Patents by Inventor Donald C. Schreer

Donald C. Schreer 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).

  • Electric liquid vaporizer
    Patent number: D440291
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: April 10, 2001
    Assignee: The Dial Corporation
    Inventors: Christopher J. Wolpert, Donald C. Schreer, Carl Triplett, Kristopher J. Stathakis, Mengtao Pete He, Debra Park
  • Electric liquid vaporizer
    Patent number: D449101
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: October 9, 2001
    Assignee: The Dial Corporation
    Inventors: Christopher J. Wolpert, Donald C. Schreer