Patents by Inventor Frederick Stuart Grotrian

Frederick Stuart Grotrian 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).

  • HAIR STYLING APPLIANCE
    Publication number: 20220087391
    Abstract: The present invention relates to a hair straightening apparatus having two arms pivotably coupled together and a heating plate on a facing side of at least one arm. A central pack disposed between the first arm and the second arm and coupled to the hair styling apparatus at the hinge end and a biasing means adapted to support the central pack symmetrically between the first arm and the second arm.
    Type: Application
    Filed: November 20, 2019
    Publication date: March 24, 2022
    Applicant: Dyson Technology Limited
    Inventors: Richard David NICOLAOU, Frederick Stuart GROTRIAN, George Normile Elliot BAXTER, Nathan Haruna Waters IMHASLY, Rory William BEAUMONT, Stephen Benjamin COURTNEY, Maurizio BALLARATI, Alexander Edward HUGHES, Robert Mark Brett COULTON
  • HAIR STYLING APPLIANCE
    Publication number: 20210219688
    Abstract: The present invention relates to a hair straightening apparatus having two arms pivotably coupled together and a heating plate on a facing side of at least one arm. A flexible protective rim substantially surrounds the periphery of a hair contacting surface of each heating plate.
    Type: Application
    Filed: September 27, 2018
    Publication date: July 22, 2021
    Applicant: Dyson Technology Limited
    Inventors: Stephen Benjamin COURTNEY, Arran George SMITH, Richard David NICOLAOU, Frederick Stuart GROTRIAN
  • Hair straightener
    Patent number: D838907
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 22, 2019
    Assignee: Dyson Technology Limited
    Inventors: Adam James Bates, Alexander Stuart Knox, Andrea Ee-Va Lim, Robert Mark Brett Coulton, Frederick Stuart Grotrian, Oliver Andrew Charles Whittaker, Peter David Gammack, Samuel James Czerpak, Stephen Benjamin Courtney, Tom Vallance Hamilton Crawford
  • Hair straightener
    Patent number: D850002
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: May 28, 2019
    Assignee: Dyson Technology Limited
    Inventors: Adam James Bates, Alexander Stuart Knox, Andrea Ee-Va Lim, Robert Mark Brett Coulton, Frederick Stuart Grotrian, Oliver Andrew Charles Whittaker, Peter David Gammack, Samuel James Czerpak, Stephen Benjamin Courtney, Tom Vallance Hamilton Crawford
  • Hair straightener
    Patent number: D919178
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: May 11, 2021
    Assignee: Dyson Technology Limited
    Inventors: Alexander Stuart Knox, Stephen Benjamin Courtney, Andrew Drummond Flynn, Richard David Nicolaou, Frederick Stuart Grotrian, Samuel James Czerpak, Ian Dwight Sansom, Leanne Joyce Garner
  • Hair straightener
    Patent number: D919179
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: May 11, 2021
    Assignee: Dyson Technology Limited
    Inventors: Alexander Stuart Knox, Stephen Benjamin Courtney, Andrew Drummond Flynn, Richard David Nicolaou, Frederick Stuart Grotrian, Samuel James Czerpak, Ian Dwight Sansom
  • Hair straightener
    Patent number: D919180
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: May 11, 2021
    Assignee: Dyson Technology Limited
    Inventors: Alexander Stuart Knox, Stephen Benjamin Courtney, Andrew Drummond Flynn, Richard David Nicolaou, Frederick Stuart Grotrian, Samuel James Czerpak, Ian Dwight Sansom