Patents by Inventor Andrew Daniel O'Brien

Andrew Daniel O'Brien 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).

  • Weightlifting Barbell
    Publication number: 20150038302
    Abstract: A weightlifting barbell includes a steel shaft and sleeves constructed of engineered plastic (e.g., POM, Teflon®, Nylon, UHMW, and the like). The engineered-plastic sleeve is relatively light weight and provides impact strength suitable for executing weightlifting exercises.
    Type: Application
    Filed: August 4, 2014
    Publication date: February 5, 2015
    Inventor: Andrew Daniel O'Brien