Patents by Inventor Dina M. Haines

Dina M. Haines 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).

  • Dispersible aramid pulp
    Patent number: 5171402
    Abstract: A process is disclosed for making a compacted, redispersible, aramid pulp fiber product wherein aramid pulp is opened using the forces of a turbulent air grinding mill and then the opened pulp is compacted to the extent desired for shipping.
    Type: Grant
    Filed: June 6, 1991
    Date of Patent: December 15, 1992
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Dina M. Haines, Thomas F. Schuler
  • Dispersible aramid pulp
    Patent number: 5084136
    Abstract: A process is disclosed for making a compacted, redispersible, aramid pulp fiber product wherein aramid pulp is opened using the forces of a turbulent air grinding mill and then the opened pulp is compacted to the extent desired for shipping.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: January 28, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Dina M. Haines, Thomas F. Schuler