Patents by Inventor Gerald Wiegand

Gerald Wiegand 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).

  • Highly time resolved impedance spectroscopy
    Patent number: 7015701
    Abstract: A highly time resolved impedance spectroscopy enhances measurement of the dynamics of non-stationary systems with enhanced time resolution. The highly time resolved impedance spectroscopy includes an optimized, frequency rich a.c., or transient, voltage signal is used as the perturbation signal, non-stationary time to frequency transformation algorithms are used when processing the measured time signals of the voltage and current to determine impedance spectra which are localized in time; and the system-characterizing quantities are determined from the impedance spectra using equivalent circuit fitting in a time-resolution-optimized form. Also provided are measuring cells and methods for measuring impedance spectra of biofunctional molecules and aggregates.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: March 21, 2006
    Inventors: Gerald Wiegand, Erich Sackman
  • Methods and devices for performing impedance spectroscopy
    Patent number: 6885960
    Abstract: A highly time resolved impedance spectroscopy that enhances the measurement of the dynamics of non-stationary systems with enhanced time resolution. The highly time resolved impedance spectroscopy includes an optimized, frequency rich a.c., or transient, voltage signal is used as the perturbation signal, non-stationary time to frequency transformation algorithms are used when processing the measured time signals of the voltage and current to determine impedance spectra which are localized in time; and the system-characterizing quantities are determined from the impedance spectra using equivalent circuit fitting in a time-resolution-optimized form. Methods and apparatus for processing impedance spectra data are also provided.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: April 26, 2005
    Assignee: Zyomyx, Inc.
    Inventors: Peter Wagner, Gerald Wiegand
  • Methods and devices for performing impedance spectroscopy
    Publication number: 20040073390
    Abstract: A highly time resolved impedance spectroscopy that enhances the measurement of the dynamics of non-stationary systems with enhanced time resolution. The highly time resolved impedance spectroscopy includes an optimized, frequency rich a.c., or transient, voltage signal is used as the perturbation signal, non-stationary time to frequency transformation algorithms are used when processing the measured time signals of the voltage and current to determine impedance spectra which are localized in time; and the system-characterizing quantities are determined from the impedance spectra using equivalent circuit fitting in a time-resolution-optimized form. Methods and apparatus for processing impedance spectra data are also provided.
    Type: Application
    Filed: February 25, 2003
    Publication date: April 15, 2004
    Inventors: Peter Wagner, Gerald Wiegand
  • Highly time resolved impedance spectroscopy
    Publication number: 20030173976
    Abstract: A highly time resolved impedance spectroscopy that enhances the measurement of the dynamics of non-stationary systems with enhanced time resolution. The highly time resolved impedance spectroscopy includes an optimized, frequency rich a.c., or transient, voltage signal is used as the perturbation signal, non-stationary time to frequency transformation algorithms are used when processing the measured time signals of the voltage and current to determine impedance spectra which are localized in time; and the system-characterizing quantities are determined from the impedance spectra using equivalent circuit fitting in a time-resolution-optimized form.
    Type: Application
    Filed: March 4, 2003
    Publication date: September 18, 2003
    Inventors: Gerald Wiegand, Erich Sackman
  • Highly time resolved impedance spectroscopy
    Patent number: 6556001
    Abstract: A highly time resolved impedance spectroscopy that enhances the measurement of the dynamics of non-stationary systems with enhanced time resolution. The highly time resolved impedance spectroscopy includes an optimized, frequency rich a.c., or transient, voltage signal is used as the perturbation signal, non-stationary time to frequency transformation algorithms are used when processing the measured time signals of the voltage and current to determine impedance spectra which are localized in time; and the system-characterizing quantities are determined from the impedance spectra using equivalent circuit fitting in a time-resolution-optimized form.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: April 29, 2003
    Inventors: Gerald Wiegand, Erich Sackman