Patents by Inventor VaradaRajan Ramaswami

VaradaRajan Ramaswami 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).

  • Method of preparing gas-filled microspheres using a lyophilized lipids
    Patent number: 5776429
    Abstract: Lyophilized lipid compositions, as well as methods for their preparation, are embodied by the present invention. Gas-filled microspheres prepared using the lyophilized lipid composition are particularly useful, for example, in ultrasonic imaging applications and in therapeutic drug delivery systems.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: July 7, 1998
    Assignee: ImaRx Pharmaceutical Corp.
    Inventors: Evan C. Unger, Thomas A. Fritz, Terry Matsunaga, VaradaRajan Ramaswami, David Yellowhair, Guanli Wu
  • Therapeutic drug delivery systems
    Patent number: 5770222
    Abstract: Therapeutic drug delivery systems comprising gas-filled microspheres comprising a therapeutic are described. Methods for employing such microspheres in therapeutic drug delivery applications are also provided. Drug delivery systems comprising gas-filled liposomes having encapsulated therein a drug are preferred. Methods of and apparatus for preparing such liposomes and methods for employing such liposomes in drug delivery applications are also disclosed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 23, 1998
    Assignee: ImaRx Pharmaceutical Corp.
    Inventors: Evan C. Unger, Thomas A. Fritz, Terry Matsunaga, VaradaRajan Ramaswami, David Yellowhair, Guanli Wu
  • Methods of preparing gas-filled liposomes
    Patent number: 5715824
    Abstract: Methods of and apparatus for preparing gas-filled liposomes are described. Gas-filled liposomes prepared by these methods are particularly useful, for example, in ultrasonic imaging applications and in therapeutic drug delivery systems.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 10, 1998
    Assignee: ImaRx Pharmaceutical Corp.
    Inventors: Evan C. Unger, Thomas A. Fritz, Terry Matsunaga, VaradaRajan Ramaswami, David Yellowhair, Guanli Wu
  • Method of preparing gas and gaseous precursor-filled microspheres
    Patent number: 5585112
    Abstract: Methods of and apparatus for preparing temperature activated gaseous precursor-filled liposomes are described. Gaseous precursor-filled liposomes prepared by these methods are particularly useful, for example, in ultrasonic imaging applications and in therapeutic drug delivery systems.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: December 17, 1996
    Assignee: ImaRx Pharmaceutical Corp.
    Inventors: Evan C. Unger, Thomas A. Fritz, Terry Matsunaga, VaradaRajan Ramaswami, David Yellowhair, Guanli Wu
  • Therapeutic drug delivery systems
    Patent number: 5580575
    Abstract: Therapeutic drug delivery systems comprising gas-filled microspheres comprising a therapeutic are described. Methods for employing such microspheres in therapeutic drug delivery applications are also provided. Drug delivery systems comprising gas-filled liposomes having encapsulated therein a drug are preferred. Methods of and apparatus for preparing such liposomes and methods for employing such liposomes in drug delivery applications are also disclosed.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: December 3, 1996
    Assignee: ImaRx Pharmaceutical Corp.
    Inventors: Evan C. Unger, Thomas A. Fritz, Terry Matsunaga, VaradaRajan Ramaswami, David Yellowhair, Guanli Wu
  • Therapeutic delivery systems related applications
    Patent number: 5542935
    Abstract: Therapeutic delivery systems comprising gaseous precursor-filled microspheres comprising a therapeutic are described. Methods for employing such microspheres in therapeutic delivery applications are also provided. Therapeutic delivery systems comprising gaseous precursor-filled liposomes having encapsulated therein a contrast agent or drug are preferred. Methods of and apparatus for preparing such liposomes and methods for employing such liposomes in therapeutic delivery applications are also disclosed.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: August 6, 1996
    Assignee: ImaR.sub.x Pharmaceutical Corp.
    Inventors: Evan C. Unger, Thomas A. Fritz, Terry Matsunaga, VaradaRajan Ramaswami, David Yellowhair, Guanli Wu
  • Methods of preparing gas-filled liposomes
    Patent number: 5469854
    Abstract: Methods of and apparatus for preparing gas-filled liposomes are described. Gas-filled liposomes prepared by these methods are particularly useful, for example, in ultrasonic imaging applications and in therapeutic drug delivery systems.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: November 28, 1995
    Assignee: ImaR.sub.x Pharmaceutical Corp.
    Inventors: Evan C. Unger, Thomas A. Fritz, Terry Matsunaga, VaradaRajan Ramaswami, David Yellowhair, Guanli Wu