Patents by Inventor Andy Vo

Andy Vo 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).

  • Publication number: 20130098775
    Abstract: A disposable biosensor having improved long term storage stability including a working electrode and a reference electrode formed on an insulating substrate and a dissolvable reagent layer composition disposed directly on the working electrode where the reagent layer composition contains a glucose-based enzyme, a reagent component selected from a phosphate buffer and a tris reagent, and a redox mediator.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 25, 2013
    Applicant: NOVA BIOMEDICAL CORPORATION
    Inventors: Jianhong Pei, Andy Vo, Chung Chang Young
  • Patent number: 7955484
    Abstract: A system for more accurately measuring glucose in a sample includes a first glucose-sensing electrode incorporating a quantity of glucose oxidase, a second glucose-sensing electrode incorporating a quantity of PQQ-glucose dehydrogenase, a reference electrode, and means for selecting between a first glucose measurement made with the first glucose-sensing electrode and a second glucose measurement made with the second glucose-sensing electrode.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: June 7, 2011
    Assignee: Nova Biomedical Corporation
    Inventors: Xiaohua Cai, Chung Chang Young, Jianhong Pei, Andy Vo
  • Publication number: 20080006530
    Abstract: A sensor strip with capillary flow control has a base layer having a plurality of conductive paths delineated thereon, an electrode forming layer disposed on the base layer, the electrode forming layer having a first opening forming a working electrode, a second opening forming a reference electrode, and a flow-control mechanism, a spacer layer disposed on the electrode forming layer, and a cover layer with a vent opening disposed on the spacer layer and forming a substantially flat sample channel with walls formed by the electrode forming layer, the spacer layer and the cover layer, the substantially flat sample chamber having a sample inlet adjacent a proximal end and the vent opening adjacent a distal end where the substantially flat sample chamber contains the working electrode, the reference electrode and the flow-control mechanism.
    Type: Application
    Filed: June 19, 2006
    Publication date: January 10, 2008
    Inventors: Handani Winarta, Chung Chang Young, Andy Vo, Yu-Tao Chuang, Yu-Feng Chang
  • Publication number: 20070131549
    Abstract: A system for more accurately measuring glucose in a sample includes a first glucose-sensing electrode incorporating a quantity of glucose oxidase, a second glucose-sensing electrode incorporating a quantity of PQQ-glucose dehydrogenase, a reference electrode, and means for selecting between a first glucose measurement made with the first glucose-sensing electrode and a second glucose measurement made with the second glucose-sensing electrode.
    Type: Application
    Filed: December 14, 2005
    Publication date: June 14, 2007
    Applicant: NOVA BIOMEDICAL CORPORATION
    Inventors: Xiaohua Cai, Chung Young, Jianhong Pei, Andy Vo
  • Patent number: 6942770
    Abstract: A disposable electrode strip for testing a fluid sample including a laminated strip with a first and second end, a vent, an open path for receiving a fluid sample of less than one microliter beginning from the first end and connecting to the vent, a working electrode, a reference electrode and a pseudo-working electrode embedded in the laminated strip within the open path and proximate to the first end, a reagent matrix coextensive within the open path and covering the three electrodes, and conductive contacts located at the second end of the laminated strip.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: September 13, 2005
    Assignee: Nova Biomedical Corporation
    Inventors: Xiaohua Cai, Handani Winarta, Andy Vo, Chung Chang Young
  • Patent number: 6837976
    Abstract: A disposable biosensor for testing a fluid sample including a laminated strip with a first and second end, a reference electrode embedded in the laminated strip proximate to the first end, at least one working electrode embedded in the laminated strip proximate to the first end and the reference electrode, an open path for receiving a fluid sample beginning from the first end and connecting to a vent spaced from the first end, the open path being sufficiently long to expose the reference electrode and the working electrode to the fluid sample, and conductive contacts located at the second end of the laminated strip. The laminated strip has a base layer with a conductive coating, a reagent holding layer, a channel forming layer and a cover having an inlet notch at the first end. The working electrode contains a reagent having an enzyme.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: January 4, 2005
    Assignee: Nova Biomedical Corporation
    Inventors: Xiaohua Cai, Handani Winarta, Andy Vo, Chung Chang Young
  • Publication number: 20040224369
    Abstract: A disposable biosensor for testing a fluid sample including a laminated strip with a first and second end, a reference electrode embedded in the laminated strip proximate to the first end, at least one working electrode embedded in the laminated strip proximate to the first end and the reference electrode, an open path for receiving a fluid sample beginning from the first end and connecting to a vent spaced from the first end, the open path being sufficiently long to expose the reference electrode and the working electrode to the fluid sample, and conductive contacts located at the second end of the laminated strip. The laminated strip has a base layer with a conductive coating, a reagent holding layer, a channel forming layer and a cover having an inlet notch at the first end. The working electrode contains a reagent having an enzyme.
    Type: Application
    Filed: April 19, 2002
    Publication date: November 11, 2004
    Inventors: Xiaohua Cai, Handani Winarta, Andy Vo, Chung Chang Young
  • Publication number: 20030196894
    Abstract: A disposable electrode strip for testing a fluid sample including a laminated strip with a first and second end, a vent, an open path for receiving a fluid sample of less than one microliter beginning from the first end and connecting to the vent, a working electrode, a reference electrode and a pseudo-working electrode embedded in the laminated strip within the open path and proximate to the first end, a reagent matrix coextensive within the open path and covering the three electrodes, and conductive contacts located at the second end of the laminated strip.
    Type: Application
    Filed: April 19, 2002
    Publication date: October 23, 2003
    Inventors: Xiaohua Cai, Handani Winarta, Andy Vo, Chung Chang Young