Patents by Inventor Said Saim

Said Saim 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: 5725756
    Abstract: A method to minimize catalyst deactivation rate and coke laydown, and maximize desired reaction rate in processing of industrially significant reactions under supercritical conditions to generate a reaction mixture stream including formed reaction products and reactants, said contacting at a desired catalyst temperature of about 1-1.2 critical temperature of the resulting reaction mixture and at a pressure between the critical pressure of the reaction mixture and a pressure necessary to establish said reaction mixture fluid density of greater than 0.65 gm/cc.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: March 10, 1998
    Assignee: Center For Research, Inc.
    Inventors: Bala Subramaniam, Said Saim
  • Patent number: 5690809
    Abstract: An improved process is provided for in situ mitigation of coke buildup and porous catalyst used for the processing of hydrocarbon feed stocks. The process exhibits improved catalyst activity over extended periods and the process comprises the pretreatment of hydrocarbon feed stocks to reduce impurities in the feed stocks in the form of peroxides and oxygen compounds that promote the formation of coke precursors, which precursors are typically in the form of olefinic oligomers. The process includes contacting the pretreated feed stream with a suitable catalyst under sub-critical, near-critical and supercritical conditions.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: November 25, 1997
    Assignee: Center for Research, Inc.
    Inventors: Bala Subramaniam, Said Saim, Michael C. Clark
  • Patent number: 5308481
    Abstract: The present invention relates to buckminsterfullerenes or related condensed carbon molecules covalently bonded to a polymer particle or a siliceous support particle and their use for packing media for column chromatography.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: May 3, 1994
    Assignee: Analytical Bio-Chemistry Laboratories, Inc.
    Inventors: David L. Stalling, Congyuan Guo, Kenneth C. Kuo, Kevin P. Kelly, Said Saim
  • Patent number: 5281406
    Abstract: A process has been developed to effectively separate and recover essentially pure amounts of both C.sub.60 and C.sub.70 from carbon soot and higher molecular weight fullerenes. This process first extracts the fullerenes from carbon soot and then sequentially separates the C.sub.60 and C.sub.70 molecules using high performance or low pressure adsorption chromatography packed column containing a gel polymer having aromaticity and a pore size ranging from 10 to 500 .ANG..In this process, a first stage of fractionation of the fullerenes is preferably accomplished by selective supercritical fluid extraction (SFE) of C.sub.60. Unrecovered C.sub.60 and C.sub.70 molecules are then extracted by supercritical fluid extraction at a higher pressure and/or higher temperature.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: January 25, 1994
    Assignee: Analytical Bio-Chemistry Laboratories, Inc.
    Inventors: David L. Stalling, Said Saim, Congyuan Guo, Kenneth Kuo
  • Patent number: 5198115
    Abstract: An integrated sample extraction and separation system includes a number of substantially identical supercritical fluid extraction modules and sample separation modules connected in common to a source of supercritical fluid and modifier and to instruments for sample analysis. Each of the supercritical fluid extraction columns is provided with separate pressure and temperature controls. Preferably, each sample separation module provides the choice of sample separation by dissolving the extracted sample in solvent, by adsorption, or by size exclusion chromatography. Either the supercritical fluid or various solvents may be used as the mobile phase in the sample separation step.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: March 30, 1993
    Assignee: Analytical Bio-Chemistry Laboratories, Inc.
    Inventors: David L. Stalling, Said Saim