Patents by Inventor Willem P.C. Stemmer

Willem P.C. Stemmer 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: 20100056385
    Abstract: In silico nucleic acid recombination methods, related integrated systems utilizing genetic operators and libraries made by in silico shuffling methods are provided.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 4, 2010
    Applicant: MAXYGEN, INC.
    Inventors: Sergey A. Selifonov, Willem P.C. Stemmer, Claes Gustafsson, Matthew Tobin, Stephen del Cardayre, Phillip A. Patten, Jeremy Minshull, Lorraine J. Giver
  • Patent number: 7629170
    Abstract: The invention provides methods employing iterative cycles of recombination and selection/screening for evolution of whole cells and organisms toward acquisition of desired properties. Examples of such properties include enhanced recombinogenicity, genome copy number, and capacity for expression and/or secretion of proteins and secondary metabolites.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: December 8, 2009
    Assignee: Maxygen, Inc.
    Inventors: Stephen delCardayre, Matthew B. Tobin, Willem P. C. Stemmer, Jon E. Ness, Jeremy S. Minshull, Phillip A. Patten, Venkiteswatan Mani Subramanian, Linda A. Castle, Claus M. Krebber, Steven H. Bass, Ying-Xin Zhang, Anthony R. Cox, Gjalt W. Huisman, Ling Yuan, Joseph A. Affholter
  • Patent number: 7620502
    Abstract: In silico nucleic acid recombination methods, related integrated systems utilizing genetic operators are used to identify sets of oligonucleotides for in vitro recombination.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: November 17, 2009
    Assignee: Maxygen, Inc.
    Inventors: Sergey A. Selifonov, Willem P. C. Stemmer, Claes Gustafsson, Matthew Tobin, Stephen del Cardayre, Phillip A. Patten, Jeremy Minshull, Lorraine J. Giver
  • Patent number: 7560622
    Abstract: The present invention provides methods of producing non-transgenic tissues or other agricultural products from a transgenic plant or other transgenic organism. Non-trausgenic organism parts, for example, are derived from transgenic organisms by expression of sequence-specific DNA cleaving enzymes that excise recombinant polynucleotide constructs from the organism's genome by cleaving the constructs at specific recognition sequences that flank the constructs.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: July 14, 2009
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventor: Willem P. C. Stemmer
  • Publication number: 20090149331
    Abstract: Methods are provided for the evolution of proteins of industrial and pharmaceutical interest, including methods for effecting recombination and selection. Compositions produced by these methods are also disclosed.
    Type: Application
    Filed: February 5, 2008
    Publication date: June 11, 2009
    Applicant: Maxygen, Inc.
    Inventors: Phillip A. Patten, Willem P.C. Stemmer
  • Patent number: 7534564
    Abstract: Methods are provided for the evolution of proteins of industrial and pharmaceutical interest, including methods for effecting recombination and selection. Compositions produced by these methods are also disclosed.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: May 19, 2009
    Assignee: Maxygen, Inc.
    Inventors: Phillip A. Patten, Willem P. C. Stemmer
  • Publication number: 20080318795
    Abstract: In silico nucleic acid recombination methods, related integrated systems utilizing genetic operators and libraries made by in silico shuffling methods are provided.
    Type: Application
    Filed: October 31, 2007
    Publication date: December 25, 2008
    Applicant: Maxygen, Inc.
    Inventors: Sergey A. Selifonov, Willem P.C. Stemmer, Claes Gustafsson, Matthew Tobin, Stephen del Cardayre, Phillip A. Patten, Jeremy Minshull, Lorraine J. Giver
  • Patent number: 7462469
    Abstract: Integrated systems and methods for diversity generation and screening are provided. The systems use common fluid and array handling components to provide nucleic acid diversification, transcription, translation, product screening and subsequent diversification reactions.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: December 9, 2008
    Assignee: Maxygen, Inc.
