Patents by Inventor Robert Franciszek Barwacz

Robert Franciszek Barwacz 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).

  • Corded hearing protective device and method of manufacturing the same
    Patent number: 9155661
    Abstract: A hearing protective device is provided including a first sound attenuating element, a second sound attenuating element, a flexible elongated member connecting the first sound attenuating element and the second sound attenuating element, and a knot formed in the flexible elongated member, the knot is untied by moving the first sound attenuating element in a direction away from second sound attenuating element.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: October 13, 2015
    Assignee: 3M Innovative Properties Company
    Inventor: Robert Franciszek Barwacz
  • Corded Hearing Protective Device And Method Of Manufacturing The Same
    Publication number: 20140196727
    Abstract: A hearing protective device is provided including a first sound attenuating element, a second sound attenuating element, a flexible elongated member connecting the first sound attenuating element and the second sound attenuating element, and a knot formed in the flexible elongated member, the knot is untied by moving the first sound attenuating element in a direction away from second sound attenuating element.
    Type: Application
    Filed: March 17, 2014
    Publication date: July 17, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Robert Franciszek Barwacz
  • Corded hearing protective device and method of manufacturing the same
    Patent number: 8708091
    Abstract: A hearing protective device is provided including a first sound attenuating element, a second sound attenuating element, a flexible elongated member connecting the first sound attenuating element and the second sound attenuating element, and a knot formed in the flexible elongated member, the knot is untied by moving the first sound attenuating element in a direction away from second sound attenuating element.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: April 29, 2014
    Assignee: 3M Innovative Properties Company
    Inventor: Robert Franciszek Barwacz
  • Corded hearing protective device and method of manufacturing the same
    Publication number: 20040079579
    Abstract: A hearing protective device is provided including a first sound attenuating element, a second sound attenuating element, a flexible elongated member connecting the first sound attenuating element and the second sound attenuating element, and a knot formed in the flexible elongated member, the knot is untied by moving the first sound attenuating element in a direction away from second sound attenuating element.
    Type: Application
    Filed: October 28, 2002
    Publication date: April 29, 2004
    Inventor: Robert Franciszek Barwacz