Patents by Inventor David Leggett

David Leggett 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: 20150183756
    Abstract: The invention provides naphthofuran compounds, polymorphs of naphthofuran compounds, naphthofuran compounds in particle form, purified compositions that contain one or more naphthofuran compounds, purified compositions that contain one or more naphthofuran compounds in particle form, methods of producing these naphthofuran compounds, polymorphs, purified compositions and/or particle forms, and methods of using these naphthofuran compounds, polymorphs, purified compositions and/or particle forms to treat subjects in need thereof.
    Type: Application
    Filed: March 10, 2015
    Publication date: July 2, 2015
    Applicant: BOSTON BIOMEDICAL, INC.
    Inventors: Chiang Jia Li, David Leggett, Youzhi Li, Wei Li
  • Publication number: 20150018410
    Abstract: The present invention relates to a novel naphtho class of compounds as Stat3 pathway inhibitors and as cancer stem cell inhibitors; to methods of using such compounds to treat cancer; to methods of using such compounds to treat disorders in a mammal related to aberrent Stat3 pathway activity; to pharmaceutical compositions containing such compounds.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Inventors: Zhiwei Jiang, Chiang Jia Li, Wei Li, David Leggett
  • Patent number: 8877803
    Abstract: The present invention relates to a novel naphtho class of compounds as Stat3 pathway inhibitors and as cancer stem cell inhibitors; to methods of using such compounds to treat cancer; to methods of using such compounds to treat disorders in a mammal related to aberrant Stat3 pathway activity; to pharmaceutical compositions containing such compounds.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: November 4, 2014
    Assignee: Boston Biomedical, Inc.
    Inventors: Zhiwei Jiang, Chiang Jia Li, Wei Li, David Leggett
  • Publication number: 20130034591
    Abstract: The invention provides naphthofuran compounds, polymorphs of naphthofuran compounds, naphthofuran compounds in particle form, purified compositions that contain one or more naphthofuran compounds, purified compositions that contain one or more naphthofuran compounds in particle form, methods of producing these naphthofuran compounds, polymorphs, purified compositions and/or particle forms, and methods of using these naphthofuran compounds, polymorphs, purified compositions and/or particle forms to treat subjects in need thereof.
    Type: Application
    Filed: March 21, 2011
    Publication date: February 7, 2013
    Applicant: Boston Biomedical, Inc.
    Inventors: Chiang Jia Li, David Leggett, Youzhi Li, Wei Li
  • Publication number: 20130028944
    Abstract: The invention provides naphthofuran compounds, polymorphs of naphthofuran compounds, naphthofuran compounds in particle form, purified compositions that contain one or more naphthofuran compounds, purified compositions that contain one or more naphthofuran compounds in particle form, methods of producing these naphthofuran compounds, polymorphs, purified compositions and/or particle forms, and methods of using these naphthofuran compounds, polymorphs, purified compositions and/or particle forms to treat subjects in need thereof.
    Type: Application
    Filed: March 21, 2011
    Publication date: January 31, 2013
    Applicant: Boston Biomedical, Inc.
    Inventors: Chiang Jia Li, David Leggett, Youzhi Li, Wei Li
  • Publication number: 20110112180
    Abstract: The present invention relates to a novel naphtho class of compounds as Stat3 pathway inhibitors and as cancer stem cell inhibitors; to methods of using such compounds to treat cancer; to methods of using such compounds to treat disorders in a mammal related to aberrent Stat3 pathway activity; to pharmaceutical compositions containing such compounds.
    Type: Application
    Filed: September 10, 2008
    Publication date: May 12, 2011
    Applicant: Boston Biomedical, Inc.
    Inventors: Zhiwei Jiang, Chiang Jia Li, Wei Li, David Leggett
  • Publication number: 20020030086
    Abstract: An improved pitch and roll mechanism is disclosed herein which provides for increased flexibility, stability, and accuracy of motion in positioning a miniaturized electronic component in a flip chip bonding system. The pitch and roll mechanism generally includes a pitch axis assembly comprising a plurality of bearing surfaces, each possessing a circular curvature, and at least one roller bearing in operative contact with at least one of the aforementioned pitch axis bearing surfaces. In addition, a roll axis assembly, mounted at a right angle, or perpendicularly, to the pitch axis assembly, is provided. The roll axis assembly typically includes a plurality of bearing surfaces, each possessing a circular curvature, and at least one roller bearing in operative contact with at least one of the aforementioned roll axis bearing surfaces. The curvatures of the pitch and roll axis bearing surfaces are such that a single, coincident center of rotation for both the pitch and roll axis assemblies is created.
    Type: Application
    Filed: May 4, 2001
    Publication date: March 14, 2002
    Inventors: Steven M. Solon, David Leggett
  • Patent number: 4899921
    Abstract: An aligner bonder for joining parts of a miniature semiconductor component, for example, comprises supports for holding the parts with surfaces facing, positioning provisions for adjusting relative positions and inclinations of the parts and for bringing the facing surfaces together for bonding. A first inclined two-sided mirror directs light from a pair of illuminators to the surfaces. Images of the surfaces are diverted from the inclined reflective mirror faces to optical paths and then to video cameras. Individual video circuitry and illuminator adjustments permit adjustment of each video image. The images are combined in a single video image displayed on a monitor. The supports for the parts are positionally adjusted to bring the video images into alignment. To adjust parallelism, autocollimators and associated reference image cross hairs project reference images via another inclined two-sided mirror to the surfaces of the parts or parallel reference surfaces.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: February 13, 1990
    Assignee: The American Optical Corporation
    Inventors: Zvi Bendat, David A. Leggett