Patents by Inventor Stephan Lehmann

Stephan Lehmann 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: 20070122436
    Abstract: The invention relates to nanoparticulate formulations comprising at least one active compound or compound with a special effect and at least one random radical copolymer. The copolymers are formed from monomers carrying sulfonic acid groups and additional olefinically unsaturated compounds. The formulations are dispersible as nanoparticles in an aqueous medium. The invention includes, in addition, processes for the preparation of the solid and liquid formulations, and their use.
    Type: Application
    Filed: October 19, 2004
    Publication date: May 31, 2007
    Inventors: Sebastian Koltzenburg, Stephan Lehmann, Winfried Mayer, Matthias Bratz, Werner Goedel
  • Publication number: 20050085527
    Abstract: Bisimine compounds of the formula (I) where the symbols have the following meanings: A is a nonmetal selected from among N, S, O and P, R1 is a radical of the formula NR5R6, R2 is a radical of the formula NR5R6 or NR7R8, alkyl, aryl or cycloalkyl, R5 and R6 together with the N atom form a 5-, 6- or 7-membered ring in which one or more of the —CH— or —CH2— groups may be replaced by suitable heteroatom groups and which may be saturated or unsaturated and unsubstituted or substituted or be fused with further carbacyclic or heterocarbacyclic 5- or 6-membered rings which may in turn be saturated or unsaturated and substituted or unsubstituted, and R7 and R8 are, independently of one another, alkyl, aryl or cycloalkyl radicals, and R3, R4 are, independently of one another, H or alkyl, aryl or cycloalkyl radicals, and n is 1 or 2, are used to prepare bisimidinato complexes which can be used in the polymerization of unsaturated compounds.
    Type: Application
    Filed: October 7, 2004
    Publication date: April 21, 2005
    Inventors: Marc Kristen, Andrei Gonioukh, Dieter Lilge, Stephan Lehmann, Benno Bildstein, Christoph Amort, Michael Malaun
  • Publication number: 20050014282
    Abstract: The invention relates to a process for parallel and automated evaluation of the blushing of n samples of dispersion films, which comprises (a) providing an illuminated array of n spatially separated samples of the dispersion films, (b) imaging the array of n samples by means of a CCD camera at m+1 different times t0 to tm and digitizing the images, (c) automatically determining multiple brightnesses B(k, ti) for each sample at different times ti selected from t0 to tm from the m+1 different digitized images for at least a portion of the n samples, where B(k, ti) is the brightness of the kth of n samples at the respective time ti and is a measure for the blushing of this sample at this time, (d) determining values P(k) of a parameter characteristic of the kinetics of the blushing from the different brightnesses B(k, ti) for each sample for at least a portion of the n samples, where P(k) is the value of the characteristic parameter for the kth of the n samples.
    Type: Application
    Filed: January 13, 2003
    Publication date: January 20, 2005
    Inventors: Wolfgang Schrof, Thorsten Muller, Alexander Centner, Stephan Lehmann, Joachim Hadeler
  • Publication number: 20050000274
    Abstract: The invention relates to a process for the combinatorial investigation of the hardening of hardenable liquid or viscous formulations (a) in which n hardenable formulations are prepared in parallel in n containers, and (b) the degree of hardening is determined at least once on each of the n formulations by inserting a measurement tip into the formulation with a certain force and measuring the maximum penetration depth achieved as a measure of the degree of hardening of this formulation, and (c) for in each case one composition of the formulations, one or more parameters that are characteristic of the kinetics of hardening are determined from the measurement values for the penetration depth at various times after preparation of the formulations.
    Type: Application
    Filed: September 27, 2002
    Publication date: January 6, 2005
    Inventors: Wolfgang Schrof, Thorsten Muller, Sebastian Koltzenburg, Matthias Kroner, Stephan Lehmann, Joachim Hadeler
  • Publication number: 20040242427
    Abstract: The invention relates to a solid crop protection formulation comprising
    Type: Application
    Filed: May 6, 2004
    Publication date: December 2, 2004
    Inventors: Sebastian Koltzenburg, Wolfgang Schrof, Michael Seufert, Robert Heger, Stephan Lehmann, Uwe Kardorff, Cyrill Zagar, Matthias Bratz, Eric D. Carlson, Han Ting Chang, Sigrid C. Kuebler
  • Patent number: 6818715
    Abstract: Bisimine compounds of the formula (I) where the symbols are defined in the specification are used to prepare bisimidinato complexes which can be used in the polymerization of unsaturated compounds.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: November 16, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Marc Oliver Kristen, Andrei Gonioukh, Dieter Lilge, Stephan Lehmann, Benno Bildstein, Christoph Amort, Michael Malaun
  • Publication number: 20030144981
    Abstract: A remote research system, comprising: a central laboratory site equipped to be used for chemical research tests; one or several laboratory robots for performing chemical research tests; a central processing unit (CPU); one or several workstations linked to said central processing unit and set up to control said laboratory robots; one or several cameras for detecting actions of said laboratory robots when performing one of said chemical research tests, said one or several cameras being linked to said central processing unit via said one or several workstations; one or several remote user workstations linked to said central processing unit via a computer network and set up to allow remote user access to chemical research tests performed in said central laboratory site, the execution of a test performed being transmitted by said one or several cameras via said central processing unit and said computer network to said one or several remote user workstations.
    Type: Application
    Filed: January 30, 2002
    Publication date: July 31, 2003
    Applicant: BASF Aktiengesellschaft
    Inventors: Wolfgang Schrof, Thomas Lorenz, Stephan Lehmann, Joachim Hadeler, Rudiger Iden, Upali Bandara