Patents by Inventor Hubert P. Vidrine

Hubert P. Vidrine 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 improving the effectiveness of process catalyst
    Patent number: 5648305
    Abstract: This invention relates to a process for improving the effectiveness of a refinery process catalyst. The process comprises treating the refinery process catalyst with an effective amount of reducing agent selected from the group consisting of hydrazine, oximes, hydroxylamines, carbohydrazide, erythorbic acid, and mixtures thereof.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: July 15, 1997
    Inventors: William D. Mansfield, Todd L. Foret, Hubert P. Vidrine
  • Process for reducing the level of sulfur in a refinery process stream and/or crude oil
    Patent number: 5552036
    Abstract: This invention relates to a process for reducing the sulfur in a refinery process stream and/or crude oil, which comprises treating said refinery process stream and/or crude oil with an effective sulfur reducing amount of a reducing agent selected from the group consisting of hydrazine, oximes, hydroxylamines, carbohydrazide, erythorbic acid, and mixtures thereof wherein the reducing agent or the hydrocarbon treated has a temperature of at least 50.degree. C.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: September 3, 1996
    Inventors: Todd L. Foret, William D. Mansfield, Hubert P. Vidrine