Patents by Inventor Edward J. Knopf

Edward J. Knopf 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).

  • Patent number: 4805801
    Abstract: Fluted coffee or other beverage filters, generally formed of paper, or paperboard, are so stacked in containers in which they are sold that it is not easy to lift off and remove a single filter paper for application. The practice has been to transfer the filters to a dispenser therefor, but generally such dispensers are fabricated of a polymer material, are reasonably expensive, and are not for disposable usage, or ease of application. Herein, the container and beverage filter dispenser of this invention may be solid and marketed with a supply of filters, and thrown away after application and usage. In addition, the invention contemplates a blank from which the container, and spring for biasing the filters upwardly within the container, may be fabricated.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: February 21, 1989
    Inventor: Edward J. Knopf