Patents by Inventor David R. J. Green

David R. J. Green 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).

  • Sterilizable lubricant
    Patent number: 5236609
    Abstract: A lubricant gel formulation for surgical and external applications is described. The gel comprises an acrylic acid polymer, a hydroxy compound having at least two hydroxy groups and water. The gel composition exhibits exceptional viscosity stability through two cycles of gamma radiation sterilization. The gel formulation can be manufactured and packaged in sealed containers and radiation sterilized without significant decrease in rheological properties.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: August 17, 1993
    Assignee: Chas F Thackray Limited
    Inventors: Rory J. M. Smith, David R. J. Green