven Leong, Frank Chang
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Patent number: 10556951Abstract: The invention provides anti-CD33 antibodies and immunoconjugates and methods of using the same.Type: GrantFiled: March 12, 2018Date of Patent: February 11, 2020Assignee: Genentech, Inc.Inventors: Shang-Fan Yu, Wei-Ching Liang, Yan Wu, Steven Leong, Andrew Polson
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Publication number: 20180312586Abstract: The invention provides anti-CD33 antibodies and immunoconjugates and methods of using the same.Type: ApplicationFiled: March 12, 2018Publication date: November 1, 2018Applicant: GENENTECH, INC.Inventors: Shang-Fan Yu, Wei-Ching Liang, Yan Wu, Steven Leong, Andrew Polson
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Publication number: 20180263785Abstract: 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: ApplicationFiled: March 14, 2018Publication date: September 20, 2018Inventors: Sri Vishnubhotla, Scott Robinson, Steven Leong, Frank Chang
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Patent number: 9951133Abstract: The invention provides anti-CD33 antibodies and immunoconjugates and methods of using the same.Type: GrantFiled: June 2, 2016Date of Patent: April 24, 2018Assignee: GENENTECH, INC.Inventors: Shang-Fan Yu, Wei-Ching Liang, Yan Wu, Steven Leong, Andrew Polson
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Publication number: 20170181781Abstract: 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: ApplicationFiled: March 15, 2017Publication date: June 29, 2017Inventors: NATHANIEL DUBOIS, SCOTT ROBINSON, STEVEN LEONG, JONATHAN T. COSTABILE
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Publication number: 20170002074Abstract: The invention provides anti-CD33 antibodies and immunoconjugates and methods of using the same.Type: ApplicationFiled: June 2, 2016Publication date: January 5, 2017Applicant: GENENTECH, INC.Inventors: Shang-Fan Yu, Wei-Ching Liang, Yan Wu, Steven Leong, Andrew Polson
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Publication number: 20150122754Abstract: 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: ApplicationFiled: April 4, 2014Publication date: May 7, 2015Inventor: Steven Leong Jung
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Patent number: 8652468Abstract: 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: GrantFiled: February 13, 2012Date of Patent: February 18, 2014Assignee: Genentech, Inc.Inventors: Vanessa Hsei, Iphigenia Koumenis, Steven Leong, Zahra Shahrokh, Gerardo Zapata
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Publication number: 20130084302Abstract: 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: ApplicationFiled: February 13, 2012Publication date: April 4, 2013Inventors: Vanessa Hsei, Iphigenia Koumenis, Steven Leong, Zahra Shahrokh, Gerardo Zapata
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Patent number: D886899Type: GrantFiled: April 6, 2018Date of Patent: June 9, 2020Inventor: Steven Leong Jung