Patents by Inventor Ericka Grettenberger

Ericka Grettenberger 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).

  • Zipper pull assist device
    Patent number: D694152
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: November 26, 2013
    Inventor: Ericka Grettenberger
  • Extendable zipper pull assist device
    Patent number: D719060
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: December 9, 2014
    Inventor: Ericka Grettenberger