Patents by Inventor David Chou

David Chou 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: 20070072850
    Abstract: The invention relates to 5-substituted alkylaminopyrazole derivatives of the formula: or salts thereof, wherein the various symbols are as defined in the description, to processes for their preparation, to compositions thereof, and to their use for the control of pests (including arthropods and helminths).
    Type: Application
    Filed: August 21, 2004
    Publication date: March 29, 2007
    Applicant: Bayer CropScience S.A.
    Inventors: David Chou, Werner Knauf, Uwe Doller, Karl Seeger
  • Publication number: 20070066596
    Abstract: The imvention relates to 5-sub-stituted-oxyalkylaminopyrazole derivatives of formula (I) or salts thereof wherein the various symbols are as defined in the description, to processes for their preparation, to compositions thereof, and to their use for the control of pests (including arthropods and helminths).
    Type: Application
    Filed: August 21, 2004
    Publication date: March 22, 2007
    Applicant: BAYER CROPSCIENCE S.A.
    Inventors: David Chou, Stefan Schnatterer, Werner Knauf, Karl Seeger
  • Publication number: 20060247242
    Abstract: 5-Substituted-sulfonylaminopyrazole derivatives of formula (I): or salts thereof, wherein the various symbols are as defined in the description, and pesticidal compositions thereof, processes for their preparation, and methods for their use for the control of arthropods (including insects and arachnids) and helminths (including nematodes).
    Type: Application
    Filed: November 12, 2003
    Publication date: November 2, 2006
    Inventors: Uwe Döller, David Chou, Merwyn Steinsberger, Michael Maier, Anke Kuhlmann, Karl Seeger, David Hawkins, Stanley Gough, David Manning
  • Publication number: 20060020013
    Abstract: A method of controlling parasites in or on an animal comprising administering to the animal a parasiticidally effective, substantially non-emetic 1-arylpyrazole.
    Type: Application
    Filed: September 27, 2005
    Publication date: January 26, 2006
    Applicant: Aventis CropScience S.A.
    Inventors: Scot Huber, David Chou, Stefan Schnatterer, Henricus Bastiaans
  • Publication number: 20060007998
    Abstract: The invention provides a DMT or OFDM equalization system that deals with each tone not only separately, but also globally, which provides better overall performance. In the inventive system, only M+T variables are required to be determined, where M is the number of tones and T represents the number of SIRF taps. The invention defines a matrix R, in which optimal coefficients are found as the eigenvector corresponding to the smallest eigenvalue of the matrix R. The dynamic range of all variables is limited in a system in accordance with the present invention, which provides ease of hardware implementation. Furthermore, the inventive system retains the advantages of per-tone equalization by providing a smoother signal-to-noise ratio (SNR) distribution function versus synchronization delay. In addition, no effort is wasted on the equalization of unused tones, because it is unnecessary to determine the coefficients for unused tones.
    Type: Application
    Filed: July 12, 2004
    Publication date: January 12, 2006
    Inventors: Fa-Long Luo, David Chou
  • Publication number: 20050182048
    Abstract: The invention relates to the use for the control of parasites in animals, of a compound which is a 5-substituted-alkylaminopyrazole derivative of formula (I) or a salt thereof: wherein the various symbols are as defined in the description, to novel 5-substituted-alkylaminopyrazole derivatives and pesticidal compositions thereof, and to processes for their preparation.
    Type: Application
    Filed: February 27, 2003
    Publication date: August 18, 2005
    Applicant: Bayer Coro Science S.A.
    Inventors: David Chou, Henricus Maria Bastiaans, Anke Kuhlmann, Maria-Theresia Thonessen, Stefan Schnatterer, Uwe Doller, Jamin Huang, Karl Seeger, Andrew Scribner, Adalberto Perez De Leon
  • Publication number: 20050171164
    Abstract: The invention relates to the use for the control of pests, of a compound which is a 5-substituted-alkylaminopyrazole derivative of formula (I) or a salt thereof: wherein the various symbols are as defined in the description, to novel 5-substituted-alkylaminopyrazole derivatives and pesticidal compositions thereof, and to processes for their preparation.
    Type: Application
    Filed: February 27, 2003
    Publication date: August 4, 2005
    Inventors: David Chou, Henricus Maria Bastiaans, Anke Kuhlmann, Maria-Theresia Thonessen, Stefan Schnatterer, Uwe Doller, Jamin Huang, Karl Seeger, Andrew Scribner, Adalberto Perez De Leon
  • Publication number: 20050128945
    Abstract: According to some embodiments, a packet associated with a blocked port is prevented from being placed in a transmit buffer.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 16, 2005
    Inventors: Chen-Chi Kuo, David Chou, Lawrence Huston, Sridhar Lakshmanamurthy, Uday Naik
  • Publication number: 20050132078
    Abstract: According to some embodiments, a processing element arranges for a packet to be transmitted through a port without storing a packet identifier in a local transmit queue if a number of transmit buffers to be associated with the packet does not exceed a pre-determined threshold.
