Patents by Inventor Patrick H. Hyla

Patrick H. Hyla 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: 4909244
    Abstract: A wound dressing adapted for preventing pooling of wound exudate and for promoting healing comprises, in order:(a) a layer consisting essentially of hydrogel for placement on a wound, the hydrogel being characterized as being wound friendly and for absorbing and acting as a reservoir for wound exudate;(b) an intermediate layer disposed over said hydrogel layer. The intermediate layer comprises a tacky hydrogel or hydrocolloid adhesive, the tacky hydrogel or hydrocolloid adhesive characterized as having a greater absorbent capacity that does the hydrogel in the hydrogel layer; the underlying hydrogel layer is characterized as being more friendly and consequently more suitable for direct wound contact than the overlying adhesive hydrogel of greater absorbent capacity; the intermediate layer having sufficient moisture permeability therethrough to the surface of the dressing;(c) an outer oxygen- and vapor-permeable layer adapted for transpiration of at least a portion of fluid diffusing through the dressing.
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: March 20, 1990
    Assignee: The Kendall Company
    Inventors: Alan J. Quarfoot, Patrick H. Hyla, Donald Patience