Patents by Inventor Lawrie D. Coote

Lawrie D. Coote 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).

  • Frame that supports an exhalation valve filter
    Patent number: D550837
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: September 11, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Derek A. Parkin, Chris W. Scott, Abigail L. Curtis, Lawrie D. Coote
  • Exhalation valve filter
    Patent number: D575390
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: August 19, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Chris W. Scott, Derek A. Parkin, Abigail L. Curtis, Lawrie D. Coote