Patents by Inventor David A. Tirrell

David A. Tirrell 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: 10640546
    Abstract: In some aspects, the invention relates to an insulin derivative, comprising a cyclic amino acid at position B28 or B29, wherein the cyclic amino acid is not L-proline. In some aspects, the invention relates to a method of making said insulin derivative. In some aspects, the invention relates to a pharmaceutical composition comprising said insulin derivative. In some aspects the invention relates to a method of treating a disease or condition in a subject comprising administering to the subject a composition comprising said insulin derivative.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: May 5, 2020
    Assignee: California Institute of Technology
    Inventors: David A. Tirrell, Seth Lieblich, Katharine Y. Fang, Howard C. Zisser
  • Patent number: 10407482
    Abstract: The invention provides compositions and methods of identifying, modifying and producing modified target molecules, including therapeutic molecules by modification with non-natural amino acids. Certain aspects of the invention include methods of adding a chemical moiety to a target molecule, and the compositions resulting therefrom. Certain aspects of the invention also relate to kits for identifying, modifying and producing modified target molecules described herein.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: September 10, 2019
    Assignee: ALLOZYNE, INC.
    Inventors: Kenneth H. Grabstein, David A. Tirrell
  • Publication number: 20150353619
    Abstract: In some aspects, the invention relates to an insulin derivative, comprising a cyclic amino acid at position B28 or B29, wherein the cyclic amino acid is not L-proline. In some aspects, the invention relates to a method of making said insulin derivative. In some aspects, the invention relates to a pharmaceutical composition comprising said insulin derivative. In some aspects the invention relates to a method of treating a disease or condition in a subject comprising administering to the subject a composition comprising said insulin derivative.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 10, 2015
    Inventors: David A. Tirrell, Seth Lieblich, Katherine Y. Fang, Howard C. Zisser
  • Publication number: 20140255345
    Abstract: The invention provides compositions and methods of identifying, modifying and producing modified target molecules, including therapeutic molecules by modification with non-natural amino acids. Certain aspects of the invention include methods of adding a chemical moiety to a target molecule, and the compositions resulting therefrom. Certain aspects of the invention also relate to kits for identifying, modifying and producing modified target molecules described herein.
    Type: Application
    Filed: October 16, 2013
    Publication date: September 11, 2014
    Applicant: Allozyne, Inc.
    Inventors: Kenneth H. Grabstein, David A. Tirrell
  • Publication number: 20140255991
    Abstract: Methods for producing modified polypeptides containing amino acid analogues are disclosed. The invention further provides purified dihydrofolate reductase polypeptides, produced by the methods of the invention, in which the methionine residues have been replaced with homoallylglycine, homoproparglycine, norvaline, norleucine, cis-crotylglycine, trans-crotylglycine, 2-aminoheptanoic acid, 2-butynylglycine and allylglycine.
    Type: Application
    Filed: January 9, 2014
    Publication date: September 11, 2014
    Applicant: California Institute of Technology
    Inventors: David A. Tirrell, Kristi Lynn Kiick
  • Publication number: 20140127777
    Abstract: The present invention provides a method for producing modified stable polypeptides introducing at least one non-natural amino acid into the hydrophobic region of the polypeptide. The thermal and chemical stability of such polypeptides is improved compared to those properties of its corresponding wild type proteins. The invention further provides purified leucine zipper and coiled-coil proteins in which the leucine residues have been replaced with 5,5,5-trifluoroleucines, and the modified proteins so produced demonstrate increased thermal and chemical stability compared to their corresponding wild-type natural proteins.
    Type: Application
    Filed: October 29, 2013
    Publication date: May 8, 2014
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: David A. Tirrell, Yi Tang
  • Publication number: 20130012690
    Abstract: The present invention provides a method for producing modified stable polypeptides introducing at least one non-natural amino acid into the hydrophobic region of the polypeptide. The thermal and chemical stability of such polypeptides is improved compared to those properties of its corresponding wild type proteins. The invention further provides purified leucine zipper and coiled-coil proteins in which the leucine residues have been replaced with 5,5,5-trifluoroleucines, and the modified proteins so produced demonstrate increased thermal and chemical stability compared to their corresponding wild-type natural proteins.
    Type: Application
    Filed: January 20, 2012
    Publication date: January 10, 2013
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: David A. Tirrell, Yi Tang
  • Publication number: 20120231470
    Abstract: Methods and systems to identify compounds capable of altering a fatty acid elongation pathway and for identifying conditions under which fatty acids elongation can occur in a cell are described. The methods and systems comprise labeled fatty acid precursors and cells capable of elongating fatty acids. Methods for providing suitable components of an assay for identifying compounds capable of altering a fatty acid elongation pathway are described.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 13, 2012
    Inventors: Janek SZYCHOWSKI, David A. TIRRELL, Sungjin Park
  • Patent number: 8236344
    Abstract: The present invention provides engineered proteins and biomedical products made from the engineered proteins. The biomedical products include lenses useful for ophthalmic purposes.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: August 7, 2012
    Assignee: California Institute of Technology
    Inventors: David A. Tirrell, Daniel M. Schwartz, Paul J. Nowatzki, Robert H. Grubbs
  • Publication number: 20120077228
    Abstract: Methods for producing modified polypeptides containing amino acid analogues are disclosed. The invention further provides purified dihydrofolate reductase polypeptides, produced by the methods of the invention, in which the methionine residues have been replaced with homoallylglycine, homoproparglycine, norvaline, norleucine, cis-crotylglycine, trans-crotylglycine, 2-aminoheptanoic acid, 2-butynylglycine and allylglycine.
