Patents by Inventor Shawn Michael Dougal

Shawn Michael Dougal 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).

  • Method for inhibiting corrosion using certain phosphorus and sulfur-free compounds
    Patent number: 6593278
    Abstract: The present invention relates to a method for inhibiting corrosion of corrosion-prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of certain sulfur and phosphorus-free aromatic compounds substituted with nitrogen, containing functional groups at the 5- or 3, 5-position, typically up to 1000 wppm, to the metal surface.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: July 15, 2003
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Mohsen S. Yeganeh, Shawn Michael Dougal, Guido Sartori, David Craig Dalrymple, Cheayao Zhang, Saul Charles Blum, Liza Marie Monette
  • Method for inhibiting corrosion using certain phosphorus and sulfur-free compounds
    Publication number: 20030012681
    Abstract: The present invention relates to a method for inhibiting corrosion of corrosion-prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of certain sulfur and phosphorus-free aromatic compounds substituted with nitrogen, containing functional groups at the 5- or 3, 5-position, typically up to 1000 wppm, to the metal surface.
    Type: Application
    Filed: July 13, 2001
    Publication date: January 16, 2003
    Inventors: Mohsen S. Yeganeh, Shawn Michael Dougal, Guido Sartori, David Craig Dalrymple, Cheayao Zhang, Saul Charles Blum, Liza Marie Monette