Patents by Inventor Jessica D. Posey-Dowty

Jessica D. Posey-Dowty 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).

  • Use of derivatives of chitin soluble in aqueous solutions for preventing adhesions
    Patent number: 5093319
    Abstract: A method for preventing adhesion between vital tissues includes the step of placing between the tissues a material made up of biodegradable derivatives of chitin which are soluble in aqueous solutions containing dilute acids such as acetic acid. This material has the advantage of requiring no reoperation for its removal since it would be degraded and absorbed after completing its function in vivo. These materials may be in the form of a visco-elastic fluid, a gel, a film or a membrane.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: March 3, 1992
    Assignee: Pfizer Hospital Products Group, Inc.
    Inventors: Paul A. Higham, Jessica D. Posey-Dowty
  • Use of xanthan gum for preventing adhesions
    Patent number: 4994277
    Abstract: A method for preventing adhesion utilizes a viscoelastic gel formed from xanthan gum. The gel is more viscous than blood and is soluble in aqueous solutions. The gel is placed between the tissues by a syringe. The method includes mixing the xanthan gum with either a saline solution or Tyrode's solution to form the gel.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: February 19, 1991
    Assignee: Pfizer Hospital Products Group, Inc.
    Inventors: Paul A. Higham, Jessica D. Posey-Dowty
  • Bone cement for sustained release of substances
    Patent number: 4900546
    Abstract: A bone cement is disclosed wherein the liquid component contains a therapeutic or diagnostic substance in combination with an emulsifying agent for said substance.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: February 13, 1990
    Assignee: Pfizer Hospital Products Group, Inc.
    Inventors: Jessica D. Posey-Dowty, Paul A. Higham, Nestor Arroyo, Casper F. Stark