Patents by Inventor Juergen Jahn

Juergen Jahn 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).

  • Polycarboxylic acid esters and lubricants containing these esters
    Patent number: 4790957
    Abstract: This invention relates to aliphatic or aromatic polycarboxylic acid esters as defined herein which are useful as base oils alone in lubricating oil compositions or in admixture with completely synthetic, partially synthetic, or mineral oil-based lubricant compositions.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: December 13, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Mach, Hans-Henning Vogel, Juergen Jahn