Patents by Inventor Tina Wong

Tina Wong 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: 10548769
    Abstract: Provided is a glaucoma valve, a casing for containing a glaucoma valve and a glaucoma drainage device including the glaucoma valve and/or the casing. The valve includes a flow channel having an inlet and an outlet and a valve member connected to the outlet of the flow channel. The valve member may be formed from a degradable polymer or a combination of degradable polymer and non-degradable polymer. The valve may have a first flow channel, the interior of which may be coated with a degradable polymer, such that in use, the polymer degrades to allow a greater flow of fluid through the flow channel. The valve may include a second flow channel, which may be arranged in parallel to the first flow channel. The casing may be formed from a degradable polymer, such as a biodegradable polymer.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 4, 2020
    Assignees: NANYANG TECHNOLOGICAL UNIVERSITY, SINGAPORE HEALTH SERVICES PTE LTD.
    Inventors: Subramanian Venkatraman, Lei Shang, Yin Chiang Freddy Boey, Tina Wong
  • Patent number: 10465189
    Abstract: The invention relates to a multilayered nanoparticle for delivery of RNA to a cell and methods of manufacturing and using the same. The multilayered nanoparticle has a core nanoparticle coated by alternating positively and negatively charged polymer layers, wherein the at least one of the negatively charged polymer layers is RNA.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: November 5, 2019
    Assignees: NANYANG TECHNOLOGICAL UNIVERSITY, SINGAPORE HEALTH SERVICES PTE LTD
    Inventors: Subramanian Venkatraman, Tzee Ling Tina Wong, Bjorn Neu
  • Patent number: 10272040
    Abstract: The present invention is directed to a liposomal formulation for ocular drug delivery comprising (i) liposomes comprising at least one lipid bilayer, and (ii) a prostaglandin drug and/or a prostaglandin derivative associated in the liposomes, wherein the liposomes have a mean diameter of less than 2???. The present invention is also directed to a pharmaceutical comprising the liposomal formulation and a method of producing the liposomal formulation for ocular drug delivery. Additionally, the present invention is directed to a method of treating or preventing an ocular disease, comprising administering the liposomal formulation or the pharmaceutical composition to a subject in need thereof.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: April 30, 2019
    Assignees: Nanyang Technological University, Singapore Health Services Pte Ltd
    Inventors: Subramanian Venkatraman, Jayaganesh V. Natarajan, Tina Wong, Yin Chiang Freddy Boey
  • Patent number: 9782346
    Abstract: Provided is a biodegradable ocular implant for sustained drug delivery, including a first layer comprising a first biodegradable polymer, wherein the first layer contains a drug dispersed or dissolved therein. A multi-layered biodegradable ocular implant is also disclosed.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: October 10, 2017
    Assignees: Nanyang Technological University, Singapore Health Services PTE LTD
    Inventors: Subramanian Venkatraman, Yin Chiang Freddy Boey, Tina Wong, Jodhbir Metha
  • Publication number: 20160319280
    Abstract: The invention relates to a multilayered nanoparticle for delivery of RNA to a cell and methods of manufacturing and using the same. The multilayered nanoparticle has a core nanoparticle coated by alternating positively and negatively charged polymer layers, wherein the at least one of the negatively charged polymer layers is RNA.
    Type: Application
    Filed: December 9, 2014
    Publication date: November 3, 2016
    Inventors: Subramanian Venkatraman, Tzee Ling Tina Wong, Bjorn Neu
  • Publication number: 20160206556
    Abstract: Provided is a biodegradable ocular implant for sustained drug delivery, including a first layer comprising a first biodegradable polymer, wherein the first layer contains a drug dispersed or dissolved therein. A multi-layered biodegradable ocular implant is also disclosed.
    Type: Application
    Filed: September 23, 2015
    Publication date: July 21, 2016
    Inventors: Subramanian VENKATRAMAN, Yin Chiang Freddy BOEY, Tina WONG, Jodhbir METHA
  • Patent number: 8751624
    Abstract: A system and method processes messages related to nodes in a network and provides reports according to those messages to allow analysis of the network.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: June 10, 2014
    Assignee: Packet Design, LLC
    Inventors: Van Jacobson, Tina Wong
  • Publication number: 20130309173
    Abstract: The present invention relates to methods and compositions for the modulation of wound healing and/or the production of extracellular membrane components by modulating the activity and/or amount of secreted protein acidic and rich in cysteine (SPARC) protein. The invention further provides methods for identifying compounds useful in the above-mentioned methods and compositions.
    Type: Application
    Filed: October 8, 2010
    Publication date: November 21, 2013
    Applicant: SingaporeHealth Services Pte. Ltd.
