Patents Assigned to Black Donuts Engineering Oy
  • Tire tread
    Patent number: D786773
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 16, 2017
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Marko Christer Johannes Ylitolva
  • Tire tread
    Patent number: D787425
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 23, 2017
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Henri Sakari Kossi, Jouni Juhani Raatikainen, Mikko Valtteri Sironen
  • Tire tread
    Patent number: D790439
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: June 27, 2017
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Mikko Tapani Väänänen
  • Tire tread
    Patent number: D792835
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: July 25, 2017
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Mikko Tapani Väänänen
  • Tire tread
    Patent number: D797653
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: September 19, 2017
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Mikko Valtteri Sironen
  • Tire tread
    Patent number: D808894
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 30, 2018
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Henri Sakari Kossi, Jouni Juhani Raatikainen, Mikko Tapani Väänänen
  • Tire tread
    Patent number: D811990
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: March 6, 2018
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Mikko Valtteri Sironen
  • Tire tread
    Patent number: D812548
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: March 13, 2018
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Mikko Valtteri Sironen
  • Tire tread
    Patent number: D816591
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: May 1, 2018
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Henri Sakari Kossi, Jouni Juhani Raatikainen, Mikko Valtteri Sironen
  • Tire tread
    Patent number: D817262
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: May 8, 2018
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Marko Christer Johannes Ylitolva
  • Tire tread
    Patent number: D847084
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: April 30, 2019
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Henri Sakari Kossi, Jouni Juhani Raatikainen, Mikko Tapani Väänänen
  • Tire tread
    Patent number: D848934
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: May 21, 2019
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Mikko Valtteri Sironen
  • Tire tread
    Patent number: D848935
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: May 21, 2019
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Henri Sakari Kossi, Jouni Juhani Raatikainen, Marko Christer Johannes Ylitolva
  • Tire tread
    Patent number: D853314
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: July 9, 2019
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Mikko Tapani Väänänen
  • Tire tread
    Patent number: D853315
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: July 9, 2019
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Mikko Valtteri Sironen
  • Tire tread
    Patent number: D859290
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: September 10, 2019
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Marko Christer Johannes Ylitolva
  • Tire tread
    Patent number: D864096
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: October 22, 2019
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Jouni Juhani Raatikainen, Henri Sakari Kossi, Mikko Valtteri Sironen
  • Tire tread
    Patent number: D864097
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: October 22, 2019
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Henri Sakari Kossi, Jouni Juhani Raatikainen, Mikko Tapani Väänänen
  • Tire tread
    Patent number: D864098
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: October 22, 2019
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Henri Sakari Kossi, Jouni Juhani Raatikainen, Marko Christer Johannes Ylitolva
  • Tire tread
    Patent number: D932988
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: October 12, 2021
    Assignee: BLACK DONUTS ENGINEERING OY
    Inventors: Henri Sakari Kossi, Mikko Valtteri Sironen