Patents by Inventor Christopher Welham

Christopher Welham 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).

  • Cup insulation sleeve
    Patent number: D853202
    Type: Grant
    Filed: September 23, 2017
    Date of Patent: July 9, 2019
    Assignee: 7252502 Manitoba Ltd.
    Inventor: Christopher Welham