Patents by Inventor Bernard George Silbernagel

Bernard George Silbernagel 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).

  • Lube basestock with excellent low temperature properties and a method for making
    Patent number: 6676827
    Abstract: A method for producing a lube basestock from a waxy feed is disclosed in which a feed containing to 50 wt % or more of wax is hydrotreated and stripped to lower the nitrogen and sulfur content of the feed. The feed is then hydroisomerized under conditions to 370° C. hydrocatalytically dewaxed with a catalyst comprising a mixture of a catalytically active metal on a zeolite dewaxing catalyst and an amorphous catalyst, or alternatively is solvent dewaxed and then hydrocatalytically dewaxed with the just described catalyst.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: January 13, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: William John Murphy, Ian Alfred Cody, Bernard George Silbernagel
  • LUBE BASESTOCK WITH EXCELLENT LOW TEMPERATURE PROPERTIES AND A METHOD FOR MAKING
    Publication number: 20030226785
    Abstract: A method for producing a lube basestock from a waxy feed is disclosed in which a feed containing to 50 wt % or more of wax is hydrotreated and stripped to lower the nitrogen and sulfur content of the feed. The feed is then hydroisomerized under conditions to 370° C. hydrocatalytically dewaxed with a catalyst comprising a mixture of a catalytically active metal on a zeolite dewaxing catalyst and an amorphous catalyst, or alternatively is solvent dewaxed and then hydrocatalytically dewaxed with the just described catalyst.
    Type: Application
    Filed: January 15, 2003
    Publication date: December 11, 2003
    Inventors: William John Murphy, Ian Alfred Cody, Bernard George Silbernagel
  • Process for making a lube basestock with excellent low temperature properties
    Patent number: 6620312
    Abstract: A method for producing a lube basestock from a waxy feed is disclosed in which a feed containing to 50 wt % or more of wax is hydrotreated and stripped to lower the nitrogen and sulfur content of the feed. The feed is then hydroisomerized under conditions to 370° C. hydrocatalytically dewaxed with a catalyst comprising a mixture of a catalytically active metal on a zeolite dewaxing catalyst and an amorphous catalyst, or alternatively is solvent dewaxed and then hydrocatalytically dewaxed with the just described catalyst.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: September 16, 2003
    Assignee: Exxon Research and Engineering Company
    Inventors: William John Murphy, Ian Alfred Cody, Bernard George Silbernagel