Patents by Inventor Christopher Lee Daum

Christopher Lee Daum 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).

  • Self-heating/self-cooling package
    Patent number: 6644383
    Abstract: A flexible temperature changing package for heating or cooling a contained item or product including a temperature changing element adjacent to the item and an offset activation point that prevents damage to item.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: November 11, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Gary Curtis Joseph, Christopher Lee Daum
  • Self-heating/self-cooling package
    Publication number: 20030000517
    Abstract: A flexible temperature changing package for heating or cooling a contained item or product including a temperature changing element adjacent to the item and an offset activation point that prevents damage to item.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 2, 2003
    Inventors: Gary Curtis Joseph, Christopher Lee Daum