Patents by Inventor Jill R. Marra

Jill R. Marra 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).

  • Plastic fibers for improved concrete
    Patent number: 6844065
    Abstract: A monofilament plastic fiber useful in reducing plastic shrinkage cracking of concrete articles has been discovered. The fiber has a core that is a polyolefin that is at least partially enveloped by a sheath that is a copolymer of an olefin and at least one olefinically unsaturated comonomer selected from the group consisting of an unsaturated carboxylic acid, alkyl acrylate, alkyl methacrylate and vinyl ester.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: January 18, 2005
    Assignee: Dow Global Technologies, Inc.
    Inventors: Hari P. Reddy, Aleksander J. Pyzik, Ted A. Morgan, Sharon M. Allen, Jill R. Marra, Nicholas M. Shinkel
  • Plastic fibers for improved concrete
    Publication number: 20030134116
    Abstract: A monofilament plastic fiber useful in reducing plastic shrinkage cracking of concrete articles has been discovered. The fiber is comprised of a core that is a polyolefin that is at least partially enveloped by a sheath that is a copolymer of an olefin and at least one olefinically unsaturated comonomer selected from the group consisting of an unsaturated carboxylic acid, alkyl acrylate, alkyl methacrylate and vinyl ester.
    Type: Application
    Filed: December 23, 2002
    Publication date: July 17, 2003
    Inventors: Hari P. Reddy, Aleksander J. Pyzik, Ted A. Morgan, Sharon M. Allen, Jill R. Marra, Nicholas M. Shinkel
  • Hydrogenated monovinylidene aromatic polymer compositions
    Publication number: 20020002233
    Abstract: The present invention is directed to a composition comprising:
    Type: Application
    Filed: February 2, 2001
    Publication date: January 3, 2002
    Inventors: Stephen F. Hahn, Jill R. Marra