Patents by Inventor Roger J. Trudell

Roger J. Trudell 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).

  • Lacrimal irrigating cannula
    Patent number: 5593393
    Abstract: A lacrimal cannula for insertion, dilation, probing, and irrigation of the lacrimal drainage system, starting with a small diameter distal end to facilitate entry into the lacrimal puncta, tapering in size to a larger diameter serving to seal the puncta as fluid is forced through the device.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: January 14, 1997
    Inventors: Roger J. Trudell, Robert E. Prouty