Patents by Inventor Kerstin Castle

Kerstin Castle 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).

  • MAT
    Publication number: 20120124740
    Abstract: The present invention relates to mats, and in particular, to floor play mats for babies and children. The invention extends to uses of the play mat, and to methods of manufacturing such mats.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 24, 2012
    Inventor: Kerstin Castle