Patents by Inventor William John Oliver

William John Oliver 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).

  • Louse repellent
    Patent number: 5696158
    Abstract: A pediculicidal composition is provided which is effective against both adult lice and lice eggs and additionally exhibits a strong repellent effect on adult lice. The active ingredient is piperonal which is generally used in solution at a concentration of at least 3%. An additional component of the composition is a film-forming material which is capable of holding the piperonal in contact with the host for at least two hours.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 9, 1997
    Assignee: Unicliffe Limited
    Inventor: William John Oliver