    Type: Application
    Filed: December 12, 2003
    Publication date: June 16, 2005
    Inventors: Alok Kumar, Prashant Chandra, Uday Naik, Ameya Varde, David Chou
  • Publication number: 20050048099
    Abstract: The invention provides biodegradable implants sized for implantation in an ocular region and methods for treating medical conditions of the eye. The implants are formed from a mixture of hydrophilic end and hydrophobic end PLGA, and deliver active agents into an ocular region without a high burst release.
    Type: Application
    Filed: August 13, 2004
    Publication date: March 3, 2005
    Applicant: ALLERGAN, INC.
    Inventors: Jane-Guo Shiah, Rahul Bhagat, Thierry Nivaggioli, Lin Peng, David Chou, David Weber
  • Patent number: 6852223
    Abstract: The present invention relates to an asymmetric porous polytetrafluoroethylene membrane comprising a dense skin layer and a continuously foamed porous layer, (1) the dense skin layer having a surface roughness Ra of 20 to 165 nm; (2) the dense skin layer having a contact angle for water of 120 to 135°; (3) the porous layer having a maximum pore diameter of 0.03 to 1.0 ?m; and (4) the membrane having a total porosity of 20 to 70%. The asymmetric porous PTFE membrane has an ability to separate each liquid component from a liquid-liquid homogeneous mixture in addition to known properties such as water permeability resistance, gas permeability, sealing property and electric property, wherein change of these properties over time is small.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: February 8, 2005
    Assignee: Yeu Ming Tai Chemical Industrial Co., Ltd.
    Inventors: James Huang, William Chou, David Chou, Juin-Yih Lai, Kueir-Rarn Lee, Da-Ming Wang, Ruoh-Chyu Ruaan, Tian-Tsair Wu
  • Publication number: 20040195173
    Abstract: The present invention provides an asymmetric porous PTFE membrane for a filter having little change over time and conventionally known properties of a porous PTFE molded article such as water permeability resistance, air permeability, sealing properties and electric properties, in which collection efficiency, air permeability and pressure loss are improved.
    Type: Application
    Filed: March 24, 2004
    Publication date: October 7, 2004
    Applicant: YEU MING TAI CHEMICAL INDUSTRIAL CO., LTD.
    Inventors: James Huang, William Chou, David Chou, Juin-Yih Lai, Kueir-Rarn Lee, Da-Ming Wang, Ruoh-Chyu Ruaan, Tian-Tsair Wu
  • Publication number: 20040198121
    Abstract: The present invention provides an asymmetric porous PTFE membrane for clothing having little change over time and conventionally known properties of a porous PTFE molded article such as water permeability resistance, air permeability, sealing properties and electric properties, in which durability and water vapor permeability are improved by strengthening adhesion strength with fabric.
    Type: Application
    Filed: March 25, 2004
    Publication date: October 7, 2004
    Applicant: YEU MING TAI CHEMICAL INDUSTRIAL CO., LTD.
    Inventors: James Huang, William Chou, David Chou, Juin-Yih Lai, Kueir-Rarn Lee, Da-Ming Wang, Ruoh-Chyu Ruaan, Tian-Tsair Wu
  • Publication number: 20040137059
    Abstract: The invention provides biodegradable implants sized for implantation in an ocular region and methods for treating medical conditions of the eye. The implants are formed from a mixture of hydrophilic end and hydrophobic end PLGA, and deliver active agents into an ocular region without a high burst release.
    Type: Application
    Filed: January 9, 2003
    Publication date: July 15, 2004
    Inventors: Thierry Nivaggioli, Lin Peng, David Chou, David Weber
  • Patent number: 6702971
    Abstract: To provide a method of producing a uniaxially stretched polytetrafluoroethylene gasket tape, which comprises: (1) a step for preparing a paste comprising a mixture of a polytetrafluoroethylene powder obtained by emulsion polymerization and an extrusion aid, (2) a step for extruding the paste by means of an extruder equipped with a die which has plural separators inside an orifice thereof having a rectangular cross section, (3) a step for rolling, in the extruding direction, an extrudate having slit lines to give a rolled polytetrafluoroethylene sheet, (4) a step for uniaxially stretching the rolled sheet in the rolling direction after removing the extrusion aid from the rolled sheet, and (5) a step for heat-treating the obtained uniaxially stretched polytetrafluoroethylene sheet. The die of the extruder has plural sheet-like separators in the orifice thereof having a rectangular cross section.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: March 9, 2004
    Assignee: Yeu Ming Tai Chemical Industrial Co., Ltd.
