Patents by Inventor Wolfgang Schrof

Wolfgang Schrof 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).

  • Patent number: 6242561
    Abstract: Novel polythiophene-containing structural units of the general formulae (I) and (II) processes for their preparation, monomers for their preparation, their use in various industrial fields, and an electrically conductive material comprising these.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: June 5, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Möhwald, Vladimir Belov, Wolfgang Schrof
  • Patent number: 6242504
    Abstract: A description is given of a method of crosslinking radiation-crosslinkable pressure-sensitive adhesive films by controlled-dose exposure to actinic radiation, which involves exposing the film surface to a regular or irregular radiation pattern made up of regions of different intensity. The method permits a more precise adjustment of the adhesion—in particular, the adhesion of flexible films on a substrate.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: June 5, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Meyer-Roscher, Wolfgang Schrof, Dieter Urban, Paul Ludwig Geiss, Walter Brockmann
  • Patent number: 6218468
    Abstract: In a process for the preparation of an aqueous polymer dispersion by the free radical aqueous emulsion polymerization method, the polymerization is carried out in the presence of frozen micelles of amphiphilic substances.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: April 17, 2001
    Assignees: BASF Aktiengesellschaft, Max-Planck-Institut
    Inventors: Klemens Mathauer, Walter Mächtle, Wolfgang Schrof, Horst Schuch, Timo Rager, Wolfgang Meyer, Gerhard Wegner
  • Patent number: 6197922
    Abstract: Novel polyselenophenes comprising one or more structural units of the formulae (I) or (II) or (I) and (II) processes for preparing them, monomers for their preparation, their use in various technical sectors, and an electrically conducting material comprising them.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: March 6, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Möhwald, Vladimir Belov, Wolfgang Schrof
  • Patent number: 5982485
    Abstract: A method and an apparatus for determining the coverage of the interface between a liquid first phase and a liquid or gaseous second phase by at least one molecular species, at least the following procedural steps being carried out successively: the generation of a stream of droplets which contain at least the liquid first phase, in such a way that the droplets move along a droplet trajectory, and the non-contact determination of a measure of the coverage of the interface by the at least one molecular species at at least two different points along the droplet trajectory.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Schrof, Frank Runge, Jurgen Klingler
  • Patent number: 5977201
    Abstract: Polymer systems having reversibly temperature-dependent radiation transmission which are crosslinked with radiation induction, a process for their production, and their use for reversibly temperature-dependent control of the radiation transmission of glazing systems and solar-energy devices.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: November 2, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Ekkehard Jahns, Hubertus Kroner, Wolfgang Schrof, Utz Klodwig
  • Patent number: 5949532
    Abstract: A method and an apparatus for determining diffusion parameters, concentration, size or flow behavior of particles in a sample, exciting light of a light source being directed into the sample, Raman scattered light being collected from an observed volume of the sample and being passed on to a spectrograph where it is resolved into spectral lines, the intensity of at least one spectral line being measured at least 10 times per second by means of one photodetector each, and the measured intensity values for the respective spectral line being used, via a fluctuation analysis, preferably an autocorrelation or a frequency analysis, to calculate diffusion parameters, concentration, size or flow behavior of the particle to which the spectral line in question can be assigned. With this method, it is also possible for signals of different spectral lines or bands, or signals of Raman scattered light, quasi-elastically scattered light and fluorescence light to be correlated with one another.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: September 7, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Schrof, Jurgen Klingler, Dieter Horn
  • Patent number: 5815262
    Abstract: An apparatus for carrying out laser-induced two-photon fluorescence correlation spectroscopy (TPA-FCS), in which a plurality of volumes (6) are delimited or defined in the apparatus in such a way that samples (3) introduced into these volumes can be excited and observed in parallel by means of a single laser (1). Such an apparatus is e.g. used to screen active compounds.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: September 29, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Schrof, Jurgen Klingler, Dieter Horn, Elmar Mayer