Patents by Inventor Hul Chen

Hul Chen 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: 20090239762
    Abstract: A new aptamer approach for the recognition of specific small cell lung cancer (SCLC) cell surface molecular markers relies on cell-based systematic evolution of ligands by exponential enrichment (cell-SELEX) to evolve aptamers for whole live cells that express a variety of surface markers representing molecular differences among cancer cells. When applied to different lung cancer cells including those from patient samples, these aptamers bind to SCLC cells with high affinity and specificity in different assay formats. When conjugated with magnetic and fluorescent nanoparticles, the aptamer nano-conjugates could effectively extract SCLC cells from mixed cell media for isolation, enrichment, and sensitive detection.
    Type: Application
    Filed: February 5, 2009
    Publication date: September 24, 2009
    Inventors: Weihong Tan, Hul Chen
  • Publication number: 20090025749
    Abstract: A substrate handler is provided. In one embodiment, the substrate handler includes a first and second carriage coupled to a rail. A first robot having at least two grippers is attached to the first carrier. A second robot having at least one gripper is coupled to the second carriage. The first carriage is independently positionable along the rail relative to the second carriage. As each carriage has a separate actuator, the movements of the first and second robot are decoupled, thereby allowing increased throughput. The substrate handler is particularly suitable for using in a planarization system having an integrated substrate cleaner.
    Type: Application
    Filed: October 6, 2008
    Publication date: January 29, 2009
    Inventors: Joseph Yudoovsky, Hul Chen
  • Publication number: 20050197299
    Abstract: The present invention relates to peptidomimetic compounds useful as protease inhibitors, particularly as serine protease inhibitors and more particularly as hepatitis C NS3 protease inhibitors; intermediates thereto; their preparation including novel steroselective processes to intermediates. The invention is also directed to pharmaceutical compositions and to methods for using the compounds for inhibiting HCV protease or treating a patient suffering from an HCV infection or physiological condition related to the infection. Also provided are pharmaceutical combinations comprising, in addition to one or more HCV serine protease inhibitors, one or more interferons exhibiting anti-HCV activity and/or one or more compounds having anti HCV activity and a pharmaceutically acceptable carrier, and methods for treating or preventing a HCV infection in a patient using the compositions. The present invention is also directed to a kit or pharmaceutical pack for treating or preventing HCV infection in a patient.
    Type: Application
    Filed: August 31, 2001
    Publication date: September 8, 2005
    Inventors: Robert Babine, Shu-Hul Chen, Jason Lamar, Nancy Snyder, Xicheng Sun, Mark Tebbe, Frantz Victor, Q. Wang, Yvonne Yip, Ivan Collado, Cristina Garcia-Paredes, Raymond Parker, Ling Jing, Deqi Guo, John Glass