Patents by Inventor Pacifico Viernes Manalastas

Pacifico Viernes Manalastas 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).

  • Process for treatment of petroleum acids
    Patent number: 6767452
    Abstract: The invention is a process for decreasing the acidity of an organic acid containing petroleum oil, comprising contacting said petroleum oil containing organic acids with an effective amount of an alcohol and an effective trace amount of a base selected from Group IA and IIA metal carbonates, hydroxides, phosphates, biphosphates and mixtures of a hydroxide and phosphate and/or biphosphates at a temperature and under conditions sufficient to form the corresponding ester of said alcohol.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: July 27, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Pacifico Viernes Manalastas, Guido Sartori
  • Process for treatment of petroleum acids (LAW824)
    Patent number: 6190541
    Abstract: The invention is a process for decreasing the acidity of an organic acid containing petroleum oil, comprising contacting said petroleum oil containing organic acids with an effective amount of an alcohol and an effective trace amount of a base selected from Group IA and IIA metal carbonates, hydroxides, phosphates, and mixtures of a hydroxide and phosphate at a temperature and under conditions sufficient to form the corresponding ester of said alcohol.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: February 20, 2001
    Assignee: Exxon Research and Engineering Company
    Inventors: Michael Siskin, Pacifico Viernes Manalastas, Guido Sartori