Patents by Inventor Craig E. Hamer

Craig E. Hamer 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).

  • Process for the packaged polymerization of olefinic monomers
    Patent number: 5902654
    Abstract: A process that involves the packaged polymerization of olefinic monomer(s) and catalyst systems comprising a transition metal species that mediates the polymerization of the monomer(s) is disclosed. This process provides a way to use the resultant polymer without extensive further processing.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: May 11, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert S. Davidson, Brook F. Duerr, Allen R. Siedle, Katherine A. Brown, Craig E. Hamer
  • Methods of making packaged viscoelastic compositions
    Patent number: 5804610
    Abstract: Methods for preparing viscoelastic compositions (e.g., adhesives such as hot melt adhesives) in which a pre-viscoelastic composition (e.g., a pre-adhesive composition) is combined with a packaging material and then polymerized by transmissive energy.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: September 8, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Craig E. Hamer, John D. Moon, Thomas A. Kotnour