Patents by Inventor John E. Nygard

John E. Nygard 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).

  • Method for sterilizing
    Patent number: 5496302
    Abstract: Methods are disclosed for sterilizing a selected portion of a product and for assembling a sterile product from two or more parts which can not be sterilized with the same form of sterilization. A sterile product produced by these methods is also disclosed. The method for sterilizing may include sterilizing a selected portion of the product by exposing the selected portion to an electron beam, while shielding the remainder of the product from the radiation of the electron beam. The method of assembling a sterile product from two or more component parts may include the steps of sterilizing the first part of the product, isolating a portion of the first part from the remainder of the first part, attaching the second part to the isolated portion of the first part, and exposing the isolated portion to a form of sterilization which is deleterious to the remainder of the first part, while shielding the remainder of the first part from such form of sterilization.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: March 5, 1996
    Assignee: Baxter International Inc.
    Inventors: Billy W. Minshall, John E. Nygard, Kwame Sintim-Damoa, Richard Giesler, Archie Woodworth, Kailash Purohit
  • Sterile product and method for sterilizing and assembling such product
    Patent number: 5009654
    Abstract: Methods are disclosed for sterilizing a selected portion of a product and for assembling a sterile product from two or more parts which can not be sterilized with the same form of sterilization. A sterile product produced by these methods is also disclosed. The method for sterilizing may include sterilizing a selected portion of the product by exposing the selected portion to an electron beam, while shielding the remainder of the product from the radiation of the electron beam. The method of assembling a sterile product from two or more component parts may include the steps of sterilizing the first part of the product, isolating a portion of the first part from the remainder of the first part, attaching the second part to the isolated portion of the first part, and exposing the isolated portion to a form of sterilization which is deleterious to the remainder of the first part, while shielding the remainder of the first part from such form of sterilization.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: April 23, 1991
    Assignee: Baxter International Inc.
    Inventors: Billy W. Minshall, Kailash Purohit, John E. Nygard, Kwame Sintim-Damoa, Richard Giesler, Archie Woodworth