Patents by Inventor Marvin S. Yu

Marvin S. Yu 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).

  • Publication number: 20080194887
    Abstract: A method of separating at least a first non-fluorous compound from a mixture of compounds including at least the first non-fluorous compound and a second fluorous compound includes: charging the of compounds to a non-fluorous solid (stationary) phase and eluting with a fluorous eluting fluid (mobile phase). In one embodiment, the non-fluorous solid phase is polar in nature. The method can further include a second phase elution with a suitable organic solvent.
    Type: Application
    Filed: March 13, 2008
    Publication date: August 14, 2008
    Inventors: DENNIS P. CURRAN, MASATO MATSUGI, MARVIN S. YU
  • Patent number: 7364908
    Abstract: A method of separating at least a first non-fluorous compound from a mixture of compounds including at least the first non-fluorous compound and a second fluorous compound includes: charging the of compounds to a non-fluorous solid (stationary) phase and eluting with a fluorous eluting fluid (mobile phase). In one embodiment, the non-fluorous solid phase is polar in nature. The method can further include a second phase elution with a suitable organic solvent. A method conducting a chemical reaction, includes: mixing at least a first fluorous compound and a second compound, the first fluorous compound differing in fluorous nature from the second compound; exposing the first mixture to conditions to convert at least one of the first fluorous compound and the second compound to give a second mixture containing at least a third compound, charging the second mixture to a non-fluorous solid phase; and eluting with a fluorous fluid.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: April 29, 2008
    Assignees: University of Pittsburgh - Of the Commonwealth System of Higher Education, Fluorous Technologies Inc.
    Inventors: Dennis P. Curran, Masato Matsugi, Marvin S. Yu
  • Patent number: 7060850
    Abstract: The present invention includes methods and compositions for increasing the fluorous nature of an organic compound by reacting it with at least one fluorous compound to produce a fluorous tagged organic compound. The increased fluorous nature of the fluorous tagged organic compound can then be utilized to separate the fluorous organic compound from untagged reagents, reactants, catalysts and/or products derived therefrom. The resultant fluorous tagged organic compound can be subjected to subsequent chemical transformations, wherein the fluorous nature of the tagged compound is utilized to increase the ease of separation of the fluorous tagged organic compound from untagged reagents, reactants, catalysts and/or products derived therefrom, after each chemical transformation.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: June 13, 2006
    Assignee: Fluorous Technologies Incorporated
    Inventors: Wei Zhang, Zhiyong Luo, Tadamichi Nagashima, Christine Hiu-Tung Chen, Marvin S. Yu
  • Publication number: 20040073054
    Abstract: The present invention includes methods and compositions for increasing the fluorous nature of an organic compound by reacting it with at least one fluorous compound to produce a fluorous tagged organic compound. The increased fluorous nature of the fluorous tagged organic compound can then be utilized to separate the fluorous organic compound from untagged reagents, reactants, catalysts and/or products derived therefrom. The resultant fluorous tagged organic compound can be subjected to subsequent chemical transformations, wherein the fluorous nature of the tagged compound is utilized to increase the ease of separation of the fluorous tagged organic compound from untagged reagents, reactants, catalysts and/or products derived therefrom, after each chemical transformation.
    Type: Application
    Filed: July 11, 2003
    Publication date: April 15, 2004
    Inventors: Wei Zhang, Zhiyong Luo, Tadamichi Nagashima, Christine Hiu-Tung Chen, Marvin S. Yu