Patents by Inventor Robert B. Calvert

Robert B. Calvert 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).

  • Automotive Lubricant Composition
    Publication number: 20130017985
    Abstract: Lubricant compositions for use in automotive engine oils comprising a combination of a specific base stock or mixture of base stocks and a friction reducing additive to improve fuel economy and fuel economy longevity of the automotive engine oil. The friction reducing additive is a specific partial polyol ester and may also include a specific saturated primary amide.
    Type: Application
    Filed: May 15, 2012
    Publication date: January 17, 2013
    Applicants: Uniqema Americas LLC
    Inventors: Christopher Donaghy, Robert B. Calvert, Andrew S. Oldfield
  • Method for producing highly siliceous zeolites
    Patent number: 4923690
    Abstract: Large pore size zeolites produced with organic cations in the synthesis mixture are synthesized with high silica:alumina ratios by terminating the crystallization when the product is partly crystalline, preferably 30% to 90 % crystalline by X-ray diffraction measurement. The method is particularly useful with zeolite beta to produce a partly crystalline product with higher silica:alumina ratio by direct synthesis.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: May 8, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Ernest W. Valyocsik, Stephen S. Wong, Robert B. Calvert
  • Process for the preparation of zeolite Beta using dibenzyldimethylammonium ions and the product produced
    Patent number: 4642226
    Abstract: This invention relates to a new and improved form of crystalline silicate having the structure of zeolite Beta, to a new and useful improvement in synthesizing said crystalline silicate and to use of said crystalline silicate prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: February 10, 1987
    Assignee: Mobil Oil Corporation
    Inventors: Robert B. Calvert, Clarence D. Chang, Mae K. Rubin, Ernest W. Valyocsik
  • Synthesis of ZSM-5 utilizing a mixture of quaternary ammonium ions and amines
    Patent number: 4495166
    Abstract: A novel process for the preparation of ZSM-5 and ZSM-11 utilizing a mixture of both quaternary ammonium ions and amines in the forming solution is disclosed in order to enhance the rate of crystallization.
    Type: Grant
    Filed: July 19, 1982
    Date of Patent: January 22, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Robert B. Calvert, Louis D. Rollmann