Patents by Inventor Douglas Paul Walling

Douglas Paul Walling 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).

  • Recloseable biosensor
    Patent number: 7063774
    Abstract: A biosensor is provided that comprises a substrate, a sample site positioned on the substrate, a cover coupled to the substrate, and biocide positioned between the substrate and the cover. The biosensor may also include desiccant. The cover is operative to selectively block access to the sample site. The cover includes a fixed end coupled to the substrate, an opposite free end, and a middle portion extending across the sample site. The middle portion is releasably and recloseably adhered to the substrate.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: June 20, 2006
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Raghbir Singh Bhullar, Douglas Paul Walling, Brian S. Hill
  • Recloseable biosensor
    Publication number: 20030047451
    Abstract: A biosensor is provided that comprises a substrate, a sample site positioned on the substrate, a cover coupled to the substrate, and biocide positioned between the substrate and the cover. The biosensor may also include desiccant. The cover is operative to selectively block access to the sample site. The cover includes a fixed end coupled to the substrate, an opposite free end, and a middle portion extending across the sample site. The middle portion is releasably and recloseably adhered to the substrate.
    Type: Application
    Filed: October 28, 2002
    Publication date: March 13, 2003
    Inventors: Raghbir Singh Bhullar, Douglas Paul Walling, Brian S. Hill
  • Recloseable biosensor
    Patent number: 6488828
    Abstract: A recloseable biosensor is provided that comprises a substrate, a sample site positioned on the substrate, and an openable and recloseable cover coupled to the substrate. The cover is operative to selectively block access to the sample site. The cover includes a fixed end coupled to the substrate, an opposite free end, and a middle portion extending across the sample site. The middle portion is releasably and recloseably adhered to the substrate.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: December 3, 2002
    Assignee: Roche Diagnostics Corporation
    Inventors: Raghbir Singh Bhullar, Douglas Paul Walling, Brian S. Hill
  • Biosensor
    Patent number: 6428664
    Abstract: A biosensor is provided in accordance with this invention. The biosensor includes a bottom section with an edge and a flange extending from the edge, a top section supported on the bottom section and having an edge and flange extending from the edge in alignment with the flange of the bottom section. The flanges of the top and bottom sections cooperate to form a capillary channel, and first and second electrodes. Additionally, the first electrode is positioned on the flange of the bottom section in the capillary channel and the second electrode is positioned on the flange of the top section in the capillary channel.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: August 6, 2002
    Assignee: Roche Diagnostics Corporation
    Inventors: Raghbir Singh Bhullar, Douglas Paul Walling