Patents by Inventor Ramon A. Burns, Jr.

Ramon A. Burns, Jr. 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: 5550188
    Abstract: Pharmaceutically acceptable, non-immunogenic compositions are formed by covalently binding atelopeptide collagen to pharmaceutically pure, synthetic, hydrophilic polymers via specific types of chemical bonds to provide collagen/polymer conjugates. The atelopeptide collagen can be type I, type II or type III and may be fibrillar or non-fibrillar. The synthetic hydrophilic polymer may be polyethylene glycol and derivatives thereof having a weight average molecular weight over a range of from about 100 to about 20,000. The compositions may include other components such as liquid, pharmaceutically acceptable, carriers to form injectable formulations, and/or biologically active proteins such as growth factors. The collagen-polymer conjugates of the invention generally contain large amounts of water when formed. The conjugates can be dehydrated to form a relatively solid object.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 27, 1996
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5543441
    Abstract: Collagen, particularly atelopeptide collagen, exhibits improved handling characteristics when chemically conjugated and/or crosslinked with a synthetic hydrophilic polymer.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: August 6, 1996
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5523348
    Abstract: Collagen, particularly atelopeptide collagen, exhibits improved handling characteristics when chemically conjugated and/or crosslinked with a synthetic hydrophilic polymer.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: June 4, 1996
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5446091
    Abstract: Pharmaceutically acceptable, non-immunogenic compositions are formed by covalently binding atelopeptide collagen to pharmaceutically pure, synthetic, hydrophilic polymers via specific types of chemical bonds to provide collagen/polymer conjugates. The atelopeptide collagen can be type I, type II or type III and may be fibrillar or non-fibrillar. The synthetic hydrophilic polymer may be polyethylene glycol and derivatives thereof having a weight average molecular weight over a range of from about 100 to about 20,000. The compositions may include other components such as liquid, pharmaceutically acceptable, carriers to form injectable formulations, and/or biologically active proteins such as growth factors. The collagen-polymer conjugates of the invention generally contain large amounts of water when formed. The conjugates can be dehydrated to form a relatively solid object.
    Type: Grant
    Filed: January 5, 1995
    Date of Patent: August 29, 1995
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5413791
    Abstract: Pharmaceutically acceptable, non-immunogenic compositions are formed by covalently binding atelopeptide collagen to pharmaceutically pure, synthetic, hydrophilic polymers via specific types of chemical bonds to provide collagen/polymer conjugates. The atelopeptide collagen can be type I, type II or type III and may be fibrillar or non-fibrillar. The synthetic hydrophilic polymer may be polyethylene glycol and derivatives thereof having a weight average molecular weight over a range of from about 100 to about 20,000. The compositions may include other components such as liquid, pharmaceutically acceptable, carriers to form injectable formulations, and/or biologically active proteins such as growth factors. The collagen-polymer conjugates of the invention generally contain large amounts of water when formed. The conjugates can be dehydrated to form a relatively solid object.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: May 9, 1995
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5376375
    Abstract: Collagen, particularly atelopeptide collagen, exhibits improved handling characteristics when chemically conjugated and/or crosslinked with a synthetic hydrophilic polymer.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: December 27, 1994
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5328955
    Abstract: Pharmaceutically acceptable, non-immunogenic compositions are formed by covalently binding atelopeptide collagen to pharmaceutically pure, synthetic, hydrophilic polymers via specific types of chemical bonds to provide collagen/polymer conjugates. The atelopeptide collagen can be type I, type II or type III and may be fibrillar or non-fibrillar. The synthetic hydrophilic polymer may be polyethylene glycol and derivatives thereof having a weight average molecular weight over a range of from about 100 to about 20,000. The compositions may include other components such as liquid, pharmaceutically acceptable, carriers to form injectable formulations, and/or biologically active proteins such as growth factors. The collagen-polymer conjugates of the invention generally contain large amounts of water when formed. The conjugates can be dehydrated to form a relatively solid object.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: July 12, 1994
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5324775
    Abstract: Pharmaceutically acceptable, non-immunogenic compositions are formed by covalently binding biologically inactive, natural, biocompatible polymer to pharmaceutically pure, synthetic, hydrophilic polymers via specific types of chemical bonds to provide biocompatible conjugates. The synthetic hydrophilic polymer may be polyethylene glycol and derivatives thereof having a weight average molecular weight over a range of from about 100 to about 20,000. The compositions may include other components such as liquid, pharmaceutically acceptable, carriers to form injectable formulations, and/or biologically active proteins such as growth factors. The conjugates of the invention generally contain large amounts of water when formed. The conjugates can be dehydrated to form a relatively solid object. The dehydrated, solid object can be ground into particles which can be suspended in a non-aqueous fluid such as an oil and injected into a living (preferably human) being for the purpose of providing soft tissue augmentation.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: June 28, 1994
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5306500
    Abstract: Collagen, particularly atelopeptide collagen, exhibits improved handling characteristics when chemically conjugated and/or crosslinked with a synthetic hydrophilic polymer.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: April 26, 1994
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5304595
    Abstract: Collagen, particularly atelopeptide collagen, exhibits improved handling characteristics when chemically conjugated and/or crosslinked with a synthetic hydrophilic polymer.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: April 19, 1994
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5264214
    Abstract: Collagen, particularly atelopeptide collagen, exhibits improved handling characteristics when chemically conjugated and/or crosslinked with a synthetic hydrophilic polymer.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: November 23, 1993
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5162430
    Abstract: Collagen, particularly atelopeptide collagen, exhibits improved handling characteristics when chemically conjugated and/or crosslinked with a synthetic hydrophilic polymer.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: November 10, 1992
    Assignee: Collagen Corporation
    Inventors: Woonza Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
  • Patent number: 5028430
    Abstract: An implantable polymeric delivery system for the controlled and continuous administration of an LHRH agonist which comprises a silicone elastomer matrix in which is dispersed about 30 to about 42 weight percent of water-soluble particulate phase containing an LHRH analog or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: July 2, 1991
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Lynda M. Sanders, Ramon A. Burns, Jr.