    Inventors: Tina Wong, Li-Fong Seet
  • Publication number: 20130216606
    Abstract: The present invention is directed to a liposomal formulation for ocular drug delivery comprising (i) liposomes comprising at least one lipid bilayer, and (ii) a prostaglandin drug and/or a prostaglandin derivative associated in the liposomes, wherein the liposomes have a mean diameter of less than 2???. The present invention is also directed to a pharmaceutical comprising the liposomal formulation and a method of producing the liposomal formulation for ocular drug delivery. Additionally, the present invention is directed to a method of treating or preventing an ocular disease, comprising administering the liposomal formulation or the pharmaceutical composition to a subject in need thereof.
    Type: Application
    Filed: August 12, 2011
    Publication date: August 22, 2013
    Applicants: SINGAPORE HEALTH SERVICES PTE LTD, NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Subramanian Venkatraman, Jayaganesh V. Natarajan, Tina Wong, Yin Chiang Freddy Boey
  • Publication number: 20130211314
    Abstract: Various embodiments of the invention relate to a glaucoma valve, a casing for containing a glaucoma valve and a glaucoma drainage device comprising the glaucoma valve and/or the casing. The valve includes a flow channel having an inlet and an outlet and a valve member connected to the outlet of the flow channel. The valve member may be formed from a degradable polymer or a combination of degradable polymer and non-degradable polymer. Various embodiments of the invention relate to a glaucoma valve, the valve having a first flow channel. The interior of the first flow channel may be coated with a degradable polymer, such that in use, the polymer degrades to allow a greater flow of fluid through the flow channel. In some embodiments, the valve includes a second flow channel, which may be arranged in parallel to the first flow channel. The first flow channel may be completely sealed with the polymer such that in use, the polymer degrades to allow fluid to flow through the first flow channel.
    Type: Application
    Filed: August 12, 2011
    Publication date: August 15, 2013
    Applicants: SINGAPORE HEALTH SERVICES PTE LTD, NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Subramanian Venkatraman, Lei Shang, Yin Chiang Freddy Boey, Tina Wong
  • Publication number: 20130209538
    Abstract: The present invention relates to a biodegradable ocular implant for sustained drug delivery, comprising a first layer comprising a first biodegradable polymer, wherein the first layer contains a drug dispersed or dissolved therein. A multi-layered biodegradable ocular implant is also disclosed.
    Type: Application
    Filed: August 12, 2011
    Publication date: August 15, 2013
    Applicants: SINGAPORE HEALTH SERVICES PTE LTD, NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Subramanian Venkatraman, Yin Chiang Freddy Boey, Tina Wong, Jodhbh Metha
  • Publication number: 20130064774
    Abstract: The present invention relates to methods and compositions for the modulation of wound healing and/or the production of extracellular membrane components by modulating the activity and/or amount of secreted protein acidic and rich in cysteine (SPARC) protein. The invention further provides methods for identifying compounds useful in the above-mentioned methods and compositions.
    Type: Application
    Filed: October 8, 2010
    Publication date: March 14, 2013
    Applicant: Singapore Health Services Pte. Ltd.
    Inventors: Tina Wong, Li-Fong Seet
  • Publication number: 20120244077
    Abstract: The present invention relates to methods and compositions for the modulation of wound healing and/or the production of extracellular membrane components by modulating the activity and/or amount of secreted protein acidic and rich in cysteine (SPARC) protein. The invention further provides methods for identifying compounds useful in the above-mentioned methods and compositions.
    Type: Application
    Filed: October 8, 2010
    Publication date: September 27, 2012
    Applicant: SINGAPORE HEALTH SERVICES PTE. LTD.
