Patents by Inventor Louis W. Mead

Louis W. Mead 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).

  • Test device and method for its use
    Patent number: 4361537
    Abstract: A test device for determining a characteristic of a sample, particularly for determining substances in fluid samples. The device comprises a strip element which is composed of a material capable of transporting a developing fluid therealong by capillarity and which has a portion at a predetermined location on the strip element for receiving the test sample and portions at predetermined locations on the strip element incorporated with reagent means for providing a detectable response sensitive to the characteristic under determination. The beginning end portion of the strip element is immersed in the developing fluid which, as a result, traverses the length on the strip element, thereby promoting appropriate contact between the test sample and the reagent means resulting in the disposition of a detectable response at a predetermined location on the strip element, which response is a function of the characteristic under determination.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: November 30, 1982
    Assignee: Thyroid Diagnostics, Inc.
    Inventors: Marshall E. Deutsch, Louis W. Mead
  • Test device and method for its use
    Patent number: 4235601
    Abstract: Test device for determining a characteristic of a sample, particularly for determining substances in fluid samples. The device comprises a strip element which is composed of a material capable of transporting a developing fluid therealong by capillarity and which has a portion at a predetermined location on the strip element for receiving the test sample and portions at predetermined locations on the strip element incorporated with reagent means for providing a detectable response sensitive to the characteristic under determination. The beginning end portion of the strip element is immersed in the developing fluid which, as a result, traverses the length of the strip element, thereby promoting appropriate contact between the test sample and the reagent means resulting in the disposition of a detectable response at a predetermined location on the strip element, which response is a function of the characteristic under determination.
    Type: Grant
    Filed: January 12, 1979
    Date of Patent: November 25, 1980
    Assignee: Thyroid Diagnostics, Inc.
    Inventors: Marshall E. Deutsch, Louis W. Mead
  • Test device
    Patent number: 4094647
    Abstract: Test device for determining a characteristic of a sample, particularly for determining substances in fluid samples. The device comprises a strip element which is composed of a material capable of transporting a developing fluid therealong by capillarity and which has a portion at a predetermined location on the strip element for receiving the test sample and portions at predetermined locations on the strip element incorporated with reagent means for providing a detectable response sensitive to the characteristic under determination. The beginning end portion of the strip element is immersed in the developing fluid which, as a result, traverses the length of the strip element, thereby promoting appropriate contact between the test sample and the reagent means resulting in the disposition of a detectable response at a predetermined location on the strip element, which response is a function of the characteristic under determination.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: June 13, 1978
    Assignee: Thyroid Diagnostics, Inc.
    Inventors: Marshall E. Deutsch, Louis W. Mead