Patents by Inventor Glenn D. Stafford

Glenn D. Stafford 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).

  • Polymeric quaternary ammonium compounds with vicinal hydroxy groups
    Patent number: 8431751
    Abstract: New polymeric quaternary ammonium compounds with vicinal hydroxyl groups are disclosed. These compounds are useful as disinfectants in contact lens care compositions and/or as preservatives in ophthalmic compositions. Compositions containing these compounds are also disclosed. These compositions are especially useful for disinfecting/cleaning contact lenses.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: April 30, 2013
    Assignee: Alcon Research, Ltd.
    Inventors: Ernesto J. Castillo, Hwang-Hsing Chen, Masood A. Chowhan, Glenn D. Stafford, Jr.
  • TOPICAL SOLUTION FORMULATIONS CONTAINING A CORTICOSTEROID AND A CYCLODEXTRIN
    Publication number: 20120053161
    Abstract: Solution formulations containing a corticosteroid, cyclodextrin, and xanthan gum are disclosed. The formulations are intended for topical application to the eye, ear, or nose.
    Type: Application
    Filed: July 28, 2009
    Publication date: March 1, 2012
    Applicant: Novartis AG
    Inventors: Ernesto J. Castillo, Huixiang Zhang, Glenn D. Stafford, Wesley Wehsin Han
  • TOPICAL SOLUTION FORMULATIONS CONTAINING A CORTICOSTEROID AND A CYCLODEXTRIN
    Publication number: 20090215735
    Abstract: Solution formulations containing a corticosteroid, cyclodextrin, and xanthan gum are disclosed. The formulations are intended for topical application to the eye, ear, or nose.
    Type: Application
    Filed: May 8, 2009
    Publication date: August 27, 2009
    Applicant: Alcon, Inc.
    Inventors: Ernesto J. Castillo, Huixiang Zhang, Glenn D. Stafford, JR., Wisley Wehsin Han