Patents by Inventor Swietlik Joseph Marian

Swietlik Joseph Marian 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).

  • Lubricating oil compositions
    Patent number: 3962104
    Abstract: Lubricating oils containing as an ashless detergent a quaternary ammonium salt derived from an organic acid, (e.g. carboxylic acid, sulphonic acid, alkyl phenol or phosphosulphurised hydrocarbon) and a cation obtained by the reaction of a tertiary amine, olefin oxide and water.
    Type: Grant
    Filed: June 24, 1974
    Date of Patent: June 8, 1976
    Assignee: Exxon Research and Engineering Company
    Inventors: Swietlik Joseph Marian, Michael David Sexton