Patents by Inventor Volkmar Uhlendorf

Volkmar Uhlendorf 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).

  • Ultrasonic processes and circuits for performing them
    Patent number: 6443899
    Abstract: A process for selective graphic representation and/or evaluation of the Doppler spectrum of objects limitedly resistant to sonic intensity, for example biological organs and tissues, by an ultrasonic process wherein an examination area is acoustically irradiated, nonlinear oscillations are produced in the examination area by irradiated ultrasonic waves and the signal is evaluated by an ultrasonic converter. Also, a circuit for carrying out the above process is disclosed.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: September 3, 2002
    Assignee: Schering Aktiengesellschaft
    Inventors: Volkmar Uhlendorf, Thomas Fritzsch, Joachim Siegert
  • Ultrasonic processes and circuits for performing them
    Patent number: 6221017
    Abstract: A process for selective graphic representation and/or evaluation of the Doppler spectrum of objects limitedly resistant to sonic intensity, for example biological organs and tissues, by an ultrasonic process wherein an examination area is acoustically irradiated, nonlinear oscillations are produced in the examination area by irradiated ultrasonic waves and the signal is evaluated by an ultrasonic converter. Also, a circuit for carrying out the above process is disclosed.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: April 24, 2001
    Assignee: Schering Aktiengesellschaft
    Inventors: Volkmar Uhlendorf, Thomas Fritzsch, Joachim Siegert
  • Ultrasonic processes and circuits for performing them
    Patent number: 6064628
    Abstract: A process for selective graphic representation and/or evaluation of the Doppler spectrum of objects limitedly resistant to sonic intensity, for example biological organs and tissues, by an ultrasonic process wherein a material is introduced in the examination area to be acoustically irradiated, nonlinear oscillations are produced in the examination area by irradiated ultrasonic waves and the signal is evaluated by an ultrasonic converter. Also, a circuit for carrying out the above process is disclosed.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 16, 2000
    Assignee: Schering Aktiengesellschaft
    Inventors: Volkmar Uhlendorf, Thomas Fritzsch, Joachim Siegert
  • Ultrasonic processes and circuits for performing them
    Patent number: 6034922
    Abstract: A process for selective graphic representation and/or evaluation of the Doppler spectrum of objects limitedly resistant to sonic intensity, for example biological organs and tissues, by an ultrasonic process wherein a material is introduced in the examination area to be acoustically irradiated, nonlinear oscillations are produced in the examination area by irradiated ultrasonic waves and the signal is evaluated by an ultrasonic converter. Also, a circuit for carrying out the above process is disclosed.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: March 7, 2000
    Assignee: Schering Aktiengesellschaft
    Inventors: Volkmar Uhlendorf, Thomas Fritzsch, Joachim Siegert
  • Ultrasonic processes and circuits for carrying out those processes
    Patent number: 5678553
    Abstract: A process for selective graphic representation and/or evaluation of the Doppler spectrum of objects limitedly resistant to sonic intensity, for example biological organs and tissues, by an ultrasonic process wherein a material is introduced in the examination area to be acoustically irradiated, nonlinear oscillations are produced in the examination area by irradiated ultrasonic waves and the signal is evaluated by an ultrasonic converter. Also, a circuit for carrying out the above process is disclosed.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: October 21, 1997
    Assignee: Schering Aktiengesellschaft
    Inventors: Volkmar Uhlendorf, Christian Hoffmann, Thomas Fritzsch
  • Ultrasonic processes and circuits for performing them
    Patent number: 5410516
    Abstract: A process for selective graphic representation and/or evaluation of the Doppler spectrum of objects limitedly resistant to sonic intensity, for example biological organs and tissues, by an ultrasonic process wherein a material is introduced in the examination area to be acoustically irradiated, nonlinear oscillations are produced in the examination area by irradiated ultrasonic waves and the signal is evaluated by an ultrasonic converter. Also, a circuit for carrying out the above process is disclosed.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: April 25, 1995
    Assignee: Schering Aktiengesellschaft
    Inventors: Volkmar Uhlendorf, Thomas Fritzsch, Joachim Siegert