Patents by Inventor Gunjan Tiwari

Gunjan Tiwari 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: 10294526
    Abstract: Embodiments of the present invention provide substrates having controllably co-located polymers of different sequences. Methods are provided that allow the fabrication of arrays of polymers on a substrate having controllably co-located polymers in regions of the array. For example, polymers of nucleic acids and peptides having different sequences and or compositions can be co-located within a region of a substrate. Also provided are arrays of DNA polymers wherein polymers having two different sequences are co-located within a region of an array. The co-located DNA polymers can comprise complementary DNA that is able to hybridize and form double stranded DNA. Arrays having regions comprising double stranded DNA are provided.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 21, 2019
    Assignee: Intel Corporation
    Inventors: Yuan Gao, Gunjan Tiwari
  • Publication number: 20170356044
    Abstract: Embodiments of the present invention provide substrates having controllably co-located polymers of different sequences. Methods are provided that allow the fabrication of arrays of polymers on a substrate having controllably co-located polymers in regions of the array. For example, polymers of nucleic acids and peptides having different sequences and or compositions can be co-located within a region of a substrate. Also provided are arrays of DNA polymers wherein polymers having two different sequences are co-located within a region of an array. The co-located DNA polymers can comprise complementary DNA that is able to hybridize and form double stranded DNA. Arrays having regions comprising double stranded DNA are provided.
    Type: Application
    Filed: August 28, 2017
    Publication date: December 14, 2017
    Inventors: Yuan Gao, Gunjan Tiwari
  • Patent number: 9745628
    Abstract: Embodiments of the present invention provide substrates having controllably co-located polymers of different sequences. Methods are provided that allow the fabrication of arrays of polymers on a substrate having controllably co-located polymers in regions of the array. For example, polymers of nucleic acids and peptides having different sequences and or compositions can be co-located within a region of a substrate. Also provided are arrays of DNA polymers wherein polymers having two different sequences are co-located within a region of an array. The co-located DNA polymers can comprise complementary DNA that is able to hybridize and form double stranded DNA. Arrays having regions comprising double stranded DNA are provided.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: August 29, 2017
    Assignee: Intel Corporation
    Inventors: Yuan Gao, Gunjan Tiwari
  • Patent number: 9499578
    Abstract: Methods for fabricating dense arrays of polymeric molecules in a highly multiplexed manner are provided using semiconductor-processing-derived lithographic methods. Advantageously, the methods are adaptable to the synthesis of a variety of polymeric compounds. For example, arrays of branched peptides and polymers joined by peptide bonds may be fabricated in a highly multiplexed manner.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: November 22, 2016
    Assignee: Intel Corporation
    Inventors: John J. Rajasekaran, Edelmira Cabezas, Jacqueline A. Fidanza, Gunjan Tiwari
  • Patent number: 9096953
    Abstract: The embodiments of the invention relate to a system and method for making a biomolecule microarray comprising a spacer attachment module adapted to attach a linker to a substrate surface of the biomolecule microarray, a coupling module adapted to couple a molecule to the linker, the molecule being capable of forming a peptide bond and containing a protecting group that prevents the formation of the peptide bond, and a deprotection module adapted to create deprotection of the protecting group with a radiation exposure of about 1-50 mJ/cm2.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: August 4, 2015
    Assignee: INTEL CORPORATION
    Inventors: Narayan Sundararajan, John J. Rajasekaran, Guangyu Xu, Gunjan Tiwari, Edelmira Cabezas
  • Publication number: 20140213484
    Abstract: Embodiments of the present invention provide substrates having controllably co-located polymers of different sequences. Methods are provided that allow the fabrication of arrays of polymers on a substrate having controllably co-located polymers in regions of the array. For example, polymers of nucleic acids and peptides having different sequences and or compositions can be co-located within a region of a substrate. Also provided are arrays of DNA polymers wherein polymers having two different sequences are co-located within a region of an array. The co-located DNA polymers can comprise complementary DNA that is able to hybridize and form double stranded DNA. Arrays having regions comprising double stranded DNA are provided.
    Type: Application
    Filed: April 3, 2014
    Publication date: July 31, 2014
    Inventors: YUAN GAO, GUNJAN TIWARI
  • Patent number: 8697605
    Abstract: Embodiments of the present invention provide substrates having controllably co-located polymers of different sequences. Methods are provided that allow the fabrication of arrays of polymers on a substrate having controllably co-located polymers in regions of the array. For example, polymers of nucleic acids and peptides having different sequences and or compositions can be co-located within a region of a substrate. Also provided are arrays of DNA polymers wherein polymers having two different sequences are co-located within a region of an array. The co-located DNA polymers can comprise complementary DNA that is able to hybridize and form double stranded DNA. Arrays having regions comprising double stranded DNA are provided.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: April 15, 2014
    Assignee: Intel Corporation
    Inventors: Yuan Gao, Gunjan Tiwari
  • Publication number: 20100248975
    Abstract: The embodiments of the invention relate to a biomolecule microarray comprising a plurality of different polypeptides, where the polypeptides contain a kinase recognition sequence connected via a linker sequence to a metal binding amino acid that undergoes chelation enhanced fluorescence upon binding to a divalent cation. The embodiments further relate to kits comprising the microarray, and methods of using the microarray to screen for kinase activity, and to screen for inhibitors of kinase activity.
