Patents by Inventor Joseph E. Tungol

Joseph E. Tungol 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).

  • Dispenser for dispersing sterile solutions
    Patent number: 5238153
    Abstract: A dispenser for dispensing sterile solution which includes a valve to control the dispensing of the sterile solution from a container. The valve comprises a solution outlet and an air inlet opening having an associated filter membrane to filter the air passing into the container. When dispensing the solution, force applied to the container causes the solution outlet to open and prevents access of the solution to the air inlet opening. When the force is relieved, a partial vacuum is formed in the container which causes the solution outlet to close. Air is then drawn into the container via the air inlet opening and through the filter membrane.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: August 24, 1993
    Assignee: Pilkington Visioncare Inc.
    Inventors: Bradley E. Castillo, Joseph E. Tungol, Edgar M. Litzaw
  • Toothbrush package
    Patent number: D425414
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: May 23, 2000
    Assignee: Gillette Canada Inc.
    Inventors: Bradley William Baker, Bradley Castillo, Joseph E. Tungol, Jay McCulloch