Patents by Inventor Alexandra Wolff

Alexandra Wolff 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).

  • Toy block
    Patent number: D754263
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: April 19, 2016
    Assignee: A Diva Difference, LLC
    Inventor: Alexandra Wolff
  • Developmental ball toy
    Patent number: D769375
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: October 18, 2016
    Assignee: A Diva Difference, LLC
    Inventor: Alexandra Wolff
  • Developmental ball toy
    Patent number: D769376
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: October 18, 2016
    Assignee: A Diva Difference, LLC
    Inventor: Alexandra Wolff
  • Developmental ball toy
    Patent number: D769377
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: October 18, 2016
    Assignee: A Diva Difference, LLC
    Inventor: Alexandra Wolff