Patents by Inventor Erich Fehr

Erich Fehr 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).

  • Polyalkene amines with improved applicational properties
    Publication number: 20070094922
    Abstract: The present invention relates to polyalkene amine formulations comprising at least one polyalkene amine in a solvent, having improved performance properties, especially improved low temperature properties; a process for preparing such formulations and the use of these formulations in fuel and lubricant compositions, in particular fuels, for improving the intake system-cleaning action of such fuels.
    Type: Application
    Filed: March 31, 2004
    Publication date: May 3, 2007
    Applicant: BASF Akiengesellschaft
    Inventors: Marco Bergemann, Harald Schwahn, Dietmar Posselt, Erich Fehr, Thomas Wettling, Klaus Diehl, Helmut Schmidtke
  • Fuel composition
    Publication number: 20060196110
    Abstract: A fuel composition comprising a major amount of a gasoline fuel having a maximum sulfur content of 150 ppm by weight and a minor amount of at least one gasoline fuel additive having detergent action or having a valve seat wear-inhibiting action, wherein this gasoline fuel additive has at least one hydrophobic hydrocarbon radical having a number-average molecular weight (MN) of from 85 to 20 000 and at least one polar moiety, and wherein the fuel composition also has a content of at least one lower alkanol of from about 5 to 75% by volume.
    Type: Application
    Filed: April 8, 2004
    Publication date: September 7, 2006
    Applicant: BASF Aktiengesellschaft
    Inventors: Harald Schwahn, Dietmar Posselt, Erich Fehr
  • Preparation of imidazoles
    Patent number: 4340744
    Abstract: Imidazoles are prepared by reacting 2-imidazolines at from 250.degree. to 500.degree. C. in the presence of molybdenum oxide and nickel oxide and/or cobalt oxide and aluminum oxide, silicon dioxide and/or silicates as catalysts.The imidazoles obtainable by the process according to the invention are valuable starting materials for the preparation of dyes, crop protection agents, textile auxiliaries, catalysts for polyurethanes and epoxy resins, surfactants and drugs, for example the corresponding nitroimidazoles.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: July 20, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Schwarz, Toni Dockner, Uwe Kempe, Herbert Krug, Werner Praetorius, Peter Magnussen, Ewald Gallei, Erich Fehr