Patents by Inventor Patrick Tan

Patrick Tan 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: 20080052007
    Abstract: Classification of breast tumours into Estrogen Receptor positive and negative (ER+ and ER?) subtypes is an important distinction in the treatment of breast cancer. ER typing is frequently performed using expression profiles of genes whose expression is known to be affected by ER activity. Some tumours cannot confidently be assigned to a particular ER type based on such expression data. The present inventors have found that such “low confidence” tumours constitute a distinct biological subtype of breast tumours associated with significantly worse overall survival than high confidence tumours. Gene sets capable of distinguishing low confidence from high confidence tumours are provided, along with methods and apparatus for performing appropriate classification of breast tumours.
    Type: Application
    Filed: October 1, 2004
    Publication date: February 28, 2008
    Inventors: Kun Yu, Patrick Tan
  • Patent number: 7314811
    Abstract: A new method to prevent cracking at the corners of a semiconductor die during dicing is described. Dummy metal structures are fabricated at the corners of the die to prevent cracking. The design for the dummy metal structures can be generated automatically by a computer program.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: January 1, 2008
    Assignee: Chartered Semiconductor Manufacturing Ltd.
    Inventors: Patrick Tan, Kheng Chok Tee, David Vigar
  • Publication number: 20070059706
    Abstract: The inventors set out to identify a set of genes for use as prognostic markers for breast tumours which correlate with the Nottingham Prognostic Index (NPI). Initially they were unable to identify a single set of genes whose expression correlates with the NPI. However after segregating the dataset into molecular subcategories (estrogen receptor positive, estrogen receptor negative, and ErbB2 positive) they identified a set of 62 genes which are differentially expressed in tumours of different prognoses. Methods and apparatus for determining prognosis are provided. Also provided are methods of determining the response of tumours to chemotherapy involving comparing the expression levels of the predictive gene set before and after treatment.
    Type: Application
    Filed: October 1, 2004
    Publication date: March 15, 2007
    Inventors: Kun Yu, Patrick Tan
  • Publication number: 20070014318
    Abstract: Fluorescent screens and display systems and devices based on such screens using at least one excitation optical beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials and non-phosphor materials such as quantum dots. A screen may include a multi-layer dichroic layer.
    Type: Application
    Filed: January 19, 2006
    Publication date: January 18, 2007
    Inventors: Roger Hajjar, David Kindler, Patrick Tan, David Kent, Phillip Malyak
  • Patent number: 7089522
    Abstract: A design, device, system and process for placing slots in active regions (e.g., metal areas). Embodiments of the present invention improve the planarization of metal areas (e.g., lines) and insulators by reducing depressions (e.g., dishing) in the metal areas by including symmetric or square slots inside selected wide metal lines, by adhering to a set of placement rules. Embodiments reduce dishing in copper dual damascene structures. Embodiments reduce data processing requirements for designing and arranging the layout of IC devices and the slots.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: August 8, 2006
    Assignee: Chartered Semiconductor Manufacturing, Ltd.
    Inventors: Patrick Tan, Kheng Chok Tee, David Vigar, Tat Wei Chua
  • Publication number: 20060026473
    Abstract: In one embodiment, an apparatus comprises a scan circuit including at least a first and a second clock domain and a scan chain having a first plurality of scan cells positioned in the first clock domain and a second plurality of scan cells positioned in the second clock domain. A scan clock source, coupled to the scan chain, generates a first scan clock signal to the first plurality of scan cells and a second scan clock signal to the second plurality of scan cells. The first and the second clock signals have an inverted relationship.