    Type: Application
    Filed: April 28, 2011
    Publication date: March 29, 2012
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: David A. Tirrell, Kristi Lynn Kiick
  • Publication number: 20120064563
    Abstract: The present disclosure describes cell-based sensors. Cell-based sensors can comprise cells coupled with a sensor for sensing change of configuration and/or movement of the cells. Such changes of configuration and/or movement of the cells can be sensed through changes to one or more parameters such as electrical, mechanical and/or optical parameters. By way of example, the sensors can be magnetic based sensors or electrochemical sensors.
    Type: Application
    Filed: August 11, 2011
    Publication date: March 15, 2012
    Inventors: Alborz MAHDAVI, Hua WANG, David A. Tirrell, Seyed Ali HAJIMIRI
  • Publication number: 20100261652
    Abstract: There is provided in one embodiment of the disclosure a tissue adhesive composition comprising an engineered protein having repeated blocks of an elastin domain and at least one cell-binding domain and further comprising a polymer crosslinker. When the engineered protein and the polymer crosslinker are introduced onto a tissue, the engineered protein and the polymer crosslinker initiate an in situ crosslinking reaction to form an adhesive bond that is mechanically strong, transparent, biocompatible, and stimulates regrowth of one or more tissue layers over the adhesive bond. In another embodiment of the disclosure there is provided a molded corneal onlay and method of making the same.
    Type: Application
    Filed: March 29, 2010
    Publication date: October 14, 2010
    Applicant: California Institute of Technology
    Inventors: Muzhou Wang, Matthew S. Mattson, David A. Tirrell, Julia A. Kornfield
  • Publication number: 20100233242
    Abstract: The present invention provides engineered proteins and biomedical products made from the engineered proteins. The biomedical products include lenses useful for ophthalmic purposes.
    Type: Application
    Filed: June 4, 2007
    Publication date: September 16, 2010
    Applicants: CALIFORNIA INSTITUTE OF TECHNOLOGY, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: DAVID A. TIRRELL, Daniel M. Schwartz, Paul J. Nowatzki, Robert H. Grubbs
  • Publication number: 20100184193
    Abstract: Methods for producing modified polypeptides containing amino acid analogues are disclosed. The invention further provides purified dihydrofolate reductase polypeptides, produced by the methods of the invention, in which the methionine residues have been replaced with homoallylglycine, homoproparglycine, norvaline, norleucine, cis-crotylglycine, trans-crotylglycine, 2-aminoheptanoic acid, 2-butynylglycine and allylglycine.
    Type: Application
    Filed: December 17, 2009
    Publication date: July 22, 2010
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: David A. Tirrell, Kristi Lynn Kiick
  • Patent number: 7723070
    Abstract: Methods for producing modified polypeptides containing amino acid analogues are disclosed. The invention further provides purified dihydrofolate reductase polypeptides, produced by the methods of the invention, in which the methionine residues have been replaced with homoallylglycine, homoproparglycine, norvaline, norleucine, cis-crotylglycine, trans-crotylglycine, 2-aminoheptanoic acid, 2-butynylglycine and allylglycine.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: May 25, 2010
    Assignee: California Institute of Technology
    Inventors: David A. Tirrell, Kristi Lynn Kiick
  • Publication number: 20090221790
    Abstract: The present invention provides a method for producing modified stable polypeptides introducing at least one non-natural amino acid into the hydrophobic region of the polypeptide. The thermal and chemical stability of such polypeptides is improved compared to those properties of its corresponding wild type proteins. The invention further provides purified leucine zipper and coiled-coil proteins in which the leucine residues have been replaced with 5,5,5-trifluoroleucines, and the modified proteins so produced demonstrate increased thermal and chemical stability compared to their corresponding wild-type natural proteins.
    Type: Application
    Filed: October 7, 2008
    Publication date: September 3, 2009
    Applicant: California Institute of Technology
    Inventors: David A. Tirrell, Yi Tang
  • Publication number: 20090221448
    Abstract: The present invention provides a microarray having one or more fusion proteins non-covalently attached to a solid support. Non-covalent attachment is achieved by designing a fusion protein having a polyanionic domain attached to a subject protein, and attaching the fusion protein to a solid support having a polycationic coating.
    Type: Application
    Filed: September 15, 2008
    Publication date: September 3, 2009
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventor: David A. Tirrell
  • Patent number: 7462463
    Abstract: The present invention provides a microarray having one or more fusion proteins non-covalently attached to a solid support. Non-covalent attachment is achieved by designing a fusion protein having a polyanionic domain attached to a subject protein, and attaching the fusion protein to a solid support having a polycationic coating.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: December 9, 2008
    Assignee: California Institute of Technology
    Inventor: David A. Tirrell
  • Patent number: 7449443
    Abstract: The present invention provides a method for producing modified stable polypeptides introducing at least one non-natural amino acid into the hydrophobic region of the polypeptide. The thermal and chemical stability of such polypeptides is improved compared to those properties of its corresponding wild type proteins. The invention further provides purified leucine zipper and coiled-coil proteins in which the leucine residues have been replaced with 5,5,5-trifluoroleucines, and the modified proteins so produced demonstrate increased thermal and chemical stability compared to their corresponding wild-type natural proteins.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: November 11, 2008
    Assignee: California Institute of Technology
    Inventors: David A. Tirrell, Yi Tang
  • Publication number: 20080160609
    Abstract: Methods for producing modified polypeptides containing amino acid analogues are disclosed. The invention further provides purified dihydrofolate reductase polypeptides, produced by the methods of the invention, in which the methionine residues have been replaced with homoallylglycine, homoproparglycine, norvaline, norleucine, cis-crotylglycine, trans-crotylglycine, 2-aminoheptanoic acid, 2-butynylglycine and allylglycine.
    Type: Application
    Filed: May 2, 2007
    Publication date: July 3, 2008
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: David A. Tirrell, Kristi Lynn Kiick