Patents by Inventor John Patrick Gray

John Patrick Gray 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: 6700032
    Abstract: The invention relates to a bandage or wound dressing fabricated from a natural or synthetic film-forming material, such as a hydrophobic polymeric membrane, incorporating a therapeutically effective amount of one or more therapeutically active (e.g. anti-microbial) compounds, including Triclosan, within the matrix thereof. The incorporation of Triclosan provides continuous inherent control of the growth of a broad range of microorganisms, which promotes better wound care management and wound healing.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: March 2, 2004
    Assignee: Leatherite Pty Limited
    Inventor: John Patrick Gray
  • Patent number: 4086129
    Abstract: A process for accurately controlling the intrinsic viscosity of sulfite pulp at the termination of a digestion operation comprising predetermining the duration of digestion time required to obtain a given pulp intrinsic viscosity for a range of initial weight ratios of combined SO.sub.2 to wood, determining during the digestion operation the initial weight ratio of combined SO.sub.2 to wood by measuring the rate of change of absorbance in the digestion cooking liquor and terminating the digestion operation at a time corresponding to the predetermined time required to obtain the given pulp intrinsic viscosity at the aforesaid combined SO.sub.2 to wood ratio.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: April 25, 1978
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Romeo John Conca, John Patrick Gray, Tod Hunter Sloan