Patents Assigned to Ethylk Petroleum Additives, Inc.
  • Oil-soluble phosphorus antiwear additives for lubricants
    Patent number: 4857214
    Abstract: Oil-soluble reaction products of inorganic phosphorus containing acids or anhydrides with a boron compound and ashless dispersants such as alkenyl succinimides are useful as antiwear/EP additives in lubricants.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: August 15, 1989
    Assignee: Ethylk Petroleum Additives, Inc.
    Inventors: Andrew G. Papay, Rolfe J. Hartley