Patents by Inventor Yehia Mechref

Yehia Mechref 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: 20050239212
    Abstract: A system and method of incubating a liquid is provided. The system is well-suited for incubating small volumes of liquid at high temperatures. The liquid may be a reaction mixture comprising a glycoprotein. During the incubation process, oligosaccharides may be removed from the glycoprotein.
    Type: Application
    Filed: June 13, 2005
    Publication date: October 27, 2005
    Inventors: Yunping Huang, Yehia Mechref, Milos Novotny
  • Patent number: 6911182
    Abstract: A device for placement of effluent comprises a substrate positioner, a deposition conduit, and a conduit positioner. The substrate positioner supports and positions a substrate on which effluent exiting from the deposition conduit is to be deposited. The conduit positioner moves an exit end of the deposition conduit relative to the substrate.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: June 28, 2005
    Assignee: Indiana University Research and Technology Corporation
    Inventors: Tony J. Tegeler, Yehia Mechref, Kirk S. Boraas, James P. Reilly, Milos V. Novotny
  • Patent number: 6881588
    Abstract: A fluid treatment device is disclosed for mixing first and second fluids. The first fluid may be a treatment liquid that is contained in a container and that is used to change a property, such as the pH, density or ionic strength, of the second fluid. In some illustrative embodiments, the fluid treatment device is used to create an effluent by adding a buffer material and/or a matrix material to an analyte for subsequent MALDI MS analysis of the effluent. A mixing space is defined in a container between ends of first and second conduits. In some embodiments, a junction member couples together the ends of the first and second conduits. The junction member has a main passage that receives the ends of the first and second conduits. The junction member has at least one opening that provides fluid communication between an interior region of the container and the mixing space.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: April 19, 2005
    Assignee: Indiana University Research & Technology Corporation
    Inventors: Tony J. Tegeler, Yehia Mechref, Milos V. Novotny
  • Publication number: 20040076549
    Abstract: A device for placement of effluent comprises a substrate positioner, a deposition conduit, and a conduit positioner. The substrate positioner supports and positions a substrate on which effluent exiting from the deposition conduit is to be deposited. The conduit positioner moves an exit end of the deposition conduit relative to the substrate.
    Type: Application
    Filed: October 18, 2002
    Publication date: April 22, 2004
    Inventors: Tony J. Tegeler, Yehia Mechref, Kirk S. Boraas, James P. Reilly, Milos V. Novotny
  • Publication number: 20040077101
    Abstract: A fluid treatment device is disclosed for mixing first and second fluids. The first fluid may be a treatment liquid that is contained in a container and that is used to change a property, such as the pH, density or ionic strength, of the second fluid. In some illustrative embodiments, the fluid treatment device is used to create an effluent by adding a buffer material and/or a matrix material to an analyte for subsequent MALDI MS analysis of the effluent. A mixing space is defined in a container between ends of first and second conduits. In some embodiments, a junction member couples together the ends of the first and second conduits. The junction member has a main passage that receives the ends of the first and second conduits. The junction member has at least one opening that provides fluid communication between an interior region of the container and the mixing space.
    Type: Application
    Filed: October 18, 2002
    Publication date: April 22, 2004
    Inventors: Tony J. Tegeler, Yehia Mechref, Milos V. Novotny