Patents by Inventor Stephen G. Casmer

Stephen G. Casmer 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).

  • Patent number: 7528089
    Abstract: The present invention includes a microporous or mesoporous composition of matter in which the composition is formed continuously or semi-continuously in a heated reactor zone, including a rotary calciner or a rotary screw as a means for conveying the synthesis mixture, at a temperature between 200° C. and 500° C. with a residence time less than 24 hours. The reagents are solid and liquid reagents in which the solid reagents have a weight percent between 45% and 98% of the total reagents. The invention also includes a continuous or semi-continuous process for the hydrothermal manufacture of the microporous or mesoporous composition.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: May 5, 2009
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ivy D. Johnson, Kirk D. Schmitt, Steven T. Ragomo, Stephen G. Casmer
  • Patent number: 6869587
    Abstract: This invention relates to a novel synthetic porous crystalline molecular sieve material, MCM-65, to a reaction mixture and method for its preparation, and to use of the MCM-65 in catalytic conversion of organic compounds. The crystalline material exhibits a distinctive X-ray diffraction pattern as shown in Table 1.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: March 22, 2005
    Assignee: ExxonMobil Chemical Patents Inc
    Inventors: Sandeep Singh Dhingra, Charles T. Kresge, Stephen G. Casmer
  • Patent number: 6787124
    Abstract: A new synthetic porous crystalline material, designated EMM-1, is disclosed having, in its calcined form, the X-ray diffraction pattern of Table 2 above. Also disclosed are methods of making EMM-1 in the presence of HF using various organic nitrogen compounds as directing agents. Aluminum-containing EMM-1 can be produced either by inclusion of Al in the synthesis, or by incorporation of B or Ga in the synthesis, followed by post treatment with aluminum nitrate or other sources of Al. EMM-1 is useful as an acid catalyst and as an adsorbent.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: September 7, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Arthur W. Chester, Sandeep S. Dhingra, Stephen G. Casmer
  • Patent number: 6723300
    Abstract: In a process for synthesizing a porous crystalline material, a mixture capable of forming said material is prepared wherein the mixture comprises sources of water, an oxide of a tetravalent element Y, preferably silicon, an oxide of a trivalent element X, wherein X is selected from the group consisting of aluminum, boron, gallium, iron, and indium, fluoride ions, and an organonitrogen cation RNm+ capable of directing the synthesis of said material, wherein the molar ratio of fluoride ions to organonitrogen cations RNm+ in said mixture is greater than 1.15 m but less than 2.5 m. The mixture is maintained under crystallization conditions until crystals of said material are formed and the resultant crystalline material is recovered.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: April 20, 2004
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Kirk D. Schmitt, Stephen G. Casmer
  • Publication number: 20040047802
    Abstract: This invention relates to a novel synthetic porous crystalline molecular sieve material, MCM-65, to a reaction mixture and method for its preparation, and to use of the MCM-65 in catalytic conversion of organic compounds.
    Type: Application
    Filed: June 27, 2003
    Publication date: March 11, 2004
    Inventors: Sandeep Singh Dhingra, Charles T. Kresge, Stephen G. Casmer
  • Publication number: 20030190282
    Abstract: In a process for synthesizing a porous crystalline material, a mixture capable of forming said material is prepared wherein the mixture comprises sources of water, an oxide of a tetravalent element Y, preferably silicon, an oxide of a trivalent element X, wherein X is selected from the group consisting of aluminum, boron, gallium, iron, and indium, fluoride ions, and an organonitrogen cation RNm+ capable of directing the synthesis of said material, wherein the molar ratio of fluoride ions to organonitrogen cations RNm+ in said mixture is greater than 1.15 m but less than 2.5 m. The mixture is maintained under crystallization conditions until crystals of said material are formed and the resultant crystalline material is recovered.
    Type: Application
    Filed: February 14, 2003
    Publication date: October 9, 2003
    Inventors: Kirk D. Schmitt, Stephen G. Casmer
  • Publication number: 20030185751
    Abstract: A new synthetic porous crystalline material, designated EMM-1, is disclosed having, in its calcined form, the X-ray diffraction pattern of Table 2 above. Also disclosed are methods of making EMM-1 in the presence of HF using various organic nitrogen compounds as directing agents. Aluminum-containing EMM-1 can be produced either by inclusion of Al in the synthesis, or by incorporation of B or Ga in the synthesis, followed by post treatment with aluminum nitrate or other sources of Al. EMM-1 is useful as an acid catalyst and as an adsorbent.
    Type: Application
    Filed: February 14, 2003
    Publication date: October 2, 2003
    Inventors: Arthur W. Chester, Sandeep S. Dhingra, Stephen G. Casmer