Patents by Inventor Jang Rampal

Jang Rampal 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: 20070037174
    Abstract: A method for detecting a target analyte in a sample having the steps of: binding the target analyte to a solid substrate; binding a reporter to the bound target to form a label enzyme; contacting a chemiluminescent reagent with the label enzyme to produce a fluorescent precipitate; and detecting fluorescence from the fluorescent precipitate.
    Type: Application
    Filed: August 12, 2005
    Publication date: February 15, 2007
    Inventors: Jang Rampal, Robert Matson
  • Publication number: 20050123986
    Abstract: An assay article for detection biopolymers contained in a sample is described. The assay article includes a substrate and a biopolymer directly adsorbed on the surface of the substrate. A plurality of biopolymers may be adsorbed on the surface of the substrate to form an array. Also disclosed is a method of making the assay article. In the preferred method, an aminated polypropylene substrate is used. A biopolymer is contacted with the aminated substrate under a condition sufficient for direct adsorption of the biopolymer on the surface of the substrate. A method of detecting a target biopolymer contained in a sample is also disclosed. In this method, a substrate is contacted with either a probe or target biopolymer under a condition sufficient for a direct adsorption of either the probe or target biopolymer on the substrate to form a probe assay article or a target assay article.
    Type: Application
    Filed: January 20, 2005
    Publication date: June 9, 2005
    Inventors: Jang Rampal, Robert Matson
  • Patent number: 5583211
    Abstract: Disclosed herein are surface activated, organic polymers useful for biopolymer synthesis. Most preferably, aminated polypropylene is used for the synthesis of oligonucleotides thereto, and these devices are most preferably utilized for genetic analysis of patient samples.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: December 10, 1996
    Assignee: Beckman Instruments, Inc.
    Inventors: Peter J. Coassin, Robert Matson, Jang Rampal
  • Patent number: 5319079
    Abstract: Method for substituting a substitution compound for the hydrogen of a support bound primary hydroxyl group. The support bound primary hydroxyl group is treated in an organic, substantially anhydrous solvent in the presence of a tertiary amine base and the substitution compound.The substitution compound has a positive moiety and a negative moiety. The positive moiety is selected from the group consisting of trityl, pixyl, and derivatives thereof.The reagent is selected from the group consisting of tetraalkylammonium salts, inorganic salts, and mixtures thereof. Each reagent has a cation and an anion moiety.The cation moiety of the reagent is more electropositive than the positive moiety of the substitution compound. This relationship enables the reagent to attract the negative moiety of the substitution compound.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: June 7, 1994
    Assignee: Beckman Instruments, Inc.
    Inventors: Paramesewara M. Reddy, Serge L. Beaucage, Jang Rampal