Patents by Inventor Pui Ho

Pui Ho 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: 20080007276
    Abstract: A position sensor comprises a first part having several electrically conductive elements, a second part having an electrical conductor, and holding means holding the first part and the second part together with the conductive elements and the conductor being spaced apart and permitting relative movement between the conductive elements and the conductor. Included is a signal generator for generating and supplying different electrical signals to one of the first part and the second part for reception in a contactless manner by the other of the first part and the second part with a magnitude that is dependent upon the relative position between the conductive elements and the conductor. There is also a signal detector connected to the other of the first part and the second part for differentiating the electrical signals received thereby to determine the relative position between the conductive elements and the conductor.
    Type: Application
    Filed: July 5, 2006
    Publication date: January 10, 2008
    Applicant: Mosway Semiconductor Limited
    Inventors: Celement Chiu Sing Tse, Chi Keung Tang, Kenny Chi Ken Lee, Peter On Bon Chan, Chun Ching Lee, Chi Pui Ho
  • Publication number: 20070208370
    Abstract: A vascular filter for capturing and breaking apart particles in the blood. The vascular filter includes a filter body and an agitation member disposed within the filter body. Movement of the agitation member acts on particles trapped within the filter body for enhancing the dissolution of the particles, thereby reducing the likelihood of filter occlusion and improving the flow of blood through the vessel. The vascular filter is preferably collapsible for percutaneous delivery to a treatment site. The agitation member is preferably rotatably coupled to the filter body and a flow receiving member is provided for causing the agitation member to rotate. A clutch mechanism may be provided such that the agitation member only rotates when a particle, such as a blood clot, is trapped within the filter body.
    Type: Application
    Filed: March 25, 2005
    Publication date: September 6, 2007
    Inventors: David Hauser, Pui Ho
  • Publication number: 20070015808
    Abstract: A pharmaceutical formulation suitable for multi-dose administration comprising endo-N-(9-methyl-9-azabicyclo[3.3.1]non-3-yl)-1-methyl-1H-indazole-3-carboxanide hydrochloride, a preservative selected from the group consisting of alkyl paraben and phenol, and a buffer selected from the group consisting of acetate and phosphate buffers is disclosed.
    Type: Application
    Filed: January 5, 2006
    Publication date: January 18, 2007
    Inventors: Kiran Singh, Pui-Ho Yuen
  • Patent number: 7122201
    Abstract: Compositions and methods are provided for reducing adverse reactions as a result of parenteral administration of certain phenothiazine derivatives such as promethazine, including promethazine hydrochloride. The active compound may be admixed with an effective amount of one or more non-ionic surfactants and at least one amino acid and/or one polyol prior to administration to an animal such as a mammal.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: October 17, 2006
    Assignee: Baxter International Inc.
    Inventors: Jianwei Yu, Pui-Ho Yuen, Virginia Paulate
  • Publication number: 20060092585
    Abstract: An electrical power supply system firstly includes a power cable electrically connected to a power source. The power cable has a power line and a first conductor; the first conductor is isolated from the power line and acts as a sensing line. The power cable also has a second conductor and the second conductor is isolated from the sensing line and acts as a neutral line; the power line, the sensing line and the neutral line are electrically connected to the power source. The system further includes an arc fault circuit interrupter including a sensing circuit in electrical connection with the sensing line for detecting an arc fault and a voltage source being in electrical connection with the sensing line. The voltage of the voltage source is designed to be below the hazardous voltage according to the electrical safety rules.
    Type: Application
    Filed: November 4, 2004
    Publication date: May 4, 2006
    Inventors: Peter Chan, Franky Leung, Malcolm Yung, Chi-Pui Ho
  • Patent number: 7023519
    Abstract: The invention relates to an ITO heater for a liquid crystal display, typically a DSTN display which comprises an active liquid crystal cell for optical modulation, characterized by a dummy cell adapted for optical compensation comprising two substrates with liquid crystal therebetween, by a heater, the heater comprising a transparent conductive layer applied to one of the substrates, and by the dummy cell further comprising electrically conductive spacing means for simultaneously maintaining a desired cell gap and equalizing the electrical potential between the two substrates.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: April 4, 2006
    Assignees: Varintelligent (BVI) Limited
    Inventors: Kay Pui Ho, Richard C. H. Lee, Ying Leung Law, Ching Chuen Leung
  • Publication number: 20060018930
    Abstract: A composition is disclosed comprising virus in a formulation comprising a polyhydroxy hydrocarbon buffered to maintain a pH in a range from about 7 to about 8.5 at a temperature in the range from about 2° C. to 27° C. Methods for concentrating and purifying virus preparations are also disclosed.
    Type: Application
    Filed: February 7, 2005
    Publication date: January 26, 2006
    Applicant: Schering Corporation
    Inventors: Andreas Frei, Henry Kwan, Varda Sandweiss, Gary Vellekamp, Pui-Ho Yuen, Laureano Bondoc, Frederick Porter, John Tang, Peter Ihnat
  • Publication number: 20050260168
    Abstract: A composition is disclosed comprising virus in a formulation comprising a polyhydroxy hydrocarbon buffered to maintain a pH in a range from about 7 to about 8.5 at a temperature in the range from about 2° C. to 27° C. Methods for concentrating and purifying virus preparations are also disclosed.
    Type: Application
    Filed: April 27, 2005
    Publication date: November 24, 2005
    Applicant: Schering Corporation
    Inventors: Andreas Frei, Henry Kwan, Varda Sandweiss, Gary Vellekamp, Pui-Ho Yuen, Laureano Bondoc, Frederick Porter, John Tang, Peter Ihnat
  • Publication number: 20030157066
    Abstract: A composition is disclosed comprising virus in a formulation comprising a polyhydroxy hydrocarbon buffered to maintain a pH in a range from about 7 to about 8.5 at a temperature in the range from about 2° C. to 27° C. Methods for concentrating and purifying virus preparations are also disclosed.
