Patents Assigned to Versitech Limited
  • Publication number: 20090247503
    Abstract: Provided herein are 5-demethoxyfumagillol and its derivatives. Also provided herein are methods of making the 5-demethoxyfumagillol and derivatives. Also provided herein are biological activities of the 5-demethoxyfumagillol and derivatives and methods of using same for treating diseases.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 1, 2009
    Applicants: Versitech Limited, Morningside Ventures Limited
    Inventors: Dan Yang, Chengyong Li, Shiwu Chen
  • Publication number: 20090111734
    Abstract: Compositions that include nanoscale structured materials or precursors thereof (e.g., self-assembling peptides) are described. The compositions can include other substances (e.g., a vasoconstrictor). Also described are methods for using the compositions to promote hemostasis, to protect the skin or wounds from contamination, to decontaiminate a site upon removal of previously applied compositions that provided a protective coating, and to inhibit the movement of bodily substances other than blood. The compositions are also useful in isolating tissue, removing tissue, preserving tissue (for, e.g., subsequent transplantation or reattachment), and as bulking, stabilizing or hydrating agents. Medical devices that include the compositions (e.g., a stent or catheter), bandages or other wound dressings, sutures, and kits that include the compositions are also described.
    Type: Application
    Filed: August 27, 2008
    Publication date: April 30, 2009
    Applicants: Massachusetts Institute of Technology, Versitech Limited
    Inventors: Rutledge Ellis-Behnke, Shuguang Zhang, Gerald Schneider, Kwok-Fai So, David Tay, Yu-Xiang Liang
  • Patent number: 7521071
    Abstract: The present invention provides an oral formulation of arsenic trioxide (As2O3) for the treatment of a variety of hematological malignancies, including acute myeloid leukemia (AML) and acute promyelocytic leukemia (APL). The present invention also provides methods for making the oral arsenic trioxide formulation. Methods of using the oral arsenic trioxide formulation are also described.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: April 21, 2009
    Assignee: Versitech Limited
    Inventors: Cyrus Rustam Kumana, Yok-Lam Kwong
  • Publication number: 20080274560
    Abstract: Provided herein are compounds or hypochlorous acid probes which can be used as reagents for measuring, detecting and/or screening, directly or indirectly, hypochlorous acid or hypochlorite. Provided also herein are methods that can be used to measure, directly or indirectly, the amount of hypochlorous acid or hypochlorite in chemical samples and biological samples such as cells and tissues in living organisms. Specifically, the methods include the steps of contacting the hypochlorous acid probes disclosed herein with the samples to form one or more fluorescent compounds, and measuring fluorescence properties of the fluorescent compounds. Provided also herein are high-throughput screening fluorescent methods for detecting or screening hypochlorous acid or compounds that can increase or decrease, directly or indirectly, the level of hypochlorous acid or hypochlorite in chemical and biological samples.
    Type: Application
    Filed: February 21, 2008
    Publication date: November 6, 2008
    Applicants: Versitech Limited, Morningside Ventures Limited
    Inventors: Dan Yang, Zhen-Ning Sun, Yan Chen, Fengqin Liu
  • Patent number: 7433597
    Abstract: A method of deflection routing a packet in an all-optical communication network is described. Routing and destination information is contained in the address header of the packet and is generated by the originating node while still in the electrical domain before conversion to the optical domain. Receiving nodes process the address header in the optical domain using the information for their node from the address header. The address header is comprised of N node fields where N is the number of nodes on the optical network. Each node field contains routing information for a node on the optical network. Each node field contains at least one port field containing routing and address information associated with a port in the node.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: October 7, 2008
    Assignees: The Hong Kong Polytechnic University, Versitech Limited
    Inventors: Ping-Kong Alex Wai, On-Kwok Victor Li, Chun-Yin Li, Xiaochun Yuan
  • Publication number: 20080146513
    Abstract: Provided herein are self-assembling compounds that can form ion channels in lipid bilayers or cell membranes and ion-channel-forming compositions comprising the self-assembling compounds. Also provided are methods of making and using the ion channels formed from a plurality of molecules of the self-assembling compounds. Further, provided are methods of treating or preventing conditions and diseases that are related to the dysfunction of ion channels, including chloride channels.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 19, 2008
    Applicant: Versitech Limited
    Inventors: Dan Yang, Xiang Li
  • Publication number: 20080053575
    Abstract: The present invention relates generally to a shape memory and/or super-elastic material, such as a nickel titanium alloy. Additionally or alternatively, the present invention relates to a super-elastic or pseudo-elastic material that has an initial transition temperature Af above a body temperature. The shape memory material can have a super-elasticity or pseudo-elasticity property at a temperature below the initial transition temperature Af of the material. For example, the shape memory material can have its workable temperature for producing super-elasticity or pseudo-elasticity of about 0° C. to 15° C. below the initial transition temperature Af. The shape memory material can be malleable at a room temperature, and become super-elastic or pseudo-elastic at a body temperature. In addition, the present invention relates to a method of making a shape memory or a super-elastic material.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 6, 2008
    Applicant: Versitech Limited
    Inventors: Kenneth Man Chee Cheung, Kelvin Yeung, William Lu, Chi Chung
  • Patent number: 7306683
    Abstract: The present invention relates generally to a shape memory and/or super-elastic material, such as a nickel titanium alloy. Additionally or alternatively, the present invention relates to a super-elastic or pseudo-elastic material that has an initial transition temperature Af above a body temperature. The shape memory material can have a super-elasticity or pseudo-elasticity property at a temperature below the initial transition temperature Af of the material. For example, the shape memory material can have its workable temperature for producing super-elasticity or pseudo-elasticity of about 0° C. to 15° C. below the initial transition temperature Af. The shape memory material can be malleable at a room temperature, and become super-elastic or pseudo-elastic at a body temperature. In addition, the present invention relates to a method of making a shape memory or a super-elastic material.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: December 11, 2007
    Assignees: Versitech Limited, The City University of Hong Kong
    Inventors: Kenneth Man Chee Cheung, Kelvin Wai Kwok Yeung, William Weijia Lu, Chl Yuen Chung