Patents by Inventor Kristian Damboulev

Kristian Damboulev 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).

  • Headphone
    Patent number: D801301
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: October 31, 2017
    Assignee: KAY TECHNOLOGIES, LLC
    Inventors: Kristian Damboulev, Joaquin Nicholas Herlein
  • Pair of headphones
    Patent number: D807322
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: January 9, 2018
    Assignee: KAY TECHNOLOGIES, LLC
    Inventors: Kristian Damboulev, Joaquin Nicholas Herlein
  • Pair of earbuds
    Patent number: D853358
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: July 9, 2019
    Assignee: KAY Technologies, LLC
    Inventors: Kristian Damboulev, Joaquin Nicholas Herlein