    Inventors: Tina Wong, Li-Fong Seet
  • Patent number: 7451205
    Abstract: A method and system for streaming media data to a mobile client device. Using information such as the previous locations of the mobile client device, a prediction is made of a future location of the client device. A server servicing the predicted location, such as the server closest to the predicted location, is identified. This server is informed of the impending arrival of the mobile device into the area serviced by the server. The server can thus obtain ahead of time the media stream needed for the client, so that the data are available to the client without disruption when the client moves to the predicted location. To account for uncertainty in the prediction, the data can also be directed to other servers that can service the predicted location.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: November 11, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Gene Cheung, Tina Wong, Susie J. Wee
  • Patent number: 7200402
    Abstract: A method for performing a soft-handoff in a mobile streaming media system, and a method for performing a hard-handoff in a mobile streaming media system are is disclosed. In the soft-handoff embodiment, the present invention detects that a channel quality between a mobile client and a first base station remains above a drop threshold and that a channel quality between the mobile client and a second base station increases from below to above an add threshold. The present embodiment then sends a first multiple description bitstream from the first base station to the mobile client and sends a complementary second multiple description bitstream from the second base station to the mobile client. This method thereby provides improved utilization of wireless bandwidth during soft-handoffs, in contrast to conventional systems where the same bitstream is transmitted from each base station.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: April 3, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John G. Apostolopoulos, Sujoy Basu, Gene Cheung, Rajendra Kumar, Sumit Roy, Wai-tan Tan, Susie J. Wee, Tina Wong, Bo Shen
  • Patent number: 6996618
    Abstract: A method for handing off to a second server, in either a fixed or mobile streaming media system, a multiple description streaming session between a first server and either a fixed or mobile client. In one embodiment, the present invention recites selecting a second server to receive a handoff of a multiple description streaming media session between the first server and the client. In this embodiment, the multiple description streaming media session is comprised of a first multiple description bitstream and a second multiple description bitstream. The present embodiment further recites receiving at the second server, the second multiple description bitstream for streaming to the client. This embodiment further recites sending the second multiple description bitstream from the second server to the client.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: February 7, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John G. Apostolopoulos, Sujoy Basu, Gene Cheung, Rajendra Kumar, Sumit Roy, Wai-tan Tan, Susie J. Wee, Tina Wong, Bo Shen
  • Patent number: 6941378
    Abstract: A method for assigning servers to provide multiple description bitstreams to a mobile client (in a mobile client environment) or to a fixed client (in a fixed client environment). In one embodiment, the present invention, upon receiving a request from a mobile client to have media data streamed thereto, analyzes a plurality of servers to determine a first candidate server for providing a first multiple description bitstream to the base station along a first path. The present method also determines a second candidate server for providing a second multiple description bitstream to the base station along a second path. The present method then sends a request to the first candidate server to provide the first multiple description bitstream to a mobile client through a base station along the first path, and also sends a request to the second candidate server to provide the second multiple description bitstream to the mobile client through the same base station along a second path.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: September 6, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John G. Apostolopoulos, Sujoy Basu, Gene Cheung, Rajendra Kumar, Sumit Roy, Wai-tan Tan, Susie J. Wee, Tina Wong, Bo Shen
  • Patent number: 6757735
    Abstract: A method and system for streaming media data to a fixed client and/or a mobile client. In one method embodiment, the present invention recites encoding media data to be streamed to a client into a first multiple description bitstream and into a second multiple description bitstream. The present method then determines the appropriate plurality of servers from a network of servers onto which the first and second multiple description bitstreams should be distributed. The present embodiment then recites distributing the first and second multiple description bitstreams to the appropriate plurality of servers positioned at intermediate nodes throughout a network such that a client is provided with access to the media data via a plurality of transmission paths. The present method is also well suited to redistribution of multiple description bitstreams to servers based upon time-varying demand, client movement, and the like.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: June 29, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John G. Apostolopulos, Sujoy Basu, Gene Cheung, Raj Kumar, Sumit Roy, Bo Shen, Wai-Tian Tan, Susie J. Wee, Tina Wong
  • Publication number: 20030065712
    Abstract: A method and system for streaming media data to a mobile client device. Using information such as the previous locations of the mobile client device, a prediction is made of a future location of the client device. A server servicing the predicted location, such as the server closest to the predicted location, is identified. This server is informed of the impending arrival of the mobile device into the area serviced by the server. The server can thus obtain ahead of time the media stream needed for the client, so that the data are available to the client without disruption when the client moves to the predicted location. To account for uncertainty in the prediction, the data can also be directed to other servers that can service the predicted location.
    Type: Application
    Filed: October 1, 2001
    Publication date: April 3, 2003
    Inventors: Gene Cheung, Tina Wong, Susie J. Wee
  • Publication number: 20030009589
    Abstract: A method for assigning servers to provide multiple description bitstreams to a mobile client (in a mobile client environment) or to a fixed client (in a fixed client environment). In one embodiment, the present invention, upon receiving a request from a mobile client to have media data streamed thereto, analyzes a plurality of servers to determine a first candidate server for providing a first multiple description bitstream to the base station along a first path. The present method also determines a second candidate server for providing a second multiple description bitstream to the base station along a second path. The present method then sends a request to the first candidate server to provide the first multiple description bitstream to a mobile client through a base station along the first path, and also sends a request to the second candidate server to provide the second multiple description bitstream to the mobile client through the same base station along a second path.
    Type: Application
    Filed: July 3, 2001
    Publication date: January 9, 2003
    Inventors: John G. Apostolopoulos, Sujoy Basu, Gene Cheung, Rajendra Kumar, Sumit Roy, Wai-tan Tan, Susie J. Wee, Tina Wong, Bo Shen