Patents by Inventor Peter A. Wachtel

Peter A. Wachtel 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).

  • Methods of preparing polyurethane adhesives, adhesives produced thereby and medical devices employing the same
    Patent number: 6359100
    Abstract: A polyurethane adhesive composition preferably having pressure sensitive characteristics that is non-cytotoxic and methods of making the same which is especially useful for medical applications such as ostomy and wound care.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: March 19, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Fritz Hostettler, Peter Wachtel
  • Polyurethane hydrogel contact lens
    Publication number: 20020032297
    Abstract: A prepolymer is prepared by reacting a mixture containing (a) at least one multifunctional compound, (b) at least one diisocyanate, and (c) at least one diol. The diol has a weight average molecular weight of at most 6000. The prepolymer, when reacted with an excess of water, forms a hydrogel polymer. The mixture of the prepolymer and water may be reaction molded, and used to form a contact lens.
    Type: Application
    Filed: June 26, 2001
    Publication date: March 14, 2002
    Inventors: Gregory Carlson, Edgar Allan Blair, Peter Wachtel, Michael Quinn, Joshua Wallach