Patents by Inventor Wolf Stegmaier

Wolf Stegmaier 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).

  • Method and device for detecting fumigants in air samples
    Patent number: 7459483
    Abstract: The present invention relates to a method and a device for detecting fumigants in air samples. The device can be designed for example as a portable analyzer 10 equipped with a stab probe 11 for sampling soil air. There are provided detection means 16 which, upon contact with the air sample, generate electrical signals which depend on the concentration of the fumigants to be detected in the air sample. In accordance with the invention, the detection means 16 comprise at least one mass-sensitive sensor, for example an array of quartz microbalances, which have suitable selective surface layers.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: December 2, 2008
    Assignee: Kanesho Soil Treatment SPRL/BVBA
    Inventors: Reiner Kober, Wolf Stegmaier, Hans Ziegler, Erich Probeck, Thomas Christen, Joachim Bargon, Fritz Voegtle, Gerhard Horner
  • Method for the reduction of acrylamide formation during heating of amino group-containing compounds
    Publication number: 20060210693
    Abstract: A process is described for reducing the formation of acrylamide during the heating of amino compounds in the presence of reducing substances, which comprises, before the heating, mixing the amino compounds with ascorbic acid and/or vitamin E.
    Type: Application
    Filed: April 7, 2004
    Publication date: September 21, 2006
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Alfred Oftring, Klaus Kramer, Brigitte Nowakowsky, Ute Obermuller-Jevic, Arnulf Troscher, Wolf Stegmaier
  • Coproduction of acetylene and hydrocyanic acid from acrylonitrile
    Patent number: 6042799
    Abstract: In the process for preparing acetylene and hydrocyanic acid by pyrolyzing acrylonitrile in a reactor, the gaseous reaction products of the pyrolysis are quenched down to less than 100.degree. C. immediately, advantageously within seconds, preferably within .ltoreq.1 s, of leaving the pyrolysis zone.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: March 28, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Halbritter, Michael Henningsen, Manfred Julius, Wolf Stegmaier