Patents by Inventor Philip Stephen Douglas

Philip Stephen Douglas 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).

  • Attachment for a vacuum cleaner
    Patent number: D922015
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: June 8, 2021
    Assignee: Dyson Technology Limited
    Inventors: Sean Alexander Polden, Jonathan Luke Kettle, Philip Stephen Douglas, Samuel Fraser Twist
  • Charging apparatus
    Patent number: D948429
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: April 12, 2022
    Assignee: Dyson Technology Limited
    Inventors: Philip Stephen Douglas, Simon Brian McNamee, Alexander Patrick Webster, Alexander Stuart Knox, Giles Ashbee, William Henry Kerr, Andrew Martin Mitchell, Nathan Geoffrey Dobbs
  • Robotic vacuum cleaner
    Patent number: D976507
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: January 24, 2023
    Assignee: Dyson Technology Limited
    Inventors: Philip Stephen Douglas, Simon Brian McNamee, Alexander Patrick Webster, Alexander Stuart Knox, Giles Ashbee, William Henry Kerr, Andrew Martin Mitchell, James Murray Orchard, Tom Briscoe
  • Filter for a vacuum cleaner
    Patent number: D979867
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: February 28, 2023
    Assignee: Dyson Technology Limited
    Inventors: Philip Stephen Douglas, Simon Brian McNamee, Alexander Patrick Webster, Alexander Stuart Knox, Giles Ashbee, William Henry Kerr, Andrew Martin Mitchell, Ketan Patel
  • Filter for a vacuum cleaner
    Patent number: D987925
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: May 30, 2023
    Assignee: Dyson Technology Limited
    Inventors: Philip Stephen Douglas, Simon Brian McNamee, Alexander Patrick Webster, Alexander Stuart Knox, Giles Ashbee, William Henry Kerr, Andrew Martin Mitchell, Ketan Patel