Patents Examined by Melissa Kaslow
  • Elastic-plastic element for filling root canals and a preparation method
    Patent number: 5925179
    Abstract: The invention relates to an elastic-plastic element comprising an isoprene-based matrix and at least one filler, the element being suitable for filling root canals of humans or animals and being characterised by calcium hydroxide, incorporated into the matrix, as filler. The invention relates also to a method of preparing the element according to the invention.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: July 20, 1999
    Assignee: Roeko GmbH + Co. Dentalerzeugnisse
    Inventor: Werner Mannschedel
  • Asphalt release agent for truck beds
    Patent number: 5888279
    Abstract: An asphalt release agent for preventing hot road asphalt, especially polymer-modified asphalt, from sticking to surfaces of delivery truck beds is provided. The release agent includes a water-based mixture of polycycloaliphatic amines and polyalkylene glycols. The release agent is applied onto the truck beds to create a slippery non-stick surface so that the road asphalt which comes in contact with such truck bed surfaces will not adhere.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: March 30, 1999
    Assignee: Morton International, Inc.
    Inventors: Steven Todd Salmonsen, Michael Dean Frailey, James Joseph Proctor, Lawrence Paul Krantz, Susan Marie Crooks