Patents by Inventor Stacey L. Lee
Stacey L. Lee 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).
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Publication number: 20180291412Abstract: The invention is a process for improved production of a recombinant mammalian protein by expression in a Pseudomonad, particularly in a Pseudomonas fluorescens organism. The process improves production of mammalian proteins, particularly human or human-derived proteins, over known expression systems such as E. coli in comparable circumstances. Processes for improved production of isolated mammalian, particularly human, proteins are provided.Type: ApplicationFiled: June 21, 2018Publication date: October 11, 2018Inventors: Diane M. Retallack, Charles H. Squires, David C. Watkins, Stacey L. Lee, Frank H. Gaertner, Robert Shutter
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Patent number: 10041102Abstract: The invention is a process for improved production of a recombinant mammalian protein by expression in a Pseudomonad, particularly in a Pseudomonas fluorescens organism. The process improves production of mammalian proteins, particularly human or human-derived proteins, over known expression systems such as E. coli in comparable circumstances. Processes for improved production of isolated mammalian, particularly human, proteins are provided.Type: GrantFiled: August 5, 2016Date of Patent: August 7, 2018Assignee: PFENEX INC.Inventors: Diane M. Retallack, Charles H. Squires, David C. Watkins, Stacey L. Lee, Frank H. Gaertner, Robert Shutter
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Publication number: 20170051327Abstract: The invention is a process for improved production of a recombinant mammalian protein by expression in a Pseudomonad, particularly in a Pseudomonas fluorescens organism. The process improves production of mammalian proteins, particularly human or human-derived proteins, over known expression systems such as E. coli in comparable Circumstances Processes for improved production of isolated mammalian, particularly human, proteins are provided.Type: ApplicationFiled: August 5, 2016Publication date: February 23, 2017Inventors: Diane M. Retallack, Charles H. Squires, David C. Watkins, Stacey L. Lee, Frank H. Gaertner, Robert Shutter
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Patent number: 9458487Abstract: The invention is a process for improved production of a recombinant mammalian protein by expression in a Pseudomonad, particularly in a Pseudomonas fluorescens organism. The process improves production of mammalian proteins, particularly human or human-derived proteins, over known expression systems such as E. coli in comparable circumstances Processes for improved production of isolated mammalian, particularly human, proteins are provided.Type: GrantFiled: April 7, 2006Date of Patent: October 4, 2016Assignee: PFENEX, INC.Inventors: Diane M. Retallack, Charles H. Squires, David C. Watkins, Stacey L. Lee, Frank H. Gaertner, Robert Shutter
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Patent number: 9453251Abstract: The invention is a process for improved production of a recombinant mammalian protein by expression in a Pseudomonad, particularly in a Pseudomonas fluorescens organism. The process improves production of mammalian proteins, particularly human or human-derived proteins, over known expression systems such as E. coli in comparable circumstances Processes for improved production of isolated mammalian, particularly human, proteins are provided.Type: GrantFiled: January 18, 2005Date of Patent: September 27, 2016Assignee: PFENEX INC.Inventors: Diane M. Retallack, Charles H. Squires, David C. Watkins, Stacey L. Lee, Frank H. Gaertner, Robert Shutter
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Patent number: 8318481Abstract: Provided herein are improved copy number plasmids, particularly those plasmids capable of replication in a bacterial cell. The improved copy number plasmid contain a deletion, insertion, or substitution in the replication control region, particularly a Pseudomonas-specific replication control region, that results in an increase in plasmid copy number in comparison to a control plasmid. Also provided are host cells containing the improved copy number plasmids, as well as methods of using the improved copy number plasmids for the recombinant production of a protein of interest. Further provided are methods for generating plasmids with improved copy number. The methods disclosed herein involve the reiterative selection of improved copy number plasmids by the growth and selection of plasmids capable of growth under increasing selective pressure, wherein the selective pressure is applied utilizing a selection agent to which the control plasmid confers resistance.Type: GrantFiled: December 5, 2008Date of Patent: November 27, 2012Assignee: Pfenex Inc.Inventors: Lawrence C. Chew, Stacey L. Lee
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Publication number: 20110020868Abstract: Compositions and methods for improving expression and/or secretion of a polypeptide of interest in a host cell are provided. Compositions including a coding sequence for a bacterial secretion signal peptide are provided. The compositions of the invention are useful for increasing accumulation of properly processed proteins in the periplasmic space of a host cell, or for increasing secretion of properly processed proteins. In particular, isolated secretion signal peptide-encoding nucleic acid molecules are provided. Additionally, amino acid sequences corresponding to the nucleic acid molecules are encompassed. The present invention provides for isolated nucleic acid molecules including nucleotide sequences encoding the amino acid sequences shown in SEQ ID NO: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24, and the nucleotide sequences set forth in SEQ ID NO: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, and 23, as well as variants and fragments thereof.Type: ApplicationFiled: September 16, 2010Publication date: January 27, 2011Applicant: PFENEX, INC.Inventors: Russell J. Coleman, Diane Retallack, Stacey L. Lee, Charles D. Hershberger
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Patent number: 7833752Abstract: Compositions and methods for improving expression and/or secretion of a polypeptide of interest in a host cell are provided. Compositions including a coding sequence for a bacterial secretion signal peptide are provided. The compositions of the invention are useful for increasing accumulation of properly processed proteins in the periplasmic space of a host cell, or for increasing secretion of properly processed proteins. In particular, isolated secretion signal peptide-encoding nucleic acid molecules are provided. Additionally, amino acid sequences corresponding to the nucleic acid molecules are encompassed. The present invention provides for isolated nucleic acid molecules including nucleotide sequences encoding the amino acid sequences shown in SEQ ID NO:2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24, and the nucleotide sequences set forth in SEQ ID NO:1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, and 23, as well as variants and fragments thereof.Type: GrantFiled: October 22, 2009Date of Patent: November 16, 2010Assignee: Pfenex, Inc.Inventors: Russell J. Coleman, Diane M. Retallack, Stacey L. Lee, Charles D. Hershberger
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Publication number: 20090162898Abstract: Provided herein are improved copy number plasmids, particularly those plasmids capable of replication in a bacterial cell. The improved copy number plasmid contain a deletion, insertion, or substitution in the replication control region, particularly a Pseudomonas-specific replication control region, that results in an increase in plasmid copy number in comparison to a control plasmid. Also provided are host cells containing the improved copy number plasmids, as well as methods of using the improved copy number plasmids for the recombinant production of a protein of interest. Further provided are methods for generating plasmids with improved copy number. The methods disclosed herein involve the reiterative selection of improved copy number plasmids by the growth and selection of plasmids capable of growth under increasing selective pressure, wherein the selective pressure is applied utilizing a selection agent to which the control plasmid confers resistance.Type: ApplicationFiled: December 5, 2008Publication date: June 25, 2009Applicant: Dow Global Technologies Inc.Inventors: Lawrence C. Chew, Stacey L. Lee