Patents by Inventor Nathan A. Underwood

Nathan A. Underwood 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).

  • Portable chair
    Patent number: 8720988
    Abstract: Certain embodiments described herein are directed to portable devices operative as high chairs. The devices are collapsible to facilitate easy set-up and take down and can be configured in many different manners. In certain embodiments, safety features may also be included in the devices.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: May 13, 2014
    Assignee: Tomfoolery Designs, LLC
    Inventors: Nathan A. Underwood, Christine F. Underwood