Patents by Inventor James A. Howland

James A. Howland 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).

  • Continuous flow endoscope with enlarged outflow channel
    Patent number: 5807240
    Abstract: An endoscope with a working element and a sheath assembly. The sheath assembly has an outer sheath with an outer tube, and inner sheath with an inner tube and an insulating tip. An inflow channel is formed inside the inner tube. An outflow channel is formed between the inner and outer tubes. The insulating tip is connected to the front of the inner tube and has two holes; one for inflow and one for outflow. The top side of the inner tube has a flat shape to form an enlarged outflow channel area between the flat top side and the outer tube.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: September 15, 1998
    Assignee: Circon Corporation
    Inventors: Richard P. Muller, James A. Howland