Patents by Inventor Gerhard Johann

Gerhard Johann 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: 20040029174
    Abstract: This invention provides methods of obtaining novel polynucleotides and encoded polypeptides by the use of non-stochastic methods of directed evolution (DirectEvolution™). A particular advantage of end-selection-based methods is the ability to recover full-length polynucleotides from a library of progeny molecules generated by mutagenesis methods. These methods include non-stochastic polynucleotide site-saturation mutagenesis (Gene Site Saturation Mutagenesis™) and non-stochastic polynucleotide reassembly (GeneReassembly™). This invention provides methods of obtaining novel enzymes that have optimized physical &/or biological properties. Through use of the claimed methods, genetic vaccines, enzymes, small molecules, and other desirable molecules can be evolved towards desirable properties. For example, vaccine vectors can be obtained that exhibit increased efficacy for use as genetic vaccines.
    Type: Application
    Filed: March 5, 2003
    Publication date: February 12, 2004
    Inventors: Jay M. Short, Gerhard Johann Frey
  • Publication number: 20040023327
    Abstract: A directed evolution process comprising novel methods for generating improved progeny molecules having desirable properties, including, for example, a method for rapid and facilitated production from a parental polynucleotide template, of a set of mutagenized progeny polynucleotides wherein at least one codon encoding each of the 20 naturally encoded amino acids is represented at each original codon position. This method, termed site-saturation mutagenesis, or simply saturation mutagenesis, is preferably based on the use of the degenerate N,N,G/T sequence. Also, a method of producing from a parental polypeptide template, a set of mutagenized progeny polypeptides wherein each of the 20 naturally encoded amino acids is represented at each original amino acid position.
    Type: Application
    Filed: March 5, 2003
    Publication date: February 5, 2004
    Inventors: Jay M. Short, Gerhard Johann Frey
  • Publication number: 20030194763
    Abstract: This invention provides methods of obtaining novel polynucleotides and encoded polypeptides by the use of non-stochastic methods of directed evolution (DirectEvolution™). A particular advantage of end-selection-based methods is the ability to recover full-length polynucleotides from a library of progeny molecules generated by mutagenesis methods. These methods include non-stochastic polynucleotide site-saturation mutagenesis (Gene Site Saturation Mutagenesis™) and non-stochastic polynucleotide reassembly (GeneReassembly™). This invention provides methods of obtaining novel enzymes that have optimized physical &/or biological properties. Through use of the claimed methods, genetic vaccines, enzymes, small molecules, and other desirable molecules can be evolved towards desirable properties. For example, vaccine vectors can be obtained that exhibit increased efficacy for use as genetic vaccines.
    Type: Application
    Filed: March 14, 2002
    Publication date: October 16, 2003
    Applicant: Diversa Corporation
    Inventors: Jay M. Short, Gerhard Johann Frey
  • Publication number: 20020146762
    Abstract: This invention provides methods of obtaining novel polynucleotides and encoded polypeptides by the use of non-stochastic methods of directed evolution (DirectEvolution™). A particular advantage of end-selection-based methods is the ability to recover full-length polynucleotides from a library of progeny molecules generated by mutagenesis methods. These methods include non-stochastic polynucleotide site-saturation mutagenesis (Gene Site Saturation Mutagenesis™) and non-stochastic polynucleotide reassembly (GeneReassembly™). This invention provides methods of obtaining novel enzymes that have optimized physical &/or biological properties. Through use of the claimed methods, genetic vaccines, enzymes, small molecules, and other desirable molecules can be evolved towards desirable properties. For example, vaccine vectors, can be obtained that exhibit increased efficacy for use as genetic vaccines.
    Type: Application
    Filed: June 19, 2001
    Publication date: October 10, 2002
    Inventors: Jay M. Short, Gerhard Johann Frey
  • Publication number: 20020119457
    Abstract: A directed evolution process comprising novel methods for generating improved progeny molecules having desirable properties, including, for example, a method for rapid and facilitated production from a parental polynucleotide template, of a set of mutagenized progeny polynucleotides wherein at least one codon encoding each of the 20 naturally encoded amino acids is represented at each original codon position. This method, termed site-saturation mutagenesis, or simply saturation mutagenesis, is preferably based on the use of the degenerate N,N,G/T sequence. Also, a method of producing from a parental polypeptide template, a set of mutagenized progeny polypeptides wherein each of the 20 naturally encoded amino acids is represented at each original amino acid position.
