Patents by Inventor David Lanqvist

David Lanqvist 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).

  • Respiration mask with filter holder and parts thereof
    Patent number: D791932
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: July 11, 2017
    Assignee: Sundström Safety Aktiebolag
    Inventors: Niclas Rydh, David Lanqvist
  • Helmet liner
    Patent number: D959757
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: August 2, 2022
    Assignee: SUNDSTRÖM SAFETY AKTIEBOLAG
    Inventor: David Lanqvist