Patents by Inventor Penny K. Eidem

Penny K. Eidem 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).

  • Reducing the metals content of petroleum feedstocks
    Patent number: 4752382
    Abstract: The metals content of petroleum feedstocks, particularly those feedstocks comprising maltenes and asphaltenes, is reduced prior to further processing by contacting the feedstock with phosphoric acid.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: June 21, 1988
    Assignee: Chevron Research Company
    Inventor: Penny K. Eidem
  • Air-blowing asphalt using hydrohalic acid catalysts
    Patent number: 4618373
    Abstract: A process for air-blowing asphalt in the presence of hydrohalic acids, particularly hydrobromic acid, and an asphalt composition comprising a major amount of asphalt and a minor but effective amount of hydrohalic acid is disclosed.
    Type: Grant
    Filed: February 28, 1984
    Date of Patent: October 21, 1986
    Assignee: Chevron Research Company
    Inventor: Penny K. Eidem
  • Air blowing asphalt using sulfonic acid catalyst
    Patent number: 4440579
    Abstract: A process for air blowing asphalt in the presence of organic sulfonic acids and an asphalt composition comprising a major amount of asphalt and a minor but effective amount of organic sulfonic acid.
    Type: Grant
    Filed: November 30, 1982
    Date of Patent: April 3, 1984
    Assignee: Chevron Research Company
    Inventor: Penny K. Eidem