    Type: Application
    Filed: May 29, 2001
    Publication date: August 29, 2002
    Inventors: Jay M. Short, Gerhard Johann Frey
  • Patent number: 6361974
    Abstract: This invention provides methods of obtaining novel polynucleotides and encoded polypeptides by the use of non-stochastic methods of directed evolution (DirectEvolution™). A particular advantage of exonuclease-mediated reassembly methods is the ability to reassemble nucleic acid strands that would otherwise be problematic to chimerize. Exonuclease-mediated reassembly methods can be used in combination with other mutagenesis methods provided herein. These methods include non-stochastic polynucleotide site-saturation mutagenesis (Gene Site Saturation Mutagenesis™) and non-stochastic polynucleotide reassembly (GeneReassembly™). This invention provides methods of obtaining novel enzymes that have optimized physical &/or biological properties. Through use of the claimed methods, genetic vaccines, enzymes, small molecules, and other desirable molecules can be evolved towards desirable properties.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: March 26, 2002
    Assignee: Diversa Corporation
    Inventors: Jay M. Short, Tsotne David Djavakhishvili, Gerhard Johann Frey
  • Patent number: 6358709
    Abstract: This invention provides methods of obtaining novel polynucleotides and encoded polypeptides by the use of non-stochastic methods of directed evolution (DirectEvolution™). A particular advantage of end-selection-based methods is the ability to recover full-length polynucleotides from a library of progeny molecules generated by mutagenesis methods. These methods include non-stochastic polynucleotide site-saturation mutagenesis (Gene Site Saturation Mutagenesis™) and non-stochastic polynucleotide reassembly (GeneReassembly™). This invention provides methods of obtaining novel enzymes that have optimized physical &/or biological properties. Through use of the claimed methods, genetic vaccines, enzymes, small molecules, and other desirable molecules can be evolved towards desirable properties. For example, vaccine vectors can be obtained that exhibit increased efficacy for use as genetic vaccines.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: March 19, 2002
    Assignee: Diversa Corporation
    Inventors: Jay M. Short, Gerhard Johann Frey
  • Patent number: 6238884
    Abstract: A directed evolution process comprising novel methods for generating improved progeny molecules having desirable properties, including, for example, a method for rapid and facilitated production from a parental polynucleotide template, of a set of mutagenized progeny polynucleotides wherein at least one codon encoding each of the 20 naturally encoded amino acids is represented at each original codon position. This method, termed site-saturation mutagenesis, or simply saturation mutagenesis, is preferably based on the use of the degenerate N,N,G/T sequence. Also, a method of producing from a parental polypeptide template, a set of mutagenized progeny polypeptides wherein each of the 20 naturally encoded amino acids is represented at each original amino acid position.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: May 29, 2001
    Assignee: Diversa Corporation
    Inventors: Jay M. Short, Gerhard Johann Frey
  • Patent number: 5668278
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: September 16, 1997
    Assignee: Hoeschst Schering AgrEvo GmbH
    Inventors: Uwe Hartfiel, Gabriele Dorfmeister, Helga Franke, Jens Geisler, Gerhard Johann, Richard Rees
  • Patent number: 5556986
    Abstract: The invention relates to new pyrazolylpyrazoles of general formula (I) in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meanings given in the description, processes for their preparation as well as intermediates, and their use as herbicides.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: September 17, 1996
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Uwe Hartfiel, Gabriele Dorfmeister, Helga Franke, Jens Geisler, Gerhard Johann, Richard Rees
  • Patent number: 5502028
    Abstract: Herbicidal haloacetic acid derivatives of the formula: ##STR1## and salts thereof, where: A is --N.dbd. or --CH.dbd.;X is halo;R.sup.1 and R.sup.2, which may be the same or different, each represent alkyl, alkoxy, haloalkyl, haloalkoxy, halo, alkylamino or dialkylamino;R.sup.3 is --CN, --COOR.sup.5, --CONR.sup.6 R.sup.7, --CSNH.sub.2, --CHO, --CH.dbd.Z, --CH(OAlkyl).sub.2, --CH.sub.2 OH, --CH.sub.2 OR.sup.9, or a substituted or unsubstituted 5- or 6-membered heterocyclic group linked via a ring carbon atom which is between two ring heteroatoms;R.sup.4 is H, or a substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl or aralkyl group;with R.sup.5, R.sup.6, R.sup.7, R.sup.9,and Z as defined in the specification.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: March 26, 1996
