Patents by Inventor Robert C. Spiro

Robert C. Spiro 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).

  • Patent number: 9011894
    Abstract: The present application provides sterile hyaluronic polymer compositions than are useful, e.g., as medical devices, biomedical adhesives, and sealants. Generally, provided are sterile dry compositions comprising a thiol-derivatized hyaluronic acid and one or more stabilizing excipients. Also provided are related kits and methods. The compositions described herein are particularly robust to sterilizing irradiation, and substantially maintain both their molecular weight and gelation parameters such as gelation time after sterilization, such that such sterile compositions are capable of hydrogel formation.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: April 21, 2015
    Assignee: Carbylan Therapeutics, Inc.
    Inventors: George Y. Daniloff, Robert C. Spiro, David M. Gravett, Patrick J. Hillas, Pingren He
  • Patent number: 8784893
    Abstract: Disclosed in the present application are compositions comprising a bioresorbable polymer matrix and a bio active agent, wherein the bioactive agent is dispersed within polymer matrix as a solid. Also provided herein are methods for preparing a bioactive agent formulation, wherein the agent is present in a solid form and, wherein the agent is occluded into a polymeric matrix by polymerization of polymer matrix precursors or by self assembly of the polymer.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: July 22, 2014
    Assignee: Carbylan Therapeutics, Inc.
    Inventors: George Daniloff, David Gravett, Robert C. Spiro
  • Publication number: 20110033540
    Abstract: Disclosed in the present application are compositions comprising a bioresorbable polymer matrix and a bio active agent, wherein the bioactive agent is dispersed within polymer matrix as a solid. Also provided herein are methods for preparing a bioactive agent formulation, wherein the agent is present in a solid form and, wherein the agent is occluded into a polymeric matrix by polymerization of polymer matrix precursors or by self assembly of the polymer.
    Type: Application
    Filed: February 5, 2008
    Publication date: February 10, 2011
    Inventors: George Daniloff, David Gravett, Robert C. Spiro
  • Publication number: 20090017091
    Abstract: The present application provides sterile hyaluronic polymer compositions than are useful, e.g., as medical devices, biomedical adhesives, and sealants. Generally, provided are sterile dry compositions comprising a thiol-derivatized hyaluronic acid and one or more stabilizing excipients. Also provided are related kits and methods. The compositions described herein are particularly robust to sterilizing irradiation, and substantially maintain both their molecular weight and gelation parameters such as gelation time after sterilization, such that such sterile compositions are capable of hydrogel formation.
    Type: Application
    Filed: June 30, 2008
    Publication date: January 15, 2009
    Inventors: George Y. Daniloff, Robert C. Spiro, David M. Gravett, Patrick J. Hillas, Pingren He
  • Patent number: 7070942
    Abstract: A method and composition are provided for inducing or enhancing chondrogenesis in vivo or in vitro. The method is performed by exposing the cells in vitro or in vivo to an extracellular matrix comprising of type I collagen, type II collagen or a mixture of type I collagen or type II collagen and hyaluronate and further containing GDF-5.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: July 4, 2006
    Assignee: DePuy Spine, Inc.
    Inventors: Mohammad A. Heidaran, Robert C. Spiro, Robin Daverman, LinShu Liu
  • Patent number: 6953784
    Abstract: A carrier and a method for preparing it are provided for use in the delivery of therapeutic agents. A polysaccharide is reacted with an oxidizing agent to open sugar rings on the polysaccharide to form aldehyde groups. The aldehyde groups are reacted to form covalent oxime linkages with a second polysaccharide and each of the first and second polysaccharide is selected from the group consisting of hyaluronic acid, dextran, dextran sulfate, chondroitin sulfate, dermatan sulfate, keratan sulfate, heparan, heparan sulfate and alginate.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: October 11, 2005
    Assignee: Depuy Spine, Inc.
