Patents by Inventor John H. Kenten

John H. Kenten 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).

  • Patent number: 6319503
    Abstract: Disclosed are epitope-containing heat shock fusion proteins, DNA constructs encoding such fusion proteins, and methods of use. More specifically, disclosed are ubiquitin fusion proteins comprising ubiquitin fused to a plurality of identical or non-identical epitopes at specified locations.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: November 20, 2001
    Assignee: Proteinix Company
    Inventors: John H. Kenten, Alfonso Tramontano, Aprile L. Pilon, Gerald L. Lohnas, Steven F. Roberts
  • Patent number: 6312896
    Abstract: The present invention provides processes for measuring DNA or RNA binding proteins, specific nucleic acids, as well as enzyme activities using labeled nucleic acids of labeled protein/peptide molecules.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: November 6, 2001
    Assignee: IGEN Inaternational, Inc.
    Inventors: Jeffrey A. Heroux, Maura C. Kibbey, John H. Kenten
  • Patent number: 6306663
    Abstract: The invention relates to novel compounds comprising a ubiquitination recognition element and a protein binding element. The invention also relates to the use of said compounds for modulating the level and/or activity of a target protein. The compounds are useful for the treatment of disease such as infections, inflammatory conditions, cancer and genetic diseases. The compounds are also useful as insecticides and herbicides.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: October 23, 2001
    Assignee: Proteinex, Inc.
    Inventors: John H. Kenten, Steven F. Roberts
  • Patent number: 6218519
    Abstract: The present invention relates to compounds containing an anthracyclinone group such as doxorubicin, daunorubicin or a derivative thereof. The compounds of the invention also contain ester, glycoside or glucuronide structures which are hydrolyzed by the corresponding esterase, glycosidase or glucuronidase. These compounds possess potent cytotoxic activity which is developed after the hydrolysis of the ester or glycoside group of the compound and are effective in the inhibition of tumor cells and bacterial growth after activation.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: April 17, 2001
    Assignee: Pro-Neuron, Inc.
    Inventors: John H. Kenten, David M. Simpson
  • Patent number: 6174709
    Abstract: A process for exponentially amplifying a selected nucleic acid sequence present in a sample, comprising the steps of forming a mixture of the sample and a single primer designed to hybridize with the selected nucleic acid sequence; causing the single primer to hybridize to a single strand of the nucleic acid sequence of interest; forming a duplex product of the nucleic acid by a polymerase reaction; separating the duplex product into single strands; and repeating the preceding steps until the rate of production of the amplification product is exponential and the nucleic acid sequence of interest has been amplified.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: January 16, 2001
    Assignee: IGEN International, Inc.
    Inventors: John H. Kenten, John R. Link
  • Patent number: 6146838
    Abstract: A method for the detection or quantitation of a water-borne parasite, such as Cryptosporidia. The detection or quantitation is accomplished by an electrochemiluminescence assay comprising the steps of filtering water to obtain a sludge thought to contain the parasite or a fragment thereof; extracting a sample of said sludge in a extraction medium to form antigenic derivatives of said parasite; forming an assay mixture comprising a sample of said extracted sludge and an antibody specific to said antigenic derivative; incubating said assay mixture to permit binding of said antibody and said antigenic derivative; and conducting an electrochemiluminescence assay for the bound complex of antibody and antigenic derivative, thereby detecting or quantitating the Cryptosporidia in said water.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: November 14, 2000
    Assignee: IGEN International, Inc.
    Inventors: Richard O. Williams, John H. Kenten
  • Patent number: 6087476
    Abstract: The invention relates to luminescent chimeric proteins which include a photoprotein and a second protein which may be light- or heavy-chain immunoglobulin, an antigenic peptide, avidin, streptavidin, or protein A. The invention also relates to chimeric protein genes, plasmids containing said gene, and hosts transformed with said plasmid. The invention also relates to a range of highly sensitive immunoassays which use the chimeric proteins.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: July 11, 2000
    Assignee: IGEN International, Inc.
