Patents by Inventor Carrington S. Cobbs

Carrington S. Cobbs 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).

  • Method of reducing background in biotin-based assays
    Patent number: 6096508
    Abstract: This invention relates to an improvement in a method for detecting labeled molecules and especially biotinylated molecules and particularly relates to a method for reducing background signal problems in such detection methods.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: August 1, 2000
    Assignee: Kirkegaard & Perry Laboratoies, Inc.
    Inventors: Michael S. Lemar, Katherine MacLean Peterson, Carrington S. Cobbs
  • Formazan-based immunoassay
    Patent number: 5916746
    Abstract: This invention relates to an improved method for detecting and quantifying the presence of a target molecule, such as an antigen, an antibody or a polynucleotide, in a sample which method uses alkaline phosphatase as the reporter enzyme and the reduction of a tetrazolium salt to a formazan as part of the detection/signaling system.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: June 29, 1999
    Assignee: Kirkegaard & Perry Laboratories, Inc.
    Inventors: Carrington S. Cobbs, Thomas M. Woerner
  • Process for stereoselectively hydrolyzing, transesterifying or esterifying with immobilized isozyme of lipase from Candida rugosa
    Patent number: 5108916
    Abstract: An immobilized isozyme of Lipase MY or AY from Candida rugosa is used for stereoselectively hydrolyzing racemic mixtures of esters of 2-substituted acids, other than 2-halo propionic acids, transesterifying esters or acids or esterify acids or alcohols, at high enantiomeric excess, in an organic solvent. Immobilization of the isozyme may be carried out in the presence of an organic acid such as stearic acid. The immobilized isozyme may be used with a fatty acid or fatty acid ester that increases stereoselectivity or rate of hydrolysis of a mixture of racemic esters.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: April 28, 1992
    Assignee: Rhone-Poulenc Rorer, S.A.
    Inventors: Carrington S. Cobbs, Michael J. Barton, Lin Peng, Animesh Goswami, Adrien P. Malick, John P. Hamman, Gary J. Calton