Patents by Inventor Robert Hanninen

Robert Hanninen 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).

  • Repulpable tape
    Patent number: 4992501
    Abstract: Repulpable tapes, their composition and the process of making the same, which retain adhesion and tack over a wide range of humidity and temperature, are provided. The improved composition comprises the addition of 10 to 50 parts by weight of a partially to fully hydrogenated rosin and at least 1 part by weight of polyethylene glycol.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: February 12, 1991
    Assignee: The Kendall Company
    Inventors: Robert Hanninen, Shiro G. Takemoto, Mildred C. Richards