Patents by Inventor Siegfried Bechtel

Siegfried Bechtel 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).

  • Crystallization of amino acids using ultrasonic agitation
    Patent number: 7378545
    Abstract: A method for reducing the particle size of amino acid crystals using ultrasound is discussed.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: May 27, 2008
    Assignee: Abbott Laboratories
    Inventors: Siegfried Bechtel, Matthias Rauls, Richard Van Gelder, Seth C. Simpson
  • Crystallization of amino acids using ultrasonic agitation
    Publication number: 20060122421
    Abstract: A method for reducing the particle size of amino acid crystals using ultrasound is discussed.
    Type: Application
    Filed: September 19, 2005
    Publication date: June 8, 2006
    Inventors: Siegfried Bechtel, Matthias Rauls, Richard Van Gelder, Seth Simpson
  • Crystallization of amino acids using ultrasonic agitation
    Patent number: 6992216
    Abstract: A method for reducing the particle size of amino acid crystals using ultrasound is discussed.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: January 31, 2006
    Assignee: Abbott GmbH & Co. KG
    Inventors: Siegfried Bechtel, Matthias Rauls, Richard Van Gelder, Seth C. Simpson
  • Method for increasing the catalytic activity of multi-metal cyanide compounds
    Publication number: 20040242937
    Abstract: The catalytic activity of multimetal cyanide compounds used as catalysts for the addition of alkylene oxides onto H-functional starter substances is increased by subjecting the multimetal cyanide compounds to deagglomeration immediately before they are mixed with the H-functional starter substances.
    Type: Application
    Filed: February 6, 2004
    Publication date: December 2, 2004
    Inventors: Eva Baum, Georg Heinrich Grosch, Siegfried Bechtel, Raimund Ruppel, Kathrin Harre, Edward Bohres
  • Crystallization of amino acids using ultrasonic agitation
    Publication number: 20030166726
    Abstract: A method for reducing the particle size of amino acid crystals using ultrasound is discussed.
    Type: Application
    Filed: January 7, 2003
    Publication date: September 4, 2003
    Inventors: Siegfried Bechtel, Matthias Rauls, Richard Van Gelder, Seth C. Simpson
  • Determining production parameters of scale flow device
    Patent number: 6515030
    Abstract: A device for producing disperse mixtures by ultrasound, containing a housing, and a reaction chamber within the housing and at least one sonotrode having a free emitting surface which is directly in effective connection with the reaction chamber and whose end remote from the free emitting surface is coupled to an ultrasonic transducer, wherein the sonotrode is designed as a rod-shaped, axially emitting longitudinal oscillator with the emitting surface corresponding essentially to the surface of the reaction chamber, and wherein the reaction chamber depth which is essentially vertical with respect to the emitting surface is lower than a maximum effective depth of the sonotrode.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: February 4, 2003
    Assignee: BASF Aktiengesellshaft
    Inventors: Siegfried Bechtel, Sabine Kielhorn-Bayer, Klemens Mathauer
  • Reduction of encrustation of crystallization processes
    Patent number: 6444181
    Abstract: In a process and an apparatus for avoiding encrustations in reactors or crystallizers (13), such as industrial crystallizers for suspensions (11), points of incidence (4) for the excitation of ultrasonic oscillations by sonotrodes (3) which are connected to electromechanical converters (2) are provided on the walls (6, 21) and on the base (7) of the crystallizer (13). The ultrasonic frequency is generated at high-frequency generators (1).
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: September 3, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Setzer, Bernhard Otto, Siegfried Bechtel, Richard van Gelder, Thomas Fetzer, Joachim Borgwart, Matthias Rauls, Christoph Gahn