Patents Represented by Attorney, Agent or Law Firm David Preston
  • Patent number: 6834955
    Abstract: The present invention recognizes that lenses, such as contact lenses, can be pigmented using ink that include polymers or polymerizable monomers, preferably the same monomers used to make the lens. The ink can be used to make images on or within the lens. Images made using these inks are preferably digital and can be used in a variety of printing methods, including ink-jet printing.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: December 28, 2004
    Inventor: Praful Doshi
  • Patent number: 6806050
    Abstract: This invention provides electromagnetic chips and electromagnetic biochips having arrays of individually addressable micro-electromagnetic units, as well as methods of utilizing these chips for directed manipulation of micro-particles and micro-structures such as biomolecules and chemical reagents. An electromagnetic biochip comprises an individually addressable micro-electromagnetic unit chip with ligand molecules immobilized on its surface. By controlling the electromagnetic field at each unit of the array and combining this control with magnetic modification of biomolecules, these chips can be used for directed manipulation, synthesis and release of biomolecules in order to increase sensitivity of biochemical or chemical analysis and reduce assay time. Other advantages with these chips include minimized damages to biological molecules and increased reproducibility of assay results.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: October 19, 2004
    Assignee: AVIVA Biosciences
    Inventors: Yuxiang Zhou, Litian Liu, Ken Chen, Depu Chen, Jia Wang, Zewen Liu, Zhimin Tan, Junquan Xu, Xiaoshan Zhu, Xuezhong He, Wenzhang Xie, Zhiming Li, Xiumel Liu
  • Patent number: 6716642
    Abstract: The present invention provides electromagnetic chips and electromagnetic biochips having arrays of individually addressable micro-electromagnetic units, as well as methods of utilizing these chips for directed manipulation of micro-particles and micro-structures such as biomolecules and chemical reagents.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: April 6, 2004
    Assignee: Aviva Biosciences Corporation
    Inventors: Lei Wu, Xiaobo Wang, Jing Cheng, Weiping Yang, YuXiang Zhou, LiTian Liu, Junquan Xu
  • Patent number: 6706495
    Abstract: The present invention provides an isolated Staphylococcal GTPase obg gene and a Staphylococcal GTP-binding protein encoded thereby. A recombinant expression vector and an engineered host cell are also provided that include a polynucleotide encoding a Staphylococcal GTP-binding protein. The present invention further relates to a method of producing Staphylococcal GTP-binding protein and a method for high throughput screening to identify potential antimicrobial compounds useful against Staphylococcal bacterial strains.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: March 16, 2004
    Assignee: Anadys Pharmaceuticals
    Inventors: Yueh-tyng Chien, Jason A. Thresher, C. Richard Wobbe, Judith M. Healy
  • Patent number: 6623936
    Abstract: A method for diagnosing clinically distinct embryonal and alveolar subtypes of rhabdomyosarcoma, including contacting a reagent including an antibody that specifically binds myogenin with a sample that includes at least one rhabdomyosarcoma cell or at least one extract of at least one rhabdomyosarcoma cell, detecting the binding of the antibody to the sample to determine the presence, absence, or amount of myogenin in the sample, and diagnosing clinically distinct embryonal and alveolar subtypes of rhabdomyosarcoma, alveolar rhabdomyosarcoma having an increased amount of binding as compared to embryonal rhabdomyosarcoma.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: September 23, 2003
    Assignee: Imgenex
    Inventors: Peter Dias, Sujay Singh
  • Patent number: 6565808
    Abstract: The present invention recognizes that it can be desirable to have a sample receiving chamber integral to or engageable with a test platform, such as a test platform that includes a test strip. The sample receiving chamber is preferably separate or separable from the test platform, but that need not be the case. Preferably, a fluid flow actuating device or structure, such as a valve separates the sample receiving chamber from the test platform. A first aspect of the present invention is a test device that includes a sample receiving chamber and a test platform that preferably includes a test element. A second aspect of the present invention is a method of detecting an analyte in a sample, including: providing a sample, contacting the sample with a test device and detecting the analyte in the sample.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: May 20, 2003
    Assignee: Acon Laboratories
    Inventors: Robert Thomas Hudak, Lorraine Bautista
  • Patent number: 6451582
    Abstract: The present invention relates to a recombinant organism, and a bacterial strain such as Staphylococcus, and S. aureus, in particular. The organism has a regulatable gene for encoding an RNA polymerase specificity factor required for expression of at least one gene essential for growth of the organism. The regulatable gene is one which is responsive to an exogenous effector molecule, and may in particular be an inducer-responsive gene including an operator site, such as a lac operator, to which a repressor, such as a lacl-encoded repressor, is capable of binding. The regulatable gene may in particular be an IPTG responsive plaC allele.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: September 17, 2002
    Assignee: Anadys Pharmaceuticals, Inc
    Inventors: Judith M. Healy, C. Richard Wobbe, Patricia Carroll, Jason Thresher
  • Patent number: 6355491
    Abstract: This invention provides electromagnetic chips and electromagnetic biochips having arrays of individually addressable micro-electromagnetic units, as well as methods of utilizing these chips for directed manipulation of micro-particles and micro-structures such as biomolecules and chemical reagents. An electromagnetic biochip comprises an individually addressable micro-electromagnetic unit chip with ligand molecules immobilized on its surface. By controlling the electromagnetic field at each unit of the array and combining this control with magnetic modification of biomolecules, these chips can be used for directed manipulation, synthesis and release of biomolecules in order to increase sensitivity of biochemical or chemical analysis and reduce assay time. Other advantages with these chips include minimized damages to biological molecules and increased reproducibility of assay results.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: March 12, 2002
    Assignee: Aviva Biosciences
    Inventors: Yuxiang Zhou, Litian Liu, Ken Chen, Depu Chen, Jia Wang, Zewen Liu, Zhimin Tan, Junquan Xu, Xiaoshan Zhu, Xuezhong He, Wenzhang Xie, Zhiming Li, Xiumei Liu
  • Patent number: 6315410
    Abstract: The present invention recognizes that lenses, such as contact lenses, can be pigmented using ink that include polymers or polymerizable monomers, preferably the same monomers used to make the lens. The ink can be used to make images on or within the lens. Images made using these inks are preferably digital and can be used in a variety of printing methods, including ink-jet printing.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: November 13, 2001
    Inventor: Praful Doshi
  • Patent number: D464141
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: October 8, 2002
    Assignee: Acon Laboratories, Inc.
    Inventors: Jim McMenamy, James Feng Lin
  • Patent number: D468437
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: January 7, 2003
    Assignee: Acon Laboratories, Inc.
    Inventors: Jim McMenamy, James Feng Lin