    Inventors: John H. Kenten, Jan Casadei, Michael J. Powell
  • Patent number: 6078782
    Abstract: The invention relates to methods of performing a binding assay for an analyte of interest present in a sample based upon electrochemiluminescence at an electrode of interest. Particles are employed in the method, which are then collected in a zone at which electrochemiluminescence can be induced, wherein the amount of induced electrochemiluminescence is related to the amount of analyte in the sample.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 20, 2000
    Assignee: IGEN International Inc.
    Inventors: John K. Leland, Haresh P. Shah, John H. Kenten, Jack E. Goodman, George E. Lowke, Yuzaburo Namba, Gary F. Blackburn, Richard J. Massey
  • Patent number: 6048687
    Abstract: This invention relates to an improved process for detecting and quantifying a desired nucleic acid sequence. The process involves synthesizing single stranded RNA, single stranded DNA, double-stranded DNA followed by detection using an electrochemiluminescent labeled binding species.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 11, 2000
    Assignee: IGEN International, Inc.
    Inventors: John H. Kenten, Rodger Smith
  • Patent number: 5962218
    Abstract: The invention relates to methods, apparatus, reagents, and kits for performing a binding assay for an analyte of interest present in a sample based upon electrochemiluminescence at an electrode of interest. In the method, reagents and kits particles can be employed; for instance, for settling upon the electrode surface by gravity, centrifugation or magnetic attraction. The apparatus can include a magnet for generating a magnetic field in a region proximate the electrode.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: October 5, 1999
    Assignee: IGEN International Inc.
    Inventors: Jonathan K. Leland, Haresh P. Shah, John H. Kenten, Jack E. Goodman, George E. Lowke, Gary F. Blackburn, Richard J. Massey
  • Patent number: 5935779
    Abstract: The invention relates to methods of performing a binding assay for an analyte of interest present in a sample based upon electrochemiluminescence at an electrode of interest. Particles are employed in the method, which are then collected in a zone at which electrochemiluminescence can be induced, wherein the amount of induced electrochemilurninescence is related to the amount of analyte in the sample.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: August 10, 1999
    Assignee: IGEN International Inc.
    Inventors: Richard J. Massey, Jonathan K. Leland, Haresh P. Shah, John H. Kenten, Jack E. Goodman, George E. Lowke, Yuzaburo Namba, Gary F. Blackburn
  • Patent number: 5855885
    Abstract: Disclosed and claimed are methods for producing catalytic antibodies, including human catalytic antibodies, from bacteriophage. The methods require the cloning, selection, screening, and isolation of catalytic antibodies. Also disclosed and claimed are the products themselves, the catalytic antibodies, made from the phage technology. In addition, catalytic antibodies produced from the phage technology and useful in prodrug activation are disclosed and claimed. And finally, the invention also understands the production of catalytic antibodies to phosphonates.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: January 5, 1999
    Inventors: Rodger Smith, John McCafferty, David Chiswell, Michael J. Darsley, Kevin Fitzgerald, John H. Kenten, Mark T. Martin, Richard C. Titmas, Richard O. Williams
  • Patent number: 5705402
    Abstract: Disclosed and claimed are methods and apparatus for performing a binding assay for an analyte of interest present in a sample based upon measurement of electrochemiluminescence at an electrode. The method uses magnetically responsive particles. The method and apparatus call for a plurality of electromagnets or permanent magnets in north-south orientation for imposing a magnetic field so as to collect the particles.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: January 6, 1998
    Assignees: Igen International, Inc., Eisai Co. Ltd.
