Patents by Inventor Lawrence D. Mandt

Lawrence D. Mandt 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).

  • Contact lens disinfecting and preserving solution
    Patent number: 4444785
    Abstract: A disinfecting and/or preserving solution for contact lenses is disclosed. The solution is an aqueous solution containing 0.00001 to 0.1 weight percent of 1,5-pentanedial, optionally together with up to 0.004 weight percent of thimerosal or other enhancers and optional buffers and the like.
    Type: Grant
    Filed: January 19, 1983
    Date of Patent: April 24, 1984
    Assignee: Bausch & Lomb Incorporated
    Inventors: Lawrence D. Mandt, Thomas M. Riedhammer, Francis X. Smith
  • Contact lens disinfecting and preserving solution
    Patent number: 4381314
    Abstract: A disinfecting and/or preserving solution for contact lenses is disclosed. The solution is an aqueous solution containing 0.00001 to 0.1 weight percent of 1,5-pentanedial, optionally together with up to 0.004 weight percent of thimerosal or other enhancers and optional buffers and the like.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: April 26, 1983
    Assignee: Bausch & Lomb Incorporated
    Inventors: Lawrence D. Mandt, Thomas M. Riedhammer, Francis X. Smith