Patents by Inventor Elizabeth Grev

Elizabeth Grev 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 AND APPARATUS FOR KEYING INK SUPPLY CONTAINERS
    Publication number: 20020158943
    Abstract: Embodiments of the present invention comprise containers for consumable substances, such as ink, and the corresponding receiving stations, such as inkjet printers. The containers and receiving stations have mating keying features indicative of a characteristic of the consumable substance, such as the ink family. Embodiments of the mating features include protuberances with a T-shaped cross section, and corresponding T-shaped slots. Preferred embodiments of containers and receiving stations are disclosed having two keying features with four unique orientations per feature, for a total 16 key permutations.
    Type: Application
    Filed: April 30, 2001
    Publication date: October 31, 2002
    Inventors: Dan Powell, Rhonda L. Wilson, Elizabeth Grev, Gary Douglas Powell, Mark A. DeVries
  • Method and apparatus for keying ink supply containers
    Patent number: 6471333
    Abstract: Embodiments of the present invention comprise containers for consumable substances, such as ink, and the corresponding receiving stations, such as inkjet printers. The containers and receiving stations have mating keying features indicative of a characteristic of the consumable substance, such as the ink family. Embodiments of the mating features include protuberances with a T-shaped cross section, and corresponding T-shaped slots. Preferred embodiments of containers and receiving stations are disclosed having two keying features with four unique orientations per feature, for a total 16 key permutations.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: October 29, 2002
    Assignee: Hewlett-Packard Company
    Inventors: Dan Powell, Rhonda L. Wilson, Elizabeth Grev, Gary Douglas Powell