    Inventors: Andrea Y. Thompson, Lin Shu Liu, Robert C. Spiro
  • Patent number: 6939562
    Abstract: Disclosed are bilayer matrices of a polysaccharide such as collagen (COL) and another polysaccharide such as hyaluronic acid (HA) with various COL/HA ratios. Each layer has a porous structure. These materials are useful for tissue regeneration, particularly when used with orthopedic implants and drug delivery.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: September 6, 2005
    Assignee: Depuy Acromed, Inc.
    Inventors: Robert C. Spiro, Lin Shu Liu
  • Patent number: 6936276
    Abstract: Disclosed are bilayer matrices of a polysaccharide such as collagen (COL) and another polysaccharide such as hyaluronic acid (HA) with various COL/HA ratios. Each layer has a porous structure. These materials are useful for tissue regeneration, particularly when used with orthopedic implants and drug delivery.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: August 30, 2005
    Assignee: Depuy Acromed, Inc.
    Inventors: Robert C. Spiro, Lin Shu Liu
  • Patent number: 6896904
    Abstract: Disclosed are bilayer matrices of a polysaccharide such as collagen (COL) and another polysaccharide such as hyaluronic acid (HA) with various COL/HA ratios. Each layer has a porous structure. These materials are useful for tissue regeneration, particularly when used with orthopedic implants and drug delivery.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: May 24, 2005
    Assignee: Depuy Spine, Inc.
    Inventors: Robert C. Spiro, Lin Shu Liu
  • Patent number: 6849606
    Abstract: A method and composition are provided for inducing or enhancing chondrogenesis in vivo or in vitro. The method is performed by exposing the cells in vitro or in vivo to an extracellular matrix comprising of type I collagen, type II collagen or a mixture of type I collagen or type II collagen and hyaluronate and further containing GDF-5.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: February 1, 2005
    Assignee: Depuy Spine, Inc.
    Inventors: Mohammad A. Heidaran, Robert C. Spiro, Robin Daverman, LinShu Liu
  • Publication number: 20040224026
    Abstract: Disclosed are bilayer matrices of a polysaccharide such as collagen (COL) and another polysaccharide such as hyaluronic acid (HA) with various COL/HA ratios. Each layer has a porous structure. These materials are useful for tissue regeneration, particularly when used with orthopedic implants and drug delivery.
    Type: Application
    Filed: June 14, 2004
    Publication date: November 11, 2004
    Applicant: DEPUY ACROMED, INC.
    Inventors: Robert C. Spiro, Lin Shu Liu
  • Publication number: 20040224022
    Abstract: Disclosed are bilayer matrices of a polysaccharide such as collagen (COL) and another polysaccharide such as hyaluronic acid (HA) with various COL/HA ratios. Each layer has a porous structure. These materials are useful for tissue regeneration, particularly when used with orthopedic implants and drug delivery.
    Type: Application
    Filed: June 14, 2004
    Publication date: November 11, 2004
    Applicant: DEPUY ACROMED, INC.
    Inventors: Robert C. Spiro, Lin Shu Liu
  • Publication number: 20040224027
    Abstract: Disclosed are bilayer matrices of a polysaccharide such as collagen (COL) and another polysaccharide such as hyaluronic acid (HA) with various COL/HA ratios. Each layer has a porous structure. These materials are useful for tissue regeneration, particularly when used with orthopedic implants and drug delivery.
    Type: Application
    Filed: June 14, 2004
    Publication date: November 11, 2004
    Applicant: DEPUY ACROMED, INC.
    Inventors: Robert C. Spiro, Lin Shu Liu
  • Patent number: 6773723
    Abstract: Disclosed are bilayer matrices of a polysaccharide such as collagen (COL) and another polysaccharide such as hyaluronic acid (HA) with various COL/HA ratios. Each layer has a porous structure. These materials are useful for tissue regeneration, particularly when used with orthopedic implants and drug delivery.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: August 10, 2004
    Assignee: Depuy Acromed, Inc.
