Patents by Inventor Anna M. Christina

Anna M. Christina 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).

  • Prophylactic safety device
    Patent number: 5010871
    Abstract: An improved prophylactic device is disclosed. The attachment of a sealing device prevents possible leakage and slippage while the proper dimensioning of the attached sealing device promotes safety along with improved performance.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: April 30, 1991
    Inventors: Louis J. Christina, Anna M. Christina