Patents by Inventor Paul J. T. Missel

Paul J. T. Missel 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).

  • Use of carrageenans in topical ophthalmic compositions
    Patent number: 5403841
    Abstract: Topical ophthalmic compositions of carrageenans which are administrable as a drop but which become more viscous or gel upon instillation in the eye are disclosed. Methods for use of the compositions as topical ophthalmic vehicles for pharmaceutically active agents, and alone as lubricants or tear supplements, are also disclosed.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: April 4, 1995
    Assignee: Alcon Laboratories, Inc.
    Inventors: John C. Lang, Jamieson C. Keister, Paul J. T. Missel, Dimitri J. Stancioff
  • Use of combinations gelling polysaccharides and finely divided drug carrier substrates in topical ophthalmic compositions
    Patent number: 5212162
    Abstract: Ophthalmic compositions comprising combinations of gelling polysaccharides and finely-divided drug carrier substrates which become relatively more viscous on contact with the eye are disclosed. These ophthalmic compositions are both comfortable and long-lasting Ophthalmic compositions further comprising a pharmaceutically active drug are also disclosed, as are methods of use.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: May 18, 1993
    Assignee: Alcon Laboratories, Inc.
    Inventors: Paul J. T. Missel, John C. Lang, Rajni Jani