Patents by Inventor Derek Puff

Derek Puff 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: 20190218591
    Abstract: Automated Antimicrobial Susceptibility Testing (AST) systems and methods are provided in which samples are passed through one or more recursive or non-deterministic operations and are batched or re-batched to optimize the utilization of resources for subsequent deterministic operation sequences. Automated AST systems are also provided in which deterministic and non-deterministic workflows are spatially segregated.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 18, 2019
    Inventors: Aleksandar Vacic, Nathan Purmort, Derek Puff, JR., Frederick P. Floyd, JR.
  • Patent number: 8247240
    Abstract: Performing high-resolution determination of the relative shift of the spectral properties of a biosensor. The shift in the resonance peak of the biosensor is indicative of the amount of material bound to the surface of the biosensor. A preferred biosensor is a Guided Mode Resonant Filter Biosensor (GMRFB). In one aspect of the invention, curve fitting is used to determine the relative location of the spectrum of the unexposed biosensor with respect to those spectra that are altered (e.g., shifted) by the presence of materials bound to the surface of the biosensor. In an alternative embodiment, the cross correlation function is used to detect spectral peak offsets between a reference spectrum and a spectrum measured from an exposed biosensor. In yet another alternative, maximal likelihood estimation techniques are used to determine the spectral shift or offs.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: August 21, 2012
    Assignee: X-Body, Inc.
    Inventors: Homer Paul Pien, William C. Karl, Derek Puff, Peter Li, Brian Cunningham
  • Publication number: 20100231907
    Abstract: Performing high-resolution determination of the relative shift of the spectral properties of a biosensor. The shift in the resonance peak of the biosensor is indicative of the amount of material bound to the surface of the biosensor. A preferred biosensor is a Guided Mode Resonant Filter Biosensor (GMRFB). In one aspect of the invention, curve fitting is used to determine the relative location of the spectrum of the unexposed biosensor with respect to those spectra that are altered (e.g., shifted) by the presence of materials bound to the surface of the biosensor. In an alternative embodiment, the cross correlation function is used to detect spectral peak offsets between a reference spectrum and a spectrum measured from an exposed biosensor. In yet another alternative, maximal likelihood estimation techniques are used to determine the spectral shift or offs.
    Type: Application
    Filed: May 18, 2010
    Publication date: September 16, 2010
    Applicant: SRU BIOSYSTEMS, LLC
    Inventors: Homer Pien, William C. Karl, Derek Puff, Peter Li, Brian Cunningham
  • Patent number: 7718440
    Abstract: Performing high-resolution determination of the relative shift of the spectral properties of a biosensor. The shift in the resonance peak of the biosensor is indicative of the amount of material bound to the surface of the biosensor. A preferred biosensor is a Guided Mode Resonant Filter Biosensor (GMRFB). In one aspect of the invention, curve fitting is used to determine the relative location of the spectrum of the unexposed biosensor with respect to those spectra that are altered (e.g., shifted) by the presence of materials bound to the surface of the biosensor. In an alternative embodiment, the cross correlation function is used to detect spectral peak offsets between a reference spectrum and a spectrum measured from an exposed biosensor. In yet another alternative, maximal likelihood estimation techniques are used to determine the spectral shift or offs.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: May 18, 2010
    Assignee: SRU Biosystems, Inc.
    Inventors: Homer Paul Pien, William C. Karl, Derek Puff, Peter Li, Brian Cunningham
  • Publication number: 20080052006
    Abstract: Performing high-resolution determination of the relative shift of the spectral properties of a biosensor. The shift in the resonance peak of the biosensor is indicative of the amount of material bound to the surface of the biosensor. A preferred biosensor is a Guided Mode Resonant Filter Biosensor (GMRFB). In one aspect of the invention, curve fitting is used to determine the relative location of the spectrum of the unexposed biosensor with respect to those spectra that are altered (e.g., shifted) by the presence of materials bound to the surface of the biosensor. In an alternative embodiment, the cross correlation function is used to detect spectral peak offsets between a reference spectrum and a spectrum measured from an exposed biosensor. In yet another alternative, maximal likelihood estimation techniques are used to determine the spectral shift or offs.
    Type: Application
    Filed: May 15, 2007
    Publication date: February 28, 2008
    Applicant: SRU BIOSYSTEMS, LLC
    Inventors: Homer Pien, William Karl, Derek Puff, Peter Li, Brian Cunningham
  • Patent number: 7217574
    Abstract: Performing high-resolution determination of the relative shift of the spectral properties of a biosensor. The shift in the resonance peak of the biosensor is indicative of the amount of material bound to the surface of the biosensor. A preferred biosensor is a Guided Mode Resonant Filter Biosensor (GMRFB). In one aspect of the invention, curve fitting is used to determine the relative location of the spectrum of the unexposed biosensor with respect to those spectra that are altered (e.g., shifted) by the presence of materials bound to the surface of the biosensor. In an alternative embodiment, the cross correlation function is used to detect spectral peak offsets between a reference spectrum and a spectrum measured from an exposed biosensor. In yet another alternative, maximal likelihood estimation techniques are used to determine the spectral shift or offs.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: May 15, 2007
    Assignee: SRU Biosystems, Inc.
    Inventors: Homer Pien, William C. Karl, Derek Puff, Peter Li, Brian Cunningham
  • Publication number: 20030077660
    Abstract: Performing high-resolution determination of the relative shift of the spectral properties of a biosensor. The shift in the resonance peak of the biosensor is indicative of the amount of material bound to the surface of the biosensor. A preferred biosensor is a Guided Mode Resonant Filter Biosensor (GMRFB). In one aspect of the invention, curve fitting is used to determine the relative location of the spectrum of the unexposed biosensor with respect to those spectra that are altered (e.g., shifted) by the presence of materials bound to the surface of the biosensor. In an alternative embodiment, the cross correlation function is used to detect spectral peak offsets between a reference spectrum and a spectrum measured from an exposed biosensor. In yet another alternative, maximal likelihood estimation techniques are used to determine the spectral shift or offs.
    Type: Application
    Filed: September 25, 2002
    Publication date: April 24, 2003
    Applicant: SRU BIOSYSTEMS, LLC
    Inventors: Homer Pien, William C. Karl, Derek Puff, Peter Li, Brian Cunningham