    Inventors: Steven H. Bass, S. Christopher Davis, Phillip A. Patten, Matthew Tobin, Jeremy Minshull, Mark Welch, Claes Gustafsson, Brian Carr, Stephane Jenne, Sun Ai Raillard, Andreas Crameri, Willem P. C. Stemmer, Robin Emig, Pascal Longchamp, Stanley Goldman, Lorraine J. Giver, Joseph A. Affholter
  • Publication number: 20080287314
    Abstract: Methods for identifying and controlling the genetic and metabolic pathways underlying complex phenotypes are provided. Conjoint polynucleotide segments that contribute to or disrupt elements of a multigenic phenotype are produced and expressed in cells of interest. Conjoint polynucleotide segments are recombined and/or mutated to give rise to libraries of recombinant concatamers which are expressed in cells of interest. Libraries of conjoint polynucleotide segments and recombinant concatamers are expressed episomally or integrated into the DNA of organelles or chromosomes. Cells are screened or selected to identify members of the population of cells exhibiting a desired phenotype. Libraries and vectors comprising conjoint polynucleotide segments and recombinant concatamers, as well as cells expressing such libraries and vectors or their components are provided.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 20, 2008
    Applicant: Maxygen, Inc.
    Inventors: Willem P.C. Stemmer, Jeremy Minshull, Robert J. Keenan
  • Publication number: 20080261833
    Abstract: A method for DNA reassembly after random fragmentation, and its application to mutagenesis of nucleic acid sequences by in vitro or in vivo recombination is described. In particular, a method for the production of nucleic acid fragments or polynucleotides encoding mutant proteins is described. The present invention also relates to a method of repeated cycles of mutagenesis, shuffling and selection which allow for the directed molecular evolution in vitro or in vivo of proteins.
    Type: Application
    Filed: August 22, 2007
    Publication date: October 23, 2008
    Applicant: MAXYGEN, INC.
    Inventors: WILLEM P.C. STEMMER, Andreas Crameri
  • Patent number: 7430477
    Abstract: In particular, this invention provides novel methods of populating data structures for use in evolutionary modeling. In particular, this invention provides methods of populating a data structure with a plurality of character strings. The methods involve encoding two or more a biological molecules into character strings to provide a collection of two or more different initial character strings; selecting at least two substrings from the pool of character strings; concatenating the substrings to form one or more product strings about the same length as one or more of the initial character strings; adding the product strings to a collection of strings; and optionally repeating this process using one or more of the product strings as an initial string in the collection of initial character strings.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: September 30, 2008
    Assignee: Maxygen, Inc.
    Inventors: Sergey A. Selifonov, Willem P. C. Stemmer
  • Publication number: 20080227649
    Abstract: The present invention is generally directed to the evolution of new metabolic pathways and the enhancement of bioprocessing through a process herein termed recursive sequence recombination. Recursive sequence recombination entails performing iterative cycles of recombination and screening or selection to “evolve” individual genes, whole plasmids or viruses, multigene clusters, or even whole genomes. Such techniques do not require the extensive analysis and computation required by conventional methods for metabolic engineering.
    Type: Application
    Filed: January 28, 2008
    Publication date: September 18, 2008
    Applicant: Maxygen, Inc.
    Inventors: Jeremy Minshull, Willem P.C. Stemmer
  • Patent number: 7421347
    Abstract: “In silico” nucleic acid recombination methods, related integrated systems utilizing genetic operators and libraries made by in silico shuffling methods are provided.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: September 2, 2008
    Assignee: Maxygen, Inc.
    Inventors: Sergey A. Selifonov, Willem P. C. Stemmer, Claes Gustafsson, Matthew Tobin, Stephen del Cardayre, Phillip A. Patten, Jeremy Minshull
  • Publication number: 20080171668
    Abstract: Methods of recombining nucleic acids, including homologous nucleic acids, are provided. Families of gene shuffling oligonucleotides and their use in recombination procedures, as well as polymerase and ligase mediated recombination methods are also provided.
