Patents by Inventor Daniel M. Koetters

Daniel M. Koetters 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).

  • Scintillation apparatus and method with surface-modified polyethylene sample vessels
    Patent number: 4754138
    Abstract: Liquid scintillation vials are disclosed formed from polyethylene or polypropylene and fluorinated on at least the inner surface. The advantageous physical properties and disposability of polyethylene or polypropylene are retained, while reducing permeation of organic solvents of the scintillation cocktail into or through the walls. Therefore problems of vial swelling, resulting in jamming of scintillation counters, are avoided.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: June 28, 1988
    Inventors: Harold Edelstein, Daniel M. Koetters