Patents by Inventor Earl Thomas Hackett

Earl Thomas Hackett 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).

  • Barrier test apparatus and method
    Patent number: 6688160
    Abstract: An apparatus and method for measuring the barrier properties of porous materials particularly at low flow rates through the porous materials with the capability to separate flow through a test sample from flow through a particle counting means. The invention approximates real world situations and provides significant advantages in time and cost, especially in medical applications.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: February 10, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Earl Thomas Hackett, Jr.
  • Barrier test apparatus and method
    Publication number: 20030150255
    Abstract: An apparatus and method for measuring the barrier properties of porous materials particularly at low flow rates through the porous materials with the capability to separate flow through a test sample from flow through a particle counting means. The invention approximates real world situations and provides significant advantages in time and cost, especially in medical applications.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 14, 2003
    Inventor: Earl Thomas Hackett
  • Barrier test apparatus and method
    Patent number: 6532797
    Abstract: An apparatus and method for measuring the barrier properties of porous materials particularly at low flow rates through the porous materials with the capability to separate flow through a test sample from flow through a particle counting means. The invention approximates real world situations and provides significant advantages in time and cost, especially in medical applications.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: March 18, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Earl Thomas Hackett, Jr.