    Assignee: Schering Agrochemicals Limited
    Inventors: Christoph Harde, Gerhard Johann, Gabriele Kru/ ger, Richard Rees, Gerhard Tarara, Peter S. Gates
  • Patent number: 5424443
    Abstract: The invention relates to new substituted benzothiazole derivatives of general formula (I), in which X, Y and Z have the meanings given in the description, processes for their preparation and their use as herbicides.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: June 13, 1995
    Assignee: Schering Aktiengesellschaft
    Inventors: Michael Ganzer, Gabriele Dorfmeister, Wilfried Franke, Gerhard Johann, Richard Rees
  • Patent number: 5405829
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: April 11, 1995
    Assignee: Schering Aktiengesellschaft
    Inventors: Uwe Hartfiel, Gabriele Dorfmeister, Helga Franke, Jens Geisler, Gerhard Johann, Richard Rees
  • Patent number: 5270289
    Abstract: The invention relates to new substituted .alpha.-pyrimidinyloxy(thio)- and .alpha.-triazinyloxy(thio)carboxylic acid derivatives of general formula I ##STR1## in which A, R.sup.1-3, X and Y have the meanings given in the description, processes for their preparation and their use as herbicides, fungicides and plant growth regulants.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: December 14, 1993
    Assignee: Schering Aktiengesellschaft
    Inventors: Christoph Harde, Erhard Nordhoff, Anita Kruger, Gabriele Kruger, Gerhard Tarara, Peter Wegner, Nikolaus Heinrich, Clemens Kotter, Gerhard Johann, Richard Rees
  • Patent number: 5238907
    Abstract: The invention relates to new 2-pyrimidinyl- and 2-triazinylacetic acid derivatives of general formula I ##STR1## in which A, R.sup.2-5 and X have the meanings given in the description, processes for their preparation and their use as herbicides, fungicides and plant growth regulants.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: August 24, 1993
    Assignee: Schering Aktiengesellschaft
    Inventors: Gabriele Kruger, Christoph Harde, Nikolaus Heinrich, Anita Kruger, Erhard Nordhoff, Gerhard Tarara, Peter Wegner, Clemens Kotter, Gerhard Johann, Richard Rees, Graham P. Jones
  • Patent number: 5098465
    Abstract: The invention relates to new 2-pyrimidinyl- and 2-triazinylacetic acid derivatives of general formula I ##STR1## in which A, R.sup.2-5 and X have the meanings given in the description, processes for their preparation and their use as herbicides, fungicides and plant growth regulants.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: March 24, 1992
    Assignee: Shering Aktiengesellschaft
    Inventors: Gabriele Kruger, Christoph Harde, Nikolaus Heinrich, Anita Kruger, Erhard Nordhoff, Gerhard Tarara, Peter Wegner, Clemens Kotter, Gerhard Johann, Richard Rees, Graham P. Jones
  • Patent number: 5094682
    Abstract: The invention relates to new 1-(methoxypyrimidinyl)-N-nitrophenyl-1H-1,2,4-triazole-3-sulphonamides of general formula I ##STR1## in which R.sup.1 and R.sup.2 have the meanings given in the description, processes for their preparation and their use as herbicides.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: March 10, 1992
    Assignee: Schering Aktiengesellschaft
    Inventors: Gerhard Tarara, Gabriele Kruger, Peter Wegner, Richard Rees, Gerhard Johann
  • Patent number: 5089044
    Abstract: The invention relates to new substituted pyrimidinyloxy(thio)- and triazinyloxy(thio)acrylic acid derivative of general formula I ##STR1## in which A, G, R.sup.1-3, X and Y have the meanings given in the description, processes for their preparation and their use as herbicides, fungicides and plant growth regulants.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: February 18, 1992
    Assignee: Schering Aktiengesellschaft
    Inventors: Christoph Harde, Erhard Nordhoff, Anita Kruger, Gabriele Kruger, Gerhard Tarara, Peter Wegner, Nikolaus Heinrich, Clemens Kotter, Gerhard Johann, Richard Rees
  • Patent number: 4959094
    Abstract: The invention relates to new 1-chloropyrimidinyl-1H-1,2,4-triazol-3-sulphonamides of the general formual I ##STR1## in which A, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meanings given in the description, processes for their preparation and their use as herbicides.
    Type: Grant
    Filed: April 19, 1989
    Date of Patent: September 25, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Peter Wegner, Martin Kruger, Gerhard Johann, Reinhart Rusch, Richard Rees, John Head, Graham Rowson
  • Patent number: 4943310
    Abstract: The invention relates to new 4-benzoyl-3-hydroxy-5-oxo-3-cyclohexenecarboxylic acid derivatives of general formula I ##STR1## in which A, B, R.sup.1, R.sup.2, R.sup.2 and R.sup.3 have the meanings given in the description, and their use as plant growth regulants.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: July 24, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Alfred Angermann, Helga Franke, Gerhard Johann