Patents Represented by Attorney Kevin Stein, Esq.
  • Patent number: 7668661
    Abstract: The invention provides diagnostic methods, kits, and systems, and related computer-readable media, which use multiple blood marker values, including serum and plasma marker values, to aid in the diagnosis of the status or progress of a liver disease in a patient. The invention also provides methods and systems, and related computer-readable media, that use blood marker values, including serum and plasma marker values: (1) to screen for active ingredients useful in the treatment of a liver disease; (2) to aid in the selection of treatment regimens for patients that are predisposed to, or suffer from, liver disease; and (3) to aid in the design of clinical programs useful in monitoring the status or progress of liver disease in one or more patients.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: February 23, 2010
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Michael Volker, Michael Becka, Werner Kroll, Andreas Knorr, Sylvia Unger, Mathias Gehrmann, Guido Hennig, Elmar-Reinhold Burchardt, Michael J. Arthur, Alastair D. Burt, Massimo Pinzani, Detlef Schuppan, Robert P. Thiel, Christoph Petry, William Rosenberg
  • Patent number: 7611909
    Abstract: A method for the detection or quantitation of unlabeled target analyte in a biological sample, the method comprising labeling a target analyte for a biological sample suspected of containing unlabeled target analyte with an acridinium compound to form a labeled target analyte and providing the labeled target analyte to the biological sample, or providing the labeled target analyte to the biological sample, wherein the acridinium compound comprises an acridinium nucleus having an electron-donating substituent directly attached to the acridinium nucleus, with the electron-donating substituent attached at the C2 position. Chemiluminescent acridinium compounds useful in the method have emission maxima close to or in the near infrared (NIR) region (>590 nm).
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: November 3, 2009
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, Qingping Jiang, David Sharpe, Say-Jong Law
  • Patent number: 7459284
    Abstract: A chemiluminescent substrate of a hydrolytic enzyme having the following general Formula I is disclosed, as follows: Lumi-M-P??Formula I where “Lumi” is a chemiluminescent moiety capable of producing light (a) by itself, (b) with MP attached and (c) with M attached. Examples of Lumi include chemiluminescent acridinium compounds, benzacridinium compounds, quinolinium compounds, isoquinolinium compounds, phenanthridinium compounds, and lucigenin compounds, spiroacridan compounds, luminol compounds and isoluminol compounds. M is a multivalent heteroatom having at least one lone pair of electrons selected from oxygen, nitrogen and sulfur, directly attached to the light emitting moiety of Lumi at one end and to P at the other end. P is a group that can be readily removed by hydrolytic enzymes. An enzymatic reaction utilizing the above compound is the following: where HE is a hydrolytic enzyme. Lumi-M is a chemiluminescent product having physical and/or chemical properties different from those of Lumi-M-P.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: December 2, 2008
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Qingping Jiang, Anand Natrajan, David Sharpe, Wen-Jee Wong, Say-Jong Law