    Inventors: Jonathan K. Leland, Haresh P. Shah, John H. Kenten, Jack E. Goodman, George E. Lowke, Yuzaburo Namba, Gary F. Blackburn, Richard J. Massey
  • Patent number: 5686244
    Abstract: This invention relates to a new electrochemiluminescent (ECL) label for oligonucleotides using phosphoramidite chemistry.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 11, 1997
    Assignee: IGEN Incorporated
    Inventors: Satyanarayana R. Gudibande, John H. Kenten
  • Patent number: 5658753
    Abstract: Catalytic antibody components, methods for producing catalytic antibody components, methods for using catalytic antibody components, in particular, single chain and smaller components are disclosed. Catalytic antibody components able to promote the cleavage or formation of an amide, peptide, ester or glycosidic bond, and which are prepared from monoclonal catalytic antibodies, catalytic autoantibodies or by site-directed mutagenesis are disclosed. Methods of using catalytic antibody components alone or in combination with other antibody components or other biological moieties are disclosed.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: August 19, 1997
    Inventors: Sudhir Paul, Michael J. Powell, Richard J. Massey, John H. Kenten
  • Patent number: 5635347
    Abstract: A method of detecting a nucleic acid sequence of interest in the amplification product of a polymerase chain reaction or other primer directed reaction comprising the steps of:(a) incorporating in a polymerase chain reaction mixture or other primer directed reaction mixture at least one nucleic acid sequence complementary to said nucleic acid sequence of interest labeled (i) at the 3' end thereof, or (ii) at the 3' and the 5' end thereof with a compound capable of electrochemiluminescence;(b) conducting a polymerase chain reaction or other primer directed reaction; and(c) measuring the electrochemiluminescence of labeled amplification product.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: June 3, 1997
    Assignee: IGEN, Inc.
    Inventors: John R. Link, Satyanarayana R. Gudibande, John H. Kenten
  • Patent number: 5610017
    Abstract: This invention relates to a new electrochemiluminescent (ECL) label for oligonucleotides using phosphoramidite chemistry.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 11, 1997
    Assignee: Igen, Inc.
    Inventors: Satyanarayana R. Gudibande, John H. Kenten
  • Patent number: 5597910
    Abstract: This invention relates to a new electrochemiluminescent (ECL) label for oligonucleotides using phosphoramidite chemistry.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 28, 1997
    Assignee: Igen, Inc.
    Inventors: Satyanarayana R. Gudibande, John H. Kenten
  • Patent number: 5229272
    Abstract: Catalytic antibody components, methods for producing catalytic antibody components, methods for using catalytic antibody components, in particular, single chain and smaller components are disclosed. Catalytic antibody components able to promote the cleavage or formation of an amide, peptide, ester or glycosidic bond, and which are prepared from monoclonal catalytic antibodies, catalytic autoantibodies or by site-directed mutagenesis are disclosed. Methods of using catalytic antibody components alone or in combination with other antibody components or other biological moieties are disclosed.
    Type: Grant
    Filed: March 23, 1990
    Date of Patent: July 20, 1993
    Assignee: Igen, Inc.
    Inventors: Sudhir Paul, Michael J. Powell, Richard J. Massey, John H. Kenten
  • Patent number: 4816397
    Abstract: Multichain polypeptides or proteins and processes for their production in cells of host organisms which have been transformed by recombinant DNA techniques. According to a first aspect of the present invention, there is provided a process for producing a heterologous multichain polypeptide or protein in a single host cell, which comprises transforming the host cell with DNA sequences coding for each of the polypeptide chains and expressing said polypeptide chains in said transformed host cell. According to another aspect of the present invention there is provided as a product of recombinant DNA technology an Ig heavy or light chain or fragment thereof having an intact variable domain. The invention also provides a process for increasing the level of protein expression in a transformed host cell and vectors and transformed host cells for use in the processes.
    Type: Grant
    Filed: November 14, 1984
    Date of Patent: March 28, 1989
    Assignee: Celltech, Limited
    Inventors: Michael A. Boss, John H. Kenten, John S. Emtage, Clive R. Wood