Patents by Inventor Bryn Hird

Bryn Hird 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).

  • Absorbent foam materials for aqueous fluids made from high internal phase emulsions having very high water-to-oil ratios
    Patent number: 5650222
    Abstract: Low density collapsed absorbent foams materials that, upon contact with aqueous fluids, in particular urine, can expand and absorb these fluids. These low density foams typically have an expanded thickness from about 6 to about 10 times the thickness of the foams in their collapsed state. These low density foams are made by polymerizing high internal phase emulsions (HIPEs) where the volume to weight ratio of the water phase to the oil phase is in the range of from about 55:1 to about 100:1.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: July 22, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Allen DesMarais, Keith Joseph Stone, John Collins Dyer, Bryn Hird, Stephen Allen Goldman, Paul Seiden
  • Absorbent foams made from high internal phase emulsions useful for acquiring and distributing aqueous fluids
    Patent number: 5563179
    Abstract: Absorbent foams materials that are capable of acquiring and distributing aqueous fluids, especially discharged body fluids such as urine. These absorbent foams combine relatively high capillary absorption pressures and capacity-per-weight properties that allow them to acquire fluid, with or without the aid of gravity. These absorbent foams also give up this fluid efficiently to higher absorption pressure storage materials, including foam-based absorbent fluid storage components, without collapsing. These absorbent foams are made by polymerizing high internal phase emulsions (HIPEs).
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: October 8, 1996
    Assignee: The Proctor & Gamble Company
    Inventors: Keith J. Stone, Thomas A. DesMarais, John C. Dyer, Bryn Hird, Gary D. La Von, Stephen A. Goldman, Michelle R. Peace, Paul Seiden