Patents by Inventor Robert Earl Campbell

Robert Earl Campbell 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: 10800829
    Abstract: Provided herein are variants of an archaerhodopsin useful for application such as optical measurement of membrane potential. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, cells comprising the polynucleotides, and cells comprising the polypeptides; and methods of using the variants.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: October 13, 2020
    Assignees: President and Fellows of Harvard College, The Governors of the University of Alberta
    Inventors: Adam Ezra Cohen, Daniel Hochbaum, Peng Zou, Samouil Leon Farhi, Robert Earl Campbell, Yongxin Zhao, Daniel Jed Harrison
  • Publication number: 20200123218
    Abstract: Provided herein are variants of an archaerhodopsin useful for application such as optical measurement of membrane potential. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, cells comprising the polynucleotides, and cells comprising the polypeptides; and methods of using the variants.
    Type: Application
    Filed: October 16, 2019
    Publication date: April 23, 2020
    Applicants: President and Fellows of Harvard College, The Governors of the University of Alberta
    Inventors: Adam Ezra Cohen, Daniel Hochbaum, Peng Zou, Samouil Leon Farhi, Robert Earl Campbell, Yongxin Zhao, Daniel Jed Harrison
  • Patent number: 10457715
    Abstract: Provided herein are variants of an archaerhodopsin useful for application such as optical measurement of membrane potential. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, cells comprising the polynucleotides, and cells comprising the polypeptides; and methods of using the variants.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: October 29, 2019
    Assignees: President and Fellows of Harvard College, The Governors of the University of Alberta
    Inventors: Adam E. Cohen, Daniel Hochbaum, Peng Zou, Samouil Leon Farhi, Robert Earl Campbell, Yongxin Zhao, Daniel Jed Harrison
  • Publication number: 20170313757
    Abstract: Provided herein are variants of an archaerhodopsin useful for application such as optical measurement of membrane potential. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, cells comprising the polynucleotides, and cells comprising the polypeptides; and methods of using the variants.
    Type: Application
    Filed: November 28, 2016
    Publication date: November 2, 2017
    Applicants: President and Fellows of Harvard College, The Governors of the University of Alberta
    Inventors: Adam E. Cohen, Daniel Hochbaum, Peng Zou, Samouil Leon Farhi, Robert Earl Campbell, Yongxin Zhao, Daniel Jed Harrison
  • Patent number: 9518103
    Abstract: Provided herein are variants of an archaerhodopsin useful for application such as optical measurement of membrane potential. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, cells comprising the polynucleotides, and cells comprising the polypeptides; and methods of using the variants.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: December 13, 2016
    Assignees: President and Fellows of Harvard College, The Governors of the University of Alberta
    Inventors: Adam E. Cohen, Daniel Hochbaum, Peng Zou, Samouil Leon Farhi, Robert Earl Campbell, Yongxin Zhao, Daniel Jed Harrison
  • Publication number: 20150369740
    Abstract: Provided herein are variants of an archaerhodopsin useful for application such as optical measurement of membrane potential. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, cells comprising the polynucleotides, and cells comprising the polypeptides; and methods of using the variants.
    Type: Application
    Filed: June 17, 2015
    Publication date: December 24, 2015
    Applicants: President and Fellows of Harvard College, The Governors of the University of Alberta
    Inventors: Adam E. Cohen, Daniel Hochbaum, Peng Zou, Samouil Leon Farhi, Robert Earl Campbell, Yongxin Zhao, Daniel Jed Harrison
  • Patent number: 9145447
    Abstract: The present disclosure provides an isolated nucleic acid sequence encoding a monomeric photoconvertible fluorescent protein, and fragments and derivatives thereof. Also provided is a method for engineering the nucleic acid sequence, a vector comprising the nucleic acid sequence, a host cell comprising the vector, and use of the vector in a method for expressing the nucleic acid sequence. The present disclosure further provides an isolated nucleic acid, or mimetic or complement thereof, that hybridizes under stringent conditions to the nucleic acid sequence. Additionally, the present provides a monomeric photoconvertible fluorescent protein encoded by the nucleic acid sequence, as well as derivatives, fragments, and homologues thereof. Also provided is an antibody that specifically binds to the photoconvertible fluorescent protein.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: September 29, 2015
    Assignees: Allele Biotechnology & Pharmaceuticals, Inc., University of Alberta, TEC Edmonton
    Inventors: Jiwu Wang, Robert Earl Campbell, Hiofan Hoi, Nathan Christopher Shaner
  • Publication number: 20110214192
    Abstract: The present disclosure provides an isolated nucleic acid sequence encoding a monomeric photoconvertible fluorescent protein, and fragments and derivatives thereof. Also provided is a method for engineering the nucleic acid sequence, a vector comprising the nucleic acid sequence, a host cell comprising the vector, and use of the vector in a method for expressing the nucleic acid sequence. The present disclosure further provides an isolated nucleic acid, or mimetic or complement thereof, that hybridizes under stringent conditions to the nucleic acid sequence. Additionally, the present provides a monomeric photoconvertible fluorescent protein encoded by the nucleic acid sequence, as well as derivatives, fragments, and homologues thereof. Also provided is an antibody that specifically binds to the photoconvertible fluorescent protein.