    Type: Application
    Filed: July 29, 2004
    Publication date: February 2, 2006
    Inventor: Teck Wee Patrick Tan
  • Publication number: 20050196938
    Abstract: A new method to prevent cracking at the corners of a semiconductor die during dicing is described. Dummy metal structures are fabricated at the corners of the die to prevent cracking. The design for the dummy metal structures can be generated automatically by a computer program.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 8, 2005
    Inventors: Patrick Tan, Kheng Tee, David Vigar
  • Publication number: 20050170351
    Abstract: The invention provides a number of genetic identifiers (genesets) which may be used as diagnostic tools to determine the presence or risk of breast cancer in a patient. The invention also provides genesets which may be used to classify a breast tumour cell as to its molecular subgroup. Each of the identified genesets may be used to product customised specific nucleic acid microarrays for use in diagnosis and classification of breast tumour cells.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 4, 2005
    Inventors: Patrick Tan, Yu Kun, Amit Aggarwal, Chia Ooi
  • Publication number: 20040255259
    Abstract: A design, device, system and process for placing slots in active regions (e.g., metal areas). Embodiments of the present invention improve the planarization of metal areas (e.g., lines) and insulators by reducing depressions (e.g., dishing) in the metal areas by including symmetric or square slots inside selected wide metal lines, by adhering to a set of placement rules. Embodiments reduce dishing in copper dual damascene structures. Embodiments reduce data processing requirements for designing and arranging the layout of IC devices and the slots.
    Type: Application
    Filed: June 11, 2003
    Publication date: December 16, 2004
    Inventors: Patrick Tan, Kheng Chok Tee, David Vigar, Tat Wei Chua
  • Publication number: 20030113761
    Abstract: A method of investigating a biochemical pathway, especially a biochemical pathway treated with a test substance which is being considered as a potential drug, in order to predict its effects, comprises the steps of:
    Type: Application
    Filed: August 16, 2002
    Publication date: June 19, 2003
    Inventors: Patrick Tan, Kumar Selvarajoo
  • Publication number: 20030080086
    Abstract: A method of forming fiber arrays includes using a base substrate to form an alignment pattern, holding a fiber fixed with reference to the pattern, and, while the fiber is held fixed, bonding a cap to the fiber, the cap being of a material having a different coefficient of thermal expansion than the base substrate. The base substrate can be an etched silicon chip and the cap can be of a fused silicon material. The method provides one and two dimensional arrays of fibers, the fiber aligning structures of the arrays having coefficients of thermal expansion selected to match those of connecting components. A fiber array made by the method includes a pair of substrates, a fiber sandwiched between the substrates, and a molded material holding the fiber in a predetermined alignment with respect to a pattern preformed in the molded material.
    Type: Application
    Filed: August 16, 2002
    Publication date: May 1, 2003
    Inventors: David Volfson, Geoffrey Kaiser, Patrick Tan, John S. Berg
  • Publication number: 20020054729
    Abstract: An actuator for controlling a pitch angle and a yaw angle of a mirror in a fiber-optic switch includes a piezoelectric strip having a first and second arm. The first arm extends from a substrate in a first direction. The second arm, which is for attachment to the mirror, extends from the first arm in a second direction different from the first direction. A pitch-electrode, in electrical communication with the first arm, controls pitch angle by causing deflection of the first arm. A yaw-electrode, in electrical communication with the second arm, controls the yaw angle by deflecting the second arm.
    Type: Application
    Filed: February 23, 2001
    Publication date: May 9, 2002
    Inventors: John S. Berg, Mark Steinback, Patrick Tan, David Kindler, Raymond Pavlak, John Ritter, Hae-Kwon Chung, David Kent, Phillip H. Malyak
  • Patent number: 4648783
    Abstract: A robotic cell, or work area, especially useful for education. The cell has a plurality of interchangable work surfaces for mounting objects that the robot manipulates. Students, researchers, or other workers can thus set up separate experiments that need not be torn down each time a different user begins work with the cell. The cell has safety switches that encourage a user, when near the robot, to keep a hand on the robot so as not to be accidentally injured by the robot's motion. There is also a dead man switch effective to disenable the robot entirely, after a short time delay. The cell has a pneumatic control circuit that enables a user to position the robot's gripper arm at positions intermediate of fully up and fully down.
    Type: Grant
    Filed: November 6, 1984
    Date of Patent: March 10, 1987
    Inventors: Patrick Tan, Peter Maitland, Gregory Kawczynski, Paul V. Camposeo