Patents by Inventor Kirk James Hayenga

Kirk James Hayenga 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: 6966992
    Abstract: The current invention provides methods for molecule purification by RP-LC and RP-HPLC that uses unbranched terminal alkyldiols as eluting solvents. In particular, the present invention purifies molecules, particularly proteins and peptides, on reverse phase liquid chromatography columns using a buffer containing either 1,5 pentanediol, 1,6 hexanediol or 1,7 heptanediol.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: November 22, 2005
    Assignee: Akzo Nobel NV
    Inventors: Terry Allen Hauser, Kirk James Hayenga
  • Publication number: 20030224482
    Abstract: Novel vectors are disclosed for expressing and secreting heterologous polypeptides from filamentous fungi. Such vectors are used in novel processes to express and secrete such heterologous polypeptides. The vectors used for transforming a filamentous fungus to express and secrete a heterologous polypeptide include a DNA sequence encoding a heterologous polypeptide and a DNA sequence encoding a signal sequence which is functional in a secretory system in a given filamentous fungus and which is operably linked to the sequence encoding the heterologous polypeptide. Such signal sequences may be the signal sequence normally associated with the heterologous polypeptides or may be derived from other sources. The vector may also contain DNA sequences encoding a promoter sequence which is functionally recognized by the filamentous fungus and which is operably linked to the DNA sequence encoding the signal sequence.
    Type: Application
    Filed: February 6, 2003
    Publication date: December 4, 2003
    Applicant: Genencor International, Inc.
    Inventors: Randy Michael Berka, Daniel Cullen, Gregory Lawrence Gray, Kirk James Hayenga, Virgil Bryan Lawlis
  • Publication number: 20030044955
    Abstract: Novel vectors are disclosed for expressing and secreting heterologous polypeptides from filamentous fungi. Such vectors are used in novel processes to express and secrete such heterologous polypeptides. The vectors used for transforming a filamentous fungus to express and secrete a heterologous polypeptide include a DNA sequence encoding a heterologous polypeptide and a DNA sequence encoding a signal sequence which is functional in a secretory system in a given filamentous fungus and which is operably linked to the sequence encoding the heterologous polypeptide. Such signal sequences may be the signal sequence normally associated with the heterologous polypeptides or may be derived from other sources. The vector may also contain DNA sequences encoding a promoter sequence which is functionally recognized by the filamentous fungus and which is operably linked to the DNA sequence encoding the signal sequence.
    Type: Application
    Filed: March 20, 2002
    Publication date: March 6, 2003
    Applicant: Genencor International, Inc.
    Inventors: Randy Michael Berka, Daniel Cullen, Gregory Lawrence Gray, Kirk James Hayenga, Virgil Bryan Lawlis
  • Publication number: 20020183483
    Abstract: The current invention provides methods for molecule purification by RP-LC and RP-HPLC that uses unbranched terminal alkyldiols as eluting solvents. In particular, the present invention purifies molecules, particularly proteins and peptides, on reverse phase liquid chromatography columns using a buffer containing either 1,5 pentanediol, 1,6 hexanediol or 1,7 heptanediol.
    Type: Application
    Filed: March 19, 2001
    Publication date: December 5, 2002
    Inventors: Terry Allen Hauser, Kirk James Hayenga
  • Patent number: 6437101
    Abstract: Methods are provided in this invention for the isolation of human growth hormone, growth hormone antagonist, or a homologue of either, from a biological source. The methods of the invention use multi-phase extraction.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: August 20, 2002
    Assignee: Akzo Nobel N.V.
    Inventors: Kirk James Hayenga, Pascal P. Valex
  • Patent number: 6379928
    Abstract: Novel vectors are disclosed for expressing and secreting heterologous polypeptides from filamentous fungi. Such vectors are used in novel processes to express and secrete such heterologous polypeptides. The vectors used for transforming a filamentous fungus to express and secrete a heterologous polypeptide include a DNA sequence encoding a heterologous polypeptide and a DNA sequence encoding a signal sequence which is functional in a secretory system in a given filamentous fungus and which is operably linked to the sequence encoding the heterologous polypeptide. Such signal sequences may be the signal sequence normally associated with the heterologous polypeptides or may be derived from other sources. The vector may also contain DNA sequences encoding a promoter sequence which is functionally recognized by the filamentous fungus and which is operably linked to the DNA sequence encoding the signal sequence.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: April 30, 2002
    Assignee: Genencor International, Inc.
    Inventors: Randy Michael Berka, Daniel Cullen, Gregory Lawrence Gray, Kirk James Hayenga, Virgil Bryan Lawlis
  • Patent number: 6171817
    Abstract: Novel vectors are disclosed for expressing and secreting heterologous polypeptides from filamentous fungi. Such vectors are used in novel processes to express and secrete such heterologous polypeptides. The vectors used for transforming a filamentous fungus to express and secrete a heterologous polypeptide include a DNA sequence encoding a heterologous polypeptide and a DNA sequence encoding a signal sequence which is functional in a secretory system in a given filamentous fungus and which is operably linked to the sequence encoding the heterologous polypeptide. Such signal sequences may be the signal sequence normally associated with the heterologous polypeptides or may be derived from other sources. The vector may also contain DNA sequences encoding a promoter sequence which is functionally recognized by the filamentous fungus and which is operably linked to the DNA sequence encoding the signal sequence.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: January 9, 2001
    Assignee: Genencor International, Inc.
    Inventors: Randy Michael Berka, Daniel Cullen, Gregory Lawrence Gray, Kirk James Hayenga, Virgil Bryan Lawlis
  • Patent number: 6103490
    Abstract: Novel vectors are disclosed for expressing and secreting heterologous polypeptides from filamentous fungi. Such vectors are used in novel processes to express and secrete such heterologous polypeptides. The vectors used for transforming a filamentous fungus to express and secrete a heterologous polypeptide include a DNA sequence encoding a heterologous polypeptide and a DNA sequence encoding a signal sequence which is functional in a secretory system in a given filamentous fungus and which is operably linked to the sequence encoding the heterologous polypeptide. Such signal sequences may be the signal sequence normally associated with the heterologous polypeptides or may be derived from other sources. The vector may also contain DNA sequences encoding a promoter sequence which is functionally recognized by the filamentous fungus and which is operably linked to the DNA sequence encoding the signal sequence.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: August 15, 2000
    Assignee: Genencor International, Inc.
    Inventors: Randy Michael Berka, Daniel Cullen, Gregory Lawrence Gray, Kirk James Hayenga, Virgil Bryan Lawlis
  • Patent number: 6004785
    Abstract: Novel vectors are disclosed for expressing and secreting heterologous polypeptides from filamentous fungi. Such vectors are used in novel processes to express and secrete such heterologous polypeptides. The vectors used for transforming a filamentous fungus to express and secrete a heterologous polypeptide include a DNA sequence encoding a heterologous polypeptide and a DNA sequence encoding a signal sequence which is functional in a secretory system in a given filamentous fungus and which is operably linked to the sequence encoding the heterologous polypeptide. Such signal sequences may be the signal sequence normally associated with the heterologous polypeptides or may be derived from other sources. The vector may also contain DNA sequences encoding a promoter sequence which is functionally recognized by the filamentous fungus and which is operably linked to the DNA sequence encoding the signal sequence.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 21, 1999
    Assignee: Genencor International Inc.
    Inventors: Randy Michael Berka, Daniel Cullen, Gregory Lawrence Gray, Kirk James Hayenga, Virgil Bryan Lawlis