Patents by Inventor Howard F. Evans

Howard F. Evans 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).

  • Nasopharyngeal speculum
    Patent number: 3976054
    Abstract: An improved nasopharyngeal speculum is disclosed. The subject speculum is especially designed to permit exposure of and provide a direct line of sight to the nasopharynx and thereby serve to facilitate the performance of medical procedures such as adenoidectomies and subsequent hemostasis.
    Type: Grant
    Filed: January 20, 1975
    Date of Patent: August 24, 1976
    Inventor: Howard F. Evans