    Inventors: James Huang, William Chou, David Chou, Shia-Chung Chen, Woh-Jer Lee, Lei-Ti Huang, Ching-Yao Huang
  • Publication number: 20030089660
    Abstract: The present invention relates to an asymmetric porous polytetrafluoroethylene membrane comprising a dense skin layer and a continuously foamed porous layer, (1) the dense skin layer having a surface roughness Ra of 20 to 165 nm; (2) the dense skin layer having a contact angle for water of 120 to 135°; (3) the porous layer having a maximum pore diameter of 0.03 to 1.0 &mgr;m; and (4) the membrane having a total porosity of 20 to 70%. The asymmetric porous PTFE membrane has an ability to separate each liquid component from a liquid-liquid homogeneous mixture in addition to known properties such as water permeability resistance, gas permeability, sealing property and electric property, wherein change of these properties over time is small.
    Type: Application
    Filed: October 28, 2002
    Publication date: May 15, 2003
    Applicant: Yeu Ming Tai Chemical Industrial Co., Ltd.
    Inventors: James Huang, William Chou, David Chou, Juin-Yih Lai, Kueir-Rarn Lee, Da-Ming Wang, Ruoh-Chyu Ruaan, Tian-Tsair Wu
  • Publication number: 20030015821
    Abstract: To provide a method of producing a uniaxially stretched polytetrafluoroethylene gasket tape, which comprises: (1) a step for preparing a paste comprising a mixture of a polytetrafluoroethylene powder obtained by emulsion polymerization and an extrusion aid, (2) a step for extruding the paste by means of an extruder equipped with a die which has plural separators inside an orifice thereof having a rectangular cross section, (3) a step for rolling, in the extruding direction, an extrudate having slit lines to give a rolled polytetrafluoroethylene sheet, (4) a step for uniaxially stretching the rolled sheet in the rolling direction after removing the extrusion aid from the rolled sheet, and (5) a step for heat-treating the obtained uniaxially stretched polytetrafluoroethylene sheet. The die of the extruder has plural sheet-like separators in the orifice thereof having a rectangular cross section.
    Type: Application
    Filed: November 2, 2001
    Publication date: January 23, 2003
    Applicant: YEU MING TAI CHEMICAL INDUSTRIAL CO., LTD.
    Inventors: James Huang, William Chou, David Chou, Shia-Chung Chen, Woh-Jer Lee, Lei-Ti Huang, Ching-Yao Huang
  • Publication number: 20030004984
    Abstract: The invention relates to methods for transcoding a webpage and creating a personal profile. The method for transcoding a webpage comprises the steps of: (i) retrieving a specific webpage; (ii) analyzing the specific webpage; (iii) dividing the specific webpage into at least two groups; (iv) transcoding the at least two groups from a first language into a second language according to a predetermined parameter; and (v) outputting the transcoded groups to a mobile device. The method for creating a personal profile comprises the steps of: inputting a Chinese or English URL address through a computer or a mobile device; (ii) retrieving a corresponding webpage through a reformatter and disabling the double clicking function; (iii) selecting contents in the webpage to be displayed; and (iv) assigning a name to the selected contents and storing the selected contents and the name.
    Type: Application
    Filed: January 2, 2002
    Publication date: January 2, 2003
    Applicant: ISCREEN CORPORATION
    Inventor: David Chou
  • Patent number: 6080472
    Abstract: To provide a porous polytetrafluoroethylene sheet which has excellent cold flow resistance and is used suitably for gaskets and a highly densified polytetrafluoroethylene sheet which has high tensile strength and flex life and is used suitably for diaphragms. The porous polytetrafluoroethylene sheet is produced from a polytetrafluoroethylene material having a microstructure of nodes interconnected by fibrils and has MTS of from 3,000 to 12,000 psi and C.I. of 0.02 to 0.20 g/cc/psi. The highly densified polytetrafluoroethylene sheet is produced by compression-molding the porous polytetrafluoroethylene sheet and then sintering completely. The porous polytetrafluoroethylene sheet is also laminated with a sheet of other material to provide a composite polytetrafluoroethylene molded article.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: June 27, 2000
    Assignee: Yeu Ming Tai Chemical Ind. Co., Ltd.
    Inventors: James Huang, William Chou, David Chou, Jenn-Yuh Kau, Yui-Whei Cheng-Yang, Woh-Jer Lee
  • Patent number: 5098625
    Abstract: A process for preparing an improved expanded porous polytetrafluorethylene product having a higher density and improved cold flow properties and prepared from a paste formed from a polytetrafluoroethylene resin and a lubricant. The method includes extruding the paste through an extrusion die at a reduction ratio of less than 100, calendering the extrudate, removing the lubricant, and heating the extrudate to a temperature greater than the crystalline melting point of polytetrafluoroethylene but generally below the temperature at which thermal decomposition becomes appreciable while concurrently expanding the extrudate to at least twice its original length.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: March 24, 1992
    Assignee: Yeu Ming Tai Chemical Industrial Co., Ltd.
    Inventors: James Huang, William Chou, David Chou