    Inventors: Robert C. Spiro, Lin Shu Liu
  • Publication number: 20040077592
    Abstract: A carrier and a method for preparing it are provided for use in the delivery of therapeutic agents. A polysaccharide is reacted with an oxidizing agent to open sugar rings on the polysaccharide to form aldehyde groups. The aldehyde groups are reacted to form covalent oxime linkages with a second polysaccharide and each of the first and second polysaccharide is selected from the group consisting of hyaluronic acid, dextran, dextran sulfate, chondroitin sulfate, dermatan sulfate, keratan sulfate, heparan, heparan sulfate and alginate.
    Type: Application
    Filed: October 3, 2003
    Publication date: April 22, 2004
    Inventors: Andrea Y. Thompson, Lin Shu Liu, Robert C. Spiro
  • Patent number: 6683064
    Abstract: A carrier and a method for preparing it are provided for use in the delivery of therapeutic agents. A polysaccharide is reacted with an oxidizing agent to open sugar rings on the polysaccharide to form aldehyde groups. The aldehyde groups are reacted to form covalent oxime linkages with a second polysaccharide and each of the first and second polysaccharide is selected from the group consisting of hyaluronic acid, dextran, dextran sulfate, chondroitin sulfate, dermatan sulfate, keratan sulfate, heparan, heparan sulfate and alginate.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: January 27, 2004
    Assignee: DePuy Acromed, Inc.
    Inventors: Andrea Y. Thompson, Lin Shu Liu, Robert C. Spiro
  • Publication number: 20030207816
    Abstract: A method and composition are provided for inducing or enhancing chondrogenesis in vivo or in vitro. The method is performed by exposing the cells in vitro or in vivo to an extracellular matrix comprising of type I collagen, type II collagen or a mixture of type I collagen or type II collagen and hyaluronate and further containing GDF-5.
    Type: Application
    Filed: May 22, 2003
    Publication date: November 6, 2003
    Inventors: Mohammad A. Heidaran, Robert C. Spiro, Robin Daverman, LinShu Liu
  • Patent number: 6586406
    Abstract: A method and composition are provided for inducing or enhancing chondrogenesis in vivo or in vitro. The method is performed by exposing the cells in vitro or in vivo to an extracellular matrix comprising of type I collagen, type II collagen or a mixture of type I collagen or type II collagen and hyaluronate and further containing GDF-5.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: July 1, 2003
    Assignee: Depuy Acromed, Inc.
    Inventors: Mohammad A. Heidaran, Robert C. Spiro, Robin Daverman, LinShu Liu
  • Publication number: 20030012765
    Abstract: A carrier and a method for preparing it are provided for use in the delivery of therapeutic agents. A polysaccharide is reacted with an oxidizing agent to open sugar rings on the polysaccharide to form aldehyde groups. The aldehyde groups are reacted to form covalent oxime linkages with a second polysaccharide and each of the first and second polysaccharide is selected from the group consisting of hyaluronic acid, dextran, dextran sulfate, chondroitin sulfate, dermatan sulfate, keratan sulfate, heparan, heparan sulfate and alginate.
    Type: Application
    Filed: September 17, 2001
    Publication date: January 16, 2003
    Inventors: Andrea Y. Thompson, Lin Shu Liu, Robert C. Spiro
  • Publication number: 20020173448
    Abstract: A method and composition are provided for inducing or enhancing chondrogenesis in vivo or in vitro. The method is performed by exposing the cells in vitro or in vivo to an extracellular matrix comprising of type I collagen, type II collagen or a mixture of type I collagen or type II collagen and hyaluronate and further containing GDF-5.
    Type: Application
    Filed: October 14, 1999
    Publication date: November 21, 2002
    Inventors: MOHAMMAD A. HEIDARAN, ROBERT C. SPIRO, ROBIN DAVERMAN, LINSHU LIU