Patents by Inventor Dan Tawfik

Dan Tawfik 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: 9528106
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalizing genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: December 27, 2016
    Assignee: Medical Research Council
    Inventors: Andrew Griffiths, Dan Tawfik
  • Publication number: 20140187762
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having the desired activity using a change in the optical properties of the genetic elements. The invention enables the in vitro evolution of nucleic acids and proteins by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Application
    Filed: November 21, 2013
    Publication date: July 3, 2014
    Applicant: MEDICAL RESEARCH COUNCIL
    Inventors: Andrew Griffiths, Dan Tawfik, Armin Sepp
  • Patent number: 8367326
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: February 5, 2013
    Assignee: Medical Research Council
    Inventors: Andrew Griffiths, Dan Tawfik
  • Patent number: 7897341
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having the desired activity using a change in the optical properties of the genetic elements. The invention enables the in vitro evolution of nucleic acids and proteins by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: March 1, 2011
    Assignee: Medical Research Council
    Inventors: Andrew Griffiths, Dan Tawfik, Armin Sepp
  • Publication number: 20090325236
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having the desired activity using a change in the optical properties of the genetic elements. The invention enables the in vitro evolution of nucleic acids and proteins by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Application
    Filed: December 19, 2008
    Publication date: December 31, 2009
    Inventors: Andrew Griffiths, Dan Tawfik, Armin Sepp
  • Patent number: 7638276
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: December 29, 2009
    Assignee: 454 Life Sciences Corporation
    Inventors: Andrew Griffiths, Dan Tawfik
  • Patent number: 7582446
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: September 1, 2009
    Assignee: Medical Research Council
    Inventors: Andrew Griffiths, Dan Tawfik
  • Publication number: 20090053700
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having the desired activity using a change in the optical properties of the genetic elements. The invention enables the in vitro evolution of nucleic acids and proteins by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Application
    Filed: June 18, 2007
    Publication date: February 26, 2009
    Inventors: Andrew Griffiths, Dan Tawfik, Armin Sepp
  • Publication number: 20080004436
    Abstract: The present invention is related to the field of compartmentalized libraries of genetic elements and the selection of biologically active molecules and the genes encoding same from said libraries. The selection assay of the invention utilizes water-in-oil emulsions and is particularly advantageous in applications in the field of directed-evolution, as exemplified herein for selection of protein inhibitors of DNA nucleases.
    Type: Application
    Filed: November 15, 2005
    Publication date: January 3, 2008
    Applicants: YEDA RESEARCH AND DEVELOPMENT CO. LTD. at the Weizmann Institute of Science, YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM
    Inventors: Dan Tawfik, Kalia Bernath, Shlomo Magdassi, Sergio Peisajovich
  • Publication number: 20070259374
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Application
    Filed: June 21, 2007
    Publication date: November 8, 2007
    Applicant: Medical Research Council
    Inventors: Andrew Griffiths, Dan Tawfik
  • Patent number: 7252943
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: compartmentalizing genetic elements into microcapsules; expressing the genetic elements to produce their respective gene products within the microcapsules; sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: August 7, 2007
    Assignee: Medical Research Council
    Inventors: Andrew Griffiths, Dan Tawfik
  • Publication number: 20070077579
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Application
    Filed: September 8, 2006
    Publication date: April 5, 2007
    Inventors: Andrew Griffiths, Dan Tawfik
  • Publication number: 20070077572
    Abstract: The present invention provides an in vitro system for compartmentalization of molecular or cellular libraries and provides methods for selection and isolation of desired molecules or cells from the libraries. The library includes a plurality of distinct molecules or cells encapsulated within a water-in-oil-in-water emulsion. The emulsion includes a continuous external aqueous phase and a discontinuous dispersion of water-in-oil droplets. The internal aqueous phase of a plurality of such droplets comprises a specific molecule or cell that is within the plurality of distinct molecules or cells of the library.
    Type: Application
    Filed: May 24, 2006
    Publication date: April 5, 2007
    Applicants: YEDA RESEARCH AND DEVELOPMENT CO. LTD., YISSUM RESEARCH DEVELOPMENT COMPANY THE HEBREW UNIVERSITY OF JERUSALEM, MEDICAL RESEARCH COUNCIL
    Inventors: Dan Tawfik, Kalia Bernath, Amir Aharoni, Sergio Peisajovich, Andrew Griffiths, Enrico Mastrobattista, Shlomo Magdassi
  • Patent number: 7138233
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: November 21, 2006
    Assignee: Medical Research Council
    Inventors: Andrew Griffiths, Dan Tawfik
  • Publication number: 20060205933
    Abstract: Isolated polynucleotides and polypeptides encoded therefrom are provided. These include mutated PON enzymes with increased, modified or substantially the same substrate specificity as compared to respective wild-type PON. Also provided are kits and methods using these enzymes.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 14, 2006
    Inventors: Dan Tawfik, Amir Aharoni, Leonid Gaydukov, Joel Sussman, Isreal Silman
  • Publication number: 20060003347
    Abstract: The invention relates to a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising the steps of: a) providing a population of genetic elements and expressing the genetic elements to produce their respective gene product(s), such that each molecule of gene product is linked to the genetic element encoding it at a ratio of one molecule of gene product per genetic element or less; b) compartmentalising the genetic elements into microcapsules; and c) sorting the genetic elements according to the activity of the gene product.
    Type: Application
    Filed: March 11, 2005
    Publication date: January 5, 2006
    Inventors: Andrew Griffiths, Dan Tawfik
  • Publication number: 20050164239
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having the desired activity using a change in the optical properties of the genetic elements. The invention enables the in vitro evolution of nucleic acids and proteins by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Application
    Filed: October 1, 2004
    Publication date: July 28, 2005
    Inventors: Andrew Griffiths, Dan Tawfik, Armin Sepp
  • Publication number: 20050069920
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Application
    Filed: June 3, 2004
    Publication date: March 31, 2005
    Inventors: Andrew Griffiths, Dan Tawfik
  • Publication number: 20050042648
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising of the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having a desired activity. The invention enables the in vitro evolution of nucleic acids by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Application
    Filed: June 4, 2004
    Publication date: February 24, 2005
    Inventors: Andrew Griffiths, Dan Tawfik
  • Publication number: 20050037392
    Abstract: The invention describes a method for isolating one or more genetic elements encoding a gene product having a desired activity, comprising the steps of: (a) compartmentalising genetic elements into microcapsules; (b) expressing the genetic elements to produce their respective gene products within the microcapsules; (c) sorting the genetic elements which produce the gene product having the desired activity using a change in the optical properties of the genetic elements. The invention enables the in vitro evolution of nucleic acids and proteins by repeated mutagenesis and iterative applications of the method of the invention.
    Type: Application
    Filed: June 11, 2004
    Publication date: February 17, 2005
    Inventors: Andrew Griffiths, Dan Tawfik, Armin Sepp