Patents by Inventor Benjamin David Yip

Benjamin David Yip 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).

  • Solvent extraction for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition
    Patent number: 9328309
    Abstract: Disclosed is a process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: May 3, 2016
    Assignee: Chevron Oronite Company LLC
    Inventors: Cedrick Mahieux, Richard Pran Dutta, Curtis B. Campbell, Benjamin David Yip
  • SOLVENT EXTRACTION FOR PREPARING A SALT OF A SULFURIZED ALKYL-SUBSTITUTED HYDROXYAROMATIC COMPOSITION
    Publication number: 20140142015
    Abstract: Disclosed is a process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 22, 2014
    Applicant: CHEVRON ORONITE COMPANY LLC
    Inventors: Cedrick Mahieux, Richard Pran Dutta, Curtis B. Campbell, Benjamin David Yip