    Type: Application
    Filed: November 30, 2007
    Publication date: July 17, 2008
    Applicant: Maxygen, Inc.
    Inventors: Andreas Crameri, Willem P.C. Stemmer, Jeremy Minshull, Steven H. Bass, Mark Welch, Jon E. Ness, Claes Gustafsson, Phillip A. Patten
  • Patent number: 7390619
    Abstract: This invention provides methods for obtaining molecules that can modulate an immune response, and immunomodulatory molecules obtained using the methods. The molecules find use, for example, in the tailoring of an immune response induced by a genetic vaccine for a desired purpose.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: June 24, 2008
    Assignee: Maxygen, Inc.
    Inventors: Juha Punnonen, Willem P. C. Stemmer, Robert Gerald Whalen, Russell J. Howard
  • Patent number: 7384387
    Abstract: Apparatus and methods for high throughput mass spectrometry are provided. The methods involve sample preparation in an off-line parallel purification system. Such methods include but are not limited to the use of an appropriate buffer when generating samples or the use of a solid support for tagged components. The samples prepared in this way do not then need to be column separated. The apparatus provided includes a cell growth plate for growing cells and generating products and/or reactants, an off-line parallel purification system, a mass spectrometer, and an automatic sampler that transports samples and injects them into the mass spectrometer of the apparatus. The methods and apparatus described are used, for example, in screening enzyme reaction pathways.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: June 10, 2008
    Assignee: Maxygen, Inc.
    Inventors: Sun Ai Raillard, Yong Hong Chen, Claus Krebber, Jeremy Minshull, Willem P. C. Stemmer
  • Patent number: 7288375
    Abstract: A method for DNA reassembly after random fragmentation, and its application to mutagenesis of nucleic acid sequences by in vitro or in vivo recombination is described. In particular, a method for the production of nucleic acid fragments or polynucleotides encoding mutant proteins is described. The present invention also relates to a method of repeated cycles of mutagenesis, shuffling and selection which allow for the directed molecular evolution in vitro or in vivo of proteins.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: October 30, 2007
    Assignee: Maxygen, Inc.
    Inventors: Willem P. C. Stemmer, Andreas Crameri
  • Patent number: 7148054
    Abstract: The invention provides methods employing iterative cycles of recombination and selection/screening for evolution of whole cells and organisms toward acquisition of desired properties Examples of such properties include enhanced recombinogenicity, genome copy number, and capacity for expression and/or secretion of proteins and secondary metabolites.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: December 12, 2006
    Assignee: Maxygen, Inc.
    Inventors: Stephen delCardayre, Matthew Tobin, Willem P. C. Stemmer, Jon E. Ness, Jeremy Minshull, Phillip Patten, Venkiteswatan Subramanian, Linda A. Castle, Claus M. Krebber, Steve Bass, Ying-Xin Zhang, Tony Cox, Gjalt Huisman, Ling Yuan, Joseph A. Affholter
  • Patent number: 7105297
    Abstract: The present invention is generally directed to the evolution of new metabolic pathways and the enhancement of bioprocessing through a process herein termed recursive sequence recombination. Recursive sequence recombination entails performing iterative cycles of recombination and screening or selection to “evolve” individual genes, whole plasmids or viruses, multigene clusters, or even whole genomes. Such techniques do not require the extensive analysis and computation required by conventional methods for metabolic engineering.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: September 12, 2006
    Assignee: Maxygen, Inc.
    Inventors: Jeremy Minshull, Willem P. C. Stemmer
  • Patent number: 7058515
    Abstract: “In silico” nucleic acid recombination methods, related integrated systems utilizing genetic operators and libraries made by in silico shuffling methods are provided.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: June 6, 2006
    Assignee: Maxygen, Inc.
    Inventors: Sergey A. Selifonov, Willem P. C. Stemmer, Claes Gustafsson, Matthew Tobin, Stephen del Cardayre, Phillip A. Patten, Jeremy Minshull, Lorraine J. Giver