Patents by Inventor C. Sowell

C. Sowell 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: 7308367
    Abstract: A method and system for identifying a defect or contamination on a surface of a material. The method and system involves providing a material, such as a semiconductor wafer, using a non-vibrating contact potential difference sensor to scan the wafer, generate contact potential difference data and processing that data to identify a pattern characteristic of the defect or contamination.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: December 11, 2007
    Assignee: Qcept Technologies, Inc.
    Inventors: M. Brandon Steele, Jeffrey Alan Hawthorne, Chunho Kim, David C. Sowell
  • Publication number: 20070004914
    Abstract: This invention provides compounds containing a 2-deoxy-2-amino-?-D-glucopyranose (glucosamine)glycosidically linked to an cyclic aminoalkyl (aglycon) group. The invention further provides methods for inducing an immune response using the compounds of the present invention in the presence or absence of an antigen. In addition, methods for treating disease with the compounds of the present invention with or without an antigen are also provided in this invention.
    Type: Application
    Filed: September 11, 2006
    Publication date: January 4, 2007
    Applicant: Corixa Corporation
    Inventors: David Johnson, Jory Baldridge, C. Sowell
  • Patent number: 7103482
    Abstract: A method and system for identifying a defect or contamination on a surface of a material. The method and system involves providing a material, such as a semiconductor wafer, using a non-vibrating contact potential difference sensor to scan the wafer, generate contact potential difference data and processing that data to identify a pattern characteristic of the defect or contamination.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: September 5, 2006
    Assignee: Qcept Technologies, Inc.
    Inventors: M. Brandon Steele, Jeffrey Alan Hawthorne, Chunho Kim, David C. Sowell
  • Publication number: 20050261317
    Abstract: Methods of inhibiting phosphatidylinositol 3-kinase delta isoform (PI3K?) activity, and methods of treating diseases, such as disorders of immunity and inflammation, in which PI3K? plays a role in leukocyte function are disclosed. Preferably, the methods employ active agents that selectively inhibit PI3K5, while not significantly inhibiting activity of other PI3K isoforms. Compounds are provided that inhibit PI3K? activity, including compounds that selectively inhibit PI3K? activity. Methods of using PI3K? inhibitory compounds to inhibit cancer cell growth or proliferation are also provided. Accordingly, the invention provides methods of using PI3K? inhibitory compounds to inhibit PI3K?-mediated processes in vitro and in vivo.
    Type: Application
    Filed: April 20, 2005
    Publication date: November 24, 2005
    Applicant: ICOS CORPORATION
    Inventors: Chanchal Sadhu, Ken Dick, Jennifer Treiberg, C. Sowell, Edward Kesicki, Amy Oliver
  • Publication number: 20050107600
    Abstract: This invention relates to processes for production of alkylamino glucosaminide phosphate compounds, and of disaccharide compounds, including various novel intermediates and intermediate processes. In one aspect, glycosyl halides are produced by reaction of an O-silyl glycoside with a dihalomethyl alkyl ether.
    Type: Application
    Filed: July 21, 2004
    Publication date: May 19, 2005
    Applicant: Corixa Corporation, a corporation of the state of Delaware
    Inventors: David Johnson, Craig Johnson, Helene Bazin-Lee, C. Sowell
  • Publication number: 20040241890
    Abstract: A method and system for identifying a defect or contamination on a surface of a material. The method and system involves providing a material, such as a semiconductor wafer, using a non-vibrating contact potential difference sensor to scan the wafer, generate contact potential difference data and processing that data to identify a pattern characteristic of the defect or contamination.
    Type: Application
    Filed: February 3, 2004
    Publication date: December 2, 2004
    Applicant: QCEPT TECHNOLOGIES, INC.
    Inventors: M. Brandon Steele, Jeffrey Alan Hawthorne, Chunho Kim, David C. Sowell
  • Patent number: 5533107
    Abstract: The present invention is a method that enables a business with multiple locations within a LATA to use a single number for its service. All callers dial the same number to reach the subscriber's business, and a network routes the calls to the most appropriate subscriber location based on the geographic location of the caller, time of day, day of week, and/or percent distribution among subscriber locations. The geographic location of the caller is determined using the calling party number (NPA-NXX-XXXX) and either mapping this number to a wire center (using the NPA-NXX) or to a block group (using the entire NPA-NXX-XXXX). An advantage of Area Number Calling is the granularity of block group routing. Block groups are defined by the Census Bureau and typically encompass a much smaller geographic area than a wire center. Block groups are defined by the Census Bureau for the entire United States. Block groups tend to encompass four to twelve blocks, and they honor natural boundaries, like rivers.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: July 2, 1996
    Assignee: BellSouth Corporation
    Inventors: Janine M. Irwin, James M. Seymour, Iris Y. Chen, James M. Davis, David C. Sowell, Nailesh B. Desai, Julia B. Torbert
  • Patent number: D992911
    Type: Grant
    Filed: July 6, 2022
    Date of Patent: July 25, 2023
    Inventor: Lei C. Sowell