Patents by Inventor Eugen C. Buican

Eugen C. Buican 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).

  • Lock box
    Patent number: D795675
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: August 29, 2017
    Assignee: Knox Associates, Inc.
    Inventors: Mark M. Howse, Michael J. Weiland, Eugen C. Buican
  • Electronic key
    Patent number: D881677
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: April 21, 2020
    Assignee: KNOX ASSOCIATES, INC.
    Inventors: Michael J. Weiland, James McBride, Eugen C. Buican, Mark M. Howse
  • Electronic key
    Patent number: D1015119
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: February 20, 2024
    Assignee: Knox Associates, Inc.
    Inventors: Michael J. Weiland, James McBride, Eugen C Buican, Mark M. Howse