Patents by Inventor Ute Neumann

Ute Neumann 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 for producing aryl oligoamines
    Patent number: 6476265
    Abstract: In a process for preparing aryl oligoamines, an amine is reacted with an activated aromatic and a base in a temperature range from 0 to 150° C. in the presence of a palladium component and a phosphine ligand. The aryl oligoamines are obtained simply and in good yields.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: November 5, 2002
    Assignee: Covion Organic Semiconductors GmbH
    Inventors: Hubert Spreitzer, Willi Kreuder, Heinrich Becker, Ute Neumann
  • Coated magnetic recording media
    Patent number: 4018968
    Abstract: Coated magnetic recording media, especially video tapes and computer tapes, comprising a non-magnetic base carrying a magnetic coating which consists of a dispersion, essentially containing a finely divided magnetic pigment in an organic binder and at least one lubricant. A compound of the formula ##STR1## in which n is an integer of from 1 to 3 and R is alkyl, alkoxyalkyl or aralkyl, each of 3 to 18 carbon atoms, is used as a lubricant. The products have high abrasion resistance coupled with only little transfer of material to the magnetic heads even under fluctuating climatic conditions.
    Type: Grant
    Filed: September 19, 1974
    Date of Patent: April 19, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Ute Neumann, Hermann Roller, Job-Werner Hartmann, Joachim Hack, Herbert Motz, Werner Ostertag