Patents by Inventor Herb M. Trenka

Herb M. Trenka 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).

  • Microsurgical knife
    Patent number: 4414974
    Abstract: A disposable, or one-time-use microsurgical knife has a slidable shroud that can be moved into a forward position to protect the blade, and can be moved rearwardly to allow use of the knife. The shroud, as well as other parts of the knife, are made of plastic, and a phosphorescent material is included to render the knife luminescent during steps taken in a darkened operating room. The extremely sharp razor chip blade includes a shank selectively wedged into the knife body so blades are interchangeable.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: November 15, 1983
    Assignee: General Conveyors Limited
    Inventors: Robert S. Dotson, W. George Richeson, Herb M. Trenka