Patents by Inventor Alan Olstein

Alan Olstein 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).

  • Selective Growth Medium for Listeria Spp
    Publication number: 20080020445
    Abstract: Disclosed is a growth medium containing nitrofurantoin. The growth medium is selective for the growth of Listeria spp.
    Type: Application
    Filed: February 12, 2005
    Publication date: January 24, 2008
    Inventor: Alan Olstein
  • Method and Kit for Detecting Listeria Spp.
    Publication number: 20070254320
    Abstract: The subject invention is directed to a method and a kit for detecting Listeria spp. in food samples, biological sample (e.g., blood, saliva, tissue samples, cells samples, etc.), and any other sample suspected of containing Listeria.
    Type: Application
    Filed: October 20, 2004
    Publication date: November 1, 2007
    Inventor: Alan Olstein
  • Antibiotic-metal complexes in the detection of gram-positive bacteria and other biological analytes
    Publication number: 20050026813
    Abstract: Complexes of antibiotics and metals are provided that are useful in detecting microorganisms, including gram-positive bacteria, Mycobacteria, permeabilized gram-negative bacteria, protozoans and other biological analytes, and are particularly useful in detecting gram-positive bacteria. The complexes are preferably chelated complexes wherein the antibiotic is a glycopeptide antibiotic, quinolone antibiotic, ribonucleoside antibiotic, mixtures thereof, and analogs and derivatives thereof, and (b) a detectable label comprising a transition or lanthanide metal. The complexes provide for chemiluminescent, fluorescent or magnetic detection of the analyte. Methods of synthesizing and using the complexes are also provided.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 3, 2005
    Inventors: Alan Olstein, Joellen Feirtag
  • Cross-linked gas permeable membrane of a cured perfluorinated urethane polymer, and optical gas sensors fabricated therewith
    Patent number: 5631340
    Abstract: An optical sensor is provided for measuring dissolved gases such as O.sub.2 or CO.sub.2 in a fluid sample. The sensor is formulated so as to contain a gas permeable membrane of a cured perfluorinated urethane polymer and, incorporated therein, a gas-sensitive indicator component. Methods for making and using the membrane and sensor are provided as well.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: May 20, 1997
    Assignee: Optical Sensors Incorporated
    Inventor: Alan Olstein
  • Optical sensor for the measurement of pH in a fluid, and related sensing compositions and methods
    Patent number: 5607644
    Abstract: An optical sensor is provided for measuring the pH of a fluid sample. The sensor is formulated using a fluorescent polymer composition comprising a copolymer of a water-dispersable, polyether-containing urethane olefin precursor and a fluorescent monomer species, wherein the ratio of precursor and fluorescent monomer species is such that a predetermined apparent pKa is provided. The sensor is prepared by coating the distal end of an optical waveguide with the fluorescent polymer composition, and curing the copolymer contained in the composition, e.g., by exposure to radiation of a suitable wavelength.
    Type: Grant
    Filed: June 10, 1993
    Date of Patent: March 4, 1997
    Assignee: Optical Sensors Incorporated
    Inventors: Alan Olstein, William Fowler, Jo Pritchard
  • Fluorescent polymers useful in conjunction with optical PH sensors
    Patent number: 5536783
    Abstract: An optical sensor is provided for measuring the pH of a fluid sample. The sensor is formulated using a fluorescent polymer composition comprising a copolymer of a water-dispersable, polyether-containing urethane olefin precursor and a fluorescent monomer species, wherein the ratio of precursor and fluorescent monomer species is such that a predetermined apparent pKa is provided. The sensor is prepared by coating the distal end of an optical waveguide with the fluorescent polymer composition, and curing the copolymer contained in the composition, e.g., by exposure to radiation of a suitable wavelength.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: July 16, 1996
    Assignee: Optical Sensors Incorporated
    Inventors: Alan Olstein, William Fowler, Jo Pritchard
  • Cross-linked gas permeable membrane of a cured perfluorinated urethane polymer, and optical gas sensors fabricated therewith
    Patent number: 5453248
    Abstract: An optical sensor is provided for measuring dissolved gases such as O.sub.2 or CO.sub.2 in a fluid sample. The sensor is formulated so as to contain a gas permeable membrane of a cured perfluorinated urethane polymer and, incorporated therein, a gas-sensitive indicator component. Methods for making and using the membrane and sensor are provided as well.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: September 26, 1995
    Assignee: Optical Sensors Incorporated
    Inventor: Alan Olstein