    Type: Application
    Filed: December 3, 2010
    Publication date: September 1, 2011
    Inventors: Jiwu Wang, Robert Earl Campbell, Hiofan Hoi, Nathan Christopher Shaner
  • Patent number: 7935801
    Abstract: An isolated nucleic acid sequence encoding a non-oligomerizing Clavularia teal fluorescent protein (TFP) variant having a tyrosine-derived chromophore, and fragments and derivatives thereof. Also provided is a method for engineering the nucleic acid sequence, a vector comprising the nucleic acid sequence, a host cell comprising the vector, and use of the vector in a method for expressing the nucleic acid sequence. The present invention further provides an isolated nucleic acid, or mimetic or complement thereof, that hybridizes under stringent conditions to the nucleic acid sequence. Additionally, the present invention provides a non-oligomerizing TFP variant encoded by the nucleic acid sequence, as well as derivatives, fragments, and homologues thereof. Also provided is an antibody that specifically binds to the TFP variant. The present invention further provides a tandem dimer comprising two TFP dimers, operatively linked by a peptide linker.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: May 3, 2011
    Assignee: The Governors of the University of Alberta
    Inventors: Robert Earl Campbell, Hu-Wang Al
  • Patent number: 7790868
    Abstract: The present invention provides an isolated nucleic acid sequence encoding a non-oligomerizing Clavularia teal fluorescent protein (mTFP) variant having a tyrosine-derived chromophore, as well as fragments and derivatives thereof. Also provided is a method for engineering the nucleic acid sequence, a vector comprising the nucleic acid sequence, a host cell comprising the vector, and use of the vector in a method for expressing the nucleic acid sequence. The present invention further provides an isolated nucleic acid, or mimetic or complement thereof, that hybridizes under stringent conditions to the nucleic acid sequence. Additionally, the present invention provides a non-oligomerizing mTFP variant encoded by the nucleic acid sequence, as well as derivatives, fragments, and homologues thereof. Also provided is an antibody that specifically binds to the mTFP variant. The present invention further provides a tandem dimer comprising two mTFP dimers, operatively linked by a peptide linker.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: September 7, 2010
    Assignee: The Governors of the University of Alberta
    Inventors: Robert Earl Campbell, Hui-Wang Ai
  • Publication number: 20090170194
    Abstract: An isolated nucleic acid sequence encoding a non-oligomerizing Clavularia teal fluorescent protein (TFP) variant having a tyrosine-derived chromophore, and fragments and derivatives thereof. Also provided is a method for engineering the nucleic acid sequence, a vector comprising the nucleic acid sequence, a host cell comprising the vector, and use of the vector in a method for expressing the nucleic acid sequence. The present invention further provides an isolated nucleic acid, or mimetic or complement thereof, that hybridizes under stringent conditions to the nucleic acid sequence. Additionally, the present invention provides a non-oligomerizing TFP variant encoded by the nucleic acid sequence, as well as derivatives, fragments, and homologues thereof. Also provided is an antibody that specifically binds to the TFP variant. The present invention further provides a tandem dimer comprising two TFP dimers, operatively linked by a peptide linker.
    Type: Application
    Filed: November 30, 2007
    Publication date: July 2, 2009
    Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA
    Inventors: Robert Earl CAMPBELL, Hui-Wang AI