    Type: Application
    Filed: April 4, 2003
    Publication date: August 21, 2003
    Inventors: Andreas Frei, Henry K.H. Kwan, Varda E. Sandweiss, Gary J. Vellekamp, Pui-Ho Yuen, Laureano L. Bondoc, Frederick William Porter, John Chu-Tay Tang, Peter Ihnat
  • Patent number: 6544769
    Abstract: A composition is disclosed comprising virus in a formulation comprising a polyhydroxy hydrocarbon buffered to maintain a pH in a range from about 7 to about 8.5 at a temperature in the range from about 2° C. to 27° C. Methods for concentrating and purifying virus preparations are also disclosed.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: April 8, 2003
    Assignee: Schering Corporation
    Inventors: Andreas Frei, Henry K. H. Kwan, Varda E. Sandweiss, Gary J. Vellekamp, Pui-Ho Yuen, Peter Ihnat
  • Publication number: 20030032639
    Abstract: Compositions and methods are provided for reducing adverse reactions as a result of parenteral administration of certain phenothiazine derivatives such as promethazine, including promethazine hydrochloride. The active compound may be admixed with an effective amount of one or more non-ionic surfactants and at least one amino acid and/or one polyol prior to administration to an animal such as a mammal.
    Type: Application
    Filed: June 26, 2002
    Publication date: February 13, 2003
    Applicant: Wyeth
    Inventors: Jianwei Yu, Pui-Ho Yuen, Virginia Paulate
  • Patent number: 6180781
    Abstract: The invention relates to the novel compound mometasone furoate monohydrate, process for its preparation and pharmaceutical compositions containing said compound.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: January 30, 2001
    Assignee: Schering Corporation
    Inventors: Pui-Ho Yuen, Charles Eckhart, Teresa Etlinger, Nancy Levine
  • Patent number: 6177477
    Abstract: Sterile pharmaceutical compositions parenteral administration containing propofol in an oil-in-water emulsion additionally containing an amount of the preservative tromethamine sufficient to prevent signficant growth of microorganisms for at least 24 hours after extrinsic contamination.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: January 23, 2001
    Assignee: American Home Products Corporation
    Inventors: Mary Mathew George, Pui-Ho Yuen, Martin A. Joyce
  • Patent number: 6127353
    Abstract: The invention relates to the novel compound mometasone furoate monohydrate, process for its preparation and pharmaceutical compositions containing said compound.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: October 3, 2000
    Assignee: Schering Corporation
    Inventors: Pui-Ho Yuen, Charles Eckhart, Teresa Etlinger, Nancy Levine
  • Patent number: 5935566
    Abstract: Stable aqueous solution formulations containing alfa-interferon type interferon, e.g., interferon alfa-2a and interferon alfa-2b, a buffer to maintain the pH in the range of 4.5-7.1, polysorbate 80 as a stabilizer, edetate disodium as a chelating agent, sodium chloride as a tonicity agent, and m-cresol as an antimicrobial preservative and which maintain high chemical, physical and biological stability of the alfa-type interferon for an extended storage period of at least 24 months are disclosed.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: August 10, 1999
    Assignee: Schering Corporation
    Inventors: Pui-Ho C. Yuen, Douglas F. Kline
  • Patent number: 5923393
    Abstract: A method of making a combined printed circuit board having a hollow portion or a through hole and an integrated circuit driver, wherein an external surface of the board and the driver is substantially planar. The method comprises steps of mounting the driver in the hollow portion, providing means temporarily for holding the driver in the hollow portion, encapsulating resin the driver with resin, and then removing the temporarily holding means.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: July 13, 1999
    Assignees: Varintelligent (BVI) Limited, Terrence Leslie Johnson
    Inventors: C. C. Chang, Kay Pui Ho
  • Patent number: 5766582
    Abstract: Process for making stable aqueous solution formulations containing alfa-type interferon, e.g., interferon alfa-2a and interferon alfa-2b, a buffer to maintain the pH in the range of 4.5-7.1, polysorbate 80 as a stabilizer, edetate disodium as a chelating agent, sodium chloride as a tonicity agent, and m-cresol as an antimicrobial preservative and which maintain high chemical, physical and biological stability of the alfa interferon for an extended storage period of at least 24 months are disclosed.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: June 16, 1998
    Assignee: Schering Corporation
    Inventors: Pui-Ho C. Yuen, Douglas F. Kline
  • Patent number: 4988722
    Abstract: A process for preparing aqueous parenteral compositions of drugs which are weak bases and are only slightly soluble in water is disclosed. Aqueous parenteral compositions of the antifungal agent (.+-.) (2R*, 3R*)-2-(2,4-difluorophenyl)-3-methylsulfonyl-1-(1,2,4-triazol-1-yl)butan-2 -ol are also disclosed.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: January 29, 1991
    Assignee: Schering Corporation
    Inventor: Pui-Ho Yuen
  • Patent number: 4579960
    Abstract: Buffered aqueous solution of thimerosal wherein the buffer is citric acid and sodium citrate having a pH between 3.5 and 7.
    Type: Grant
    Filed: May 7, 1984
    Date of Patent: April 1, 1986
    Assignee: Schering Corporation
    Inventors: Pui-Ho Yuen, Shreeram Agharkar
  • Patent number: 4469228
    Abstract: Disclosed is a kit for preparing a lyophilized alpha interferon gel formulation suitable for topical administration.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: September 4, 1984
    Assignee: Schering Corporation
    Inventors: Michael A. Zupon, Joel A. Sequeira, Alan S. Kirschner, Pui-Ho Yuen