Patents by Inventor David Lee Pratley

David Lee Pratley 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).

  • Ear defender
    Patent number: D789615
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: June 13, 2017
    Assignee: JSP LIMITED
    Inventor: David Lee Pratley
  • Removable cover for a respiratory mask
    Patent number: D803389
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: November 21, 2017
    Assignee: JSP LTD
    Inventors: David Lee Pratley, Richard James Fleming, Tom Malloy
  • Ear defender
    Patent number: D805697
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: December 19, 2017
    Assignee: JSP LIMITED
    Inventor: David Lee Pratley
  • Respiratory mask with removable cover
    Patent number: D810276
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: February 13, 2018
    Assignee: JSP LTD
    Inventors: David Lee Pratley, Richard James Fleming, Tom Malloy
  • Ear defender
    Patent number: D821653
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: June 26, 2018
    Assignee: JSP Limited
    Inventor: David Lee Pratley
  • Helmet strap
    Patent number: D871680
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: December 31, 2019
    Assignee: JSP LIMITED
    Inventors: Tom Malloy, David Lee Pratley
  • Helmet shell
    Patent number: D897045
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: September 22, 2020
    Assignee: JSP LIMITED
    Inventors: Tom Malloy, David Lee Pratley
  • Helmet shell
    Patent number: D897047
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: September 22, 2020
    Assignee: JSP LIMITED
    Inventors: Tom Malloy, David Lee Pratley
  • Helmet strap
    Patent number: D921994
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: June 8, 2021
    Assignee: JSP LIMITED
    Inventors: Tom Malloy, David Lee Pratley