    Type: Application
    Filed: December 29, 2006
    Publication date: September 30, 2010
    Inventors: Gunjan Tiwari, Jiangtao Yu, Steven Sundberg
  • Publication number: 20100240555
    Abstract: The embodiments of the invention relate to a system and method for making a biomolecule microarray comprising a spacer attachment module adapted to attach a linker to a substrate surface of the biomolecule microarray, a coupling module adapted to couple a molecule to the linker, the molecule being capable of forming a peptide bond and containing a protecting group that prevents the formation of the peptide bond, and a deprotection module adapted to create deprotection of the protecting group with a radiation exposure of about 1-50 mJ/cm2.
    Type: Application
    Filed: September 29, 2006
    Publication date: September 23, 2010
    Inventors: Narayan Sundararajan, John J. Rajasekaran, Guangyu Xu, Gunjan Tiwari, Edelmira Cabezas
  • Publication number: 20090325817
    Abstract: Embodiments of the present invention provide substrates having controllably co-located polymers of different sequences. Methods are provided that allow the fabrication of arrays of polymers on a substrate having controllably co-located polymers in regions of the array. For example, polymers of nucleic acids and peptides having different sequences and or compositions can be co-located within a region of a substrate. Also provided are arrays of DNA polymers wherein polymers having two different sequences are co-located within a region of an array. The co-located DNA polymers can comprise complementary DNA that is able to hybridize and form double stranded DNA. Arrays having regions comprising double stranded DNA are provided.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventors: Yuan Gao, Gunjan Tiwari
  • Publication number: 20090258796
    Abstract: Methods for fabricating dense arrays of polymeric molecules in a highly multiplexed manner are provided using semiconductor-processing-derived lithographic methods. Advantageously, the methods are adaptable to the synthesis of a variety of polymeric compounds. For example, arrays of branched peptides and polymers joined by peptide bonds may be fabricated in a highly multiplexed manner.
    Type: Application
    Filed: June 4, 2008
    Publication date: October 15, 2009
    Inventors: John J. Rajasekaran, Edelmira Cabezas, Jacqueline A. Fidanza, Gunjan Tiwari
  • Publication number: 20080318808
    Abstract: Methods for fabricating dense arrays of polymeric molecules in a highly multiplexed manner are provided using semiconductor-processing-derived lithographic methods. Advantageously, the methods are adaptable to the synthesis of a variety of polymeric compounds. For example, arrays of branched peptides and polymers joined by peptide bonds may be fabricated in a highly multiplexed manner.
    Type: Application
    Filed: June 4, 2008
    Publication date: December 25, 2008
    Inventors: John J. Rajasekaran, Edelmira Cabezas, Jacqueline Fidanza, Gunjan Tiwari
  • Publication number: 20080242561
    Abstract: Methods for fabricating dense arrays of polymeric molecules in a highly multiplexed manner are provided using semiconductor-processing-derived lithographic methods. Advantageously, the methods are adaptable to the synthesis of a variety of polymeric compounds. For example, arrays of branched peptides and polymers joined by peptide bonds may be fabricated in a highly multiplexed manner.
    Type: Application
    Filed: June 4, 2008
    Publication date: October 2, 2008
    Inventors: John J. Rajasekaran, Edelmira Cabezas, Jacqueline A. Fidanza, Gunjan Tiwari
  • Publication number: 20080161202
    Abstract: A method for selective regulation of a background surface property of an array by adding a first building block molecule capable of forming a nucleotide or an amino acid bond on the spot and the background surface, adding a first protecting group to protect the first building block molecule on the spot and adding a second protecting group to protect the first building block molecule on the background surface, wherein the first protecting group is different from the second protecting group is disclosed. An array comprising a substrate comprising a substrate surface comprising a branched molecule wherein one end of branched molecule is attached to the substrate surface and the other end has many branches, further comprising a spacer in the branches to spread the branches and fluorophore molecules attached to the branches such that an average spacing between two fluorophore molecules is greater than 10 nm is disclosed.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Inventors: Edelmira Cabezas, Gunjan Tiwari, Jacqueline A. Fidanza, Yuan Gao
  • Publication number: 20070154946
    Abstract: Methods for fabricating dense arrays of polymeric molecules in a highly multiplexed manner are provided using semiconductor-processing-derived lithographic methods. Advantageously, the methods are adaptable to the synthesis of a variety of polymeric compounds. For example, arrays of branched peptides and polymers joined by peptide bonds may be fabricated in a highly multiplexed manner.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 5, 2007
    Inventors: John Rajasekaran, Edelmira Cabezas, Jacqueline Fidanza, Gunjan Tiwari
  • Publication number: 20070122842
    Abstract: Methods for fabricating dense arrays of polymeric molecules in a highly multiplexed manner are provided using semiconductor-processing-derived lithographic methods. Advantageously, the methods are adaptