Patents by Inventor Paul Douglas Walling

Paul Douglas 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).

  • Patent number: 8775095
    Abstract: Methods for decentralized monitoring of a progression of a diabetic state of a patient include contemporaneously obtaining an initial set of venous blood samples and an initial set of capillary blood samples after a standardized metabolic challenge from the patient in a centralized setting, wherein the diabetic state is diagnosed using the initial set of venous blood samples and a first test baseline is established by correlating the initial set of capillary blood samples with the initial set of venous blood samples, implementing a therapy, performing decentralized testing after reaching a target event, wherein a status test is obtained from a status set of capillary blood samples obtained from the patient after a subsequent standardized metabolic challenge, and comparing the status test with the first test baseline to determine an effectiveness of the therapy.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: July 8, 2014
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Paul Douglas Walling, Nigel Surridge
  • Patent number: 8551308
    Abstract: An electrochemical biosensor with electrode elements that possess smooth, high-quality edges. These smooth edges define gaps between electrodes, electrode traces and contact pads. Due to the remarkable edge smoothness achieved with the present invention, the gaps can be quite small, which provides marked advantages in terms of test accuracy, speed and the number of different functionalities that can be packed into a single biosensor. Further, the present invention provides a novel biosensor production method in which entire electrode patterns for the inventive biosensors can be formed all at one, in nanoseconds—without regard to the complexity of the electrode patterns or the amount of conductive material that must be ablated to form them.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: October 8, 2013
    Assignees: Roche Diagnostics Operations, Inc., Roche Operations Ltd.
    Inventors: Raghbir S. Bhullar, Eric R. Diebold, Brian S. Hill, Nigel Surridge, Paul Douglas Walling
  • Patent number: 8506775
    Abstract: A system for testing for analytes in a sample of biological fluid includes a test strip that defines a cavity for receiving the sample. At least two sets of electrodes are adjacent the sample cavity, including one for measuring one property of the sample, and another for measuring one or more other properties of the sample, such as temperature and/or the presence or magnitude of confounding variables. The measurements are combined to yield the desired result. At least one set of working and counter electrodes each have a plurality of elongated “fingers” interdigitated with those of the other electrode in the set. The gaps between fingers can be quite small, so that the two electrode sets together can operate in a small measurement volume of sample. Additional electrodes can be included that measure the presence or sufficiency of the sample, and additional traces on the strip can act as configuration identifiers.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: August 13, 2013
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Nigel Anthony Surridge, Paul Douglas Walling, Melani Sullivan, Vladimir Svetnik, Brian S. Hill
  • Patent number: 8287703
    Abstract: An electrochemical biosensor with electrode elements that possess smooth, high-quality edges. These smooth edges define gaps between electrodes, electrode traces and contact pads. Due to the remarkable edge smoothness achieved with the present invention, the gaps can be quite small, which provides marked advantages in terms of test accuracy, speed and the number of different functionalities that can be packed into a single biosensor. Further, the present invention provides a novel biosensor production method in which entire electrode patterns for the inventive biosensors can be formed all at one, in nanoseconds—without regard to the complexity of the electrode patterns or the amount of conductive material that must be ablated to form them.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: October 16, 2012
    Assignees: Roche Diagnostics Operations, Inc., Roche Operations Ltd.
    Inventors: Raghbir S. Bhullar, Eric R. Diebold, Brian S. Hill, Nigel Surridge, Paul Douglas Walling
  • Patent number: 8222044
    Abstract: A test strip with a sample receiving chamber having a novel flared portion that terminates in a sample receiving opening. The flared portion provides a reservoir from which sample fluid can be drawn into the capillary or sample receiving chamber. The wider opening provided by the present invention is easier to “target” with a sample fluid. In preferred embodiments, the hydrophilic reagent layer extends to the dosing end or side of the test strip and further promotes wicking of the sample into the sample receiving chamber and thus reduces dose hesitation. In other preferred embodiments, a tapered dosing end is provided on the test strip in combination with the flared portion, and this combination create a test strip that will draw sample fluid into the sample receiving chamber regardless of where along the dosing edge of the test strip the fluid sample makes contact.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: July 17, 2012
    Assignees: Roche Diagnostics Operations, Inc., Roche Operations Ltd.
    Inventors: Raghbir S. Bhullar, Nigel Surridge, Tom Funke, Paul Douglas Walling, Randall K. Riggles
  • Publication number: 20120055626
    Abstract: A test strip with a sample receiving chamber having a novel flared portion that terminates in a sample receiving opening. The flared portion provides a reservoir from which sample fluid can be drawn into the capillary or sample receiving chamber. The wider opening provided by the present invention is easier to “target” with a sample fluid. In preferred embodiments, the hydrophilic reagent layer extends to the dosing end or side of the test strip and further promotes wicking of the sample into the sample receiving chamber and thus reduces dose hesitation. In other preferred embodiments, a tapered dosing end is provided on the test strip in combination with the flared portion, and this combination create a test strip that will draw sample fluid into the sample receiving chamber regardless of where along the dosing edge of the test strip the fluid sample makes contact.
    Type: Application
    Filed: November 16, 2011
    Publication date: March 8, 2012
    Inventors: Raghbir S. Bhullar, Nigel Surridge, Tom Funke, Paul Douglas Walling, Randall K. Riggles
  • Publication number: 20110313673
    Abstract: Methods for decentralized monitoring of a progression of a diabetic state of a patient include contemporaneously obtaining an initial set of venous blood samples and an initial set of capillary blood samples after a standardized metabolic challenge from the patient in a centralized setting, wherein the diabetic state is diagnosed using the initial set of venous blood samples and a first test baseline is established by correlating the initial set of capillary blood samples with the initial set of venous blood samples, implementing a therapy, performing decentralized testing after reaching a target event, wherein a status test is obtained from a status set of capillary blood samples obtained from the patient after a subsequent standardized metabolic challenge, and comparing the status test with the first test baseline to determine an effectiveness of the therapy.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 22, 2011
    Applicant: ROCHE DIAGNOSTICS OPERATIONS, INC.
    Inventors: Paul Douglas Walling, Nigel Surridge
  • Patent number: 8071030
    Abstract: A test strip with a sample receiving chamber having a novel flared portion that terminates in a sample receiving opening. The flared portion provides a reservoir from which sample fluid can be drawn into the capillary or sample receiving chamber. The wider opening provided by the present invention is easier to “target” with a sample fluid. In preferred embodiments, the hydrophilic reagent layer extends to the dosing end or side of the test strip and further promotes wicking of the sample into the sample receiving chamber and thus reduces dose hesitation. In other preferred embodiments, a tapered dosing end is provided on the test strip in combination with the flared portion, and this combination create a test strip that will draw sample fluid into the sample receiving chamber regardless of where along the dosing edge of the test strip the fluid sample makes contact.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: December 6, 2011
    Assignees: Roche Diagnostics Operations, Inc., Roche Operations Ltd.
    Inventors: Raghbir S. Bhullar, Nigel Surridge, Tom Funke, Paul Douglas Walling, Randall K. Riggles
  • Patent number: 7867369
    Abstract: A biosensor having multiple electrical functionalities located both within and outside of the measurement zone in which a fluid sample is interrogated. Incredibly small and complex electrical patterns with high quality edges provide electrical functionalities in the biosensor and also provide the electrical wiring for the various other electrical devices provided in the inventive biosensor. In addition to a measurement zone with multiple and various electrical functionalities, biosensors of the present invention may be provided with a user interface zone, a digital device zone and/or a power generation zone. The inventive biosensors offer improved ease of use and performance, and decrease the computational burden and associated cost of the instruments that read the biosensors by adding accurate yet cost-effective functionalities to the biosensors themselves.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: January 11, 2011
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Raghbir S. Bhullar, Harvey B. Buck, Jr., Brian S. Hill, Paul Douglas Walling, Terry A. Beaty, David W. Burke, Eric R. Diebold
  • Publication number: 20090056120
    Abstract: An electrochemical biosensor with electrode elements that possess smooth, high-quality edges. These smooth edges define gaps between electrodes, electrode traces and contact pads. Due to the remarkable edge smoothness achieved with the present invention, the gaps can be quite small, which provides marked advantages in terms of test accuracy, speed and the number of different functionalities that can be packed into a single biosensor. Further, the present invention provides a novel biosensor production method in which entire electrode patterns for the inventive biosensors can be formed all at one, in nanoseconds—without regard to the complexity of the electrode patterns or the amount of conductive material that must be ablated to form them.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 5, 2009
    Inventors: Raghbir S. Bhullar, Eric R. Diebold, Brian S. Hill, Nigel Surridge, Paul Douglas Walling
  • Publication number: 20090020502
    Abstract: An electrochemical biosensor with electrode elements that possess smooth, high-quality edges. These smooth edges define gaps between electrodes, electrode traces and contact pads. Due to the remarkable edge smoothness achieved with the present invention, the gaps can be quite small, which provides marked advantages in terms of test accuracy, speed and the number of different functionalities that can be packed into a single biosensor. Further, the present invention provides a novel biosensor production method in which entire electrode patterns for the inventive biosensors can be formed all at one, in nanoseconds—without regard to the complexity of the electrode patterns or the amount of conductive material that must be ablated to form them.
    Type: Application
    Filed: September 25, 2008
    Publication date: January 22, 2009
    Inventors: Raghbir S. Bhullar, Eric R. Diebold, Brian S. Hill, Nigel Surridge, Paul Douglas Walling