Patents by Inventor Debra R. Dawson

Debra R. Dawson 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).

  • Respiratory mask
    Patent number: D695886
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: December 17, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Debra R. Dawson, Seyed A. Angadjivand, Yonas Gebrewold, Nhat Ha T. Nguyen
  • Respiratory mask
    Patent number: D697199
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: January 7, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Seyed A. Angadjivand, Debra R. Dawson, Yonas Gebrewold, Nhat Ha T. Nguyen