Patents by Inventor Manfred Haselhorst

Manfred Haselhorst 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).

  • Motor fuel containing tert-butyl ethers
    Patent number: 4468233
    Abstract: A motor fuel comprising 35-98% hydrocarbon-containing base and 2-65% by volume of an additive which comprises a mixture containing(a) 5-35% by volume of methyl tert-butyl ether;(b) 5-40% by volume of isopropyl tert-butyl ether; and(c) 5-40% by volume of sec-butyl tert-butyl ether,has a high octane number and reduces exhaust pollutants.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: August 28, 1984
    Assignee: Veba Oel AG
    Inventors: Hartmut Bruderreck, Gunter Deininger, Klaus Gottlieb, Friedel-Heinrich Wehmeier, Manfred Haselhorst