Patents by Inventor Don L. Robart

Don L. Robart 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).

  • Drinking straw for runners
    Patent number: 5335851
    Abstract: The invention described herein pertains generally to an improved design over conventional drinking straws and is particularly suitable for individuals, such as runners, who need to intake liquid refreshment while in motion.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: August 9, 1994
    Inventors: Jerry Adaska, Don L. Robart