Patents by Inventor Ruediger Prigge

Ruediger Prigge 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).

  • Cleaning composition containing hydrocarbon mixtures
    Patent number: 4734215
    Abstract: A cleansing composition, containing from 85 to 97 parts by weight of an non-aromatic hydrocarbon liquid having an atmospheric initial boiling point of at least 150.degree. C., and from 3 to 15 parts by weight of at least one alkylated aromatic containing at least one alkyl group with from 8 to 18 carbon atoms.
    Type: Grant
    Filed: May 13, 1986
    Date of Patent: March 29, 1988
    Assignee: Shell Oil Company
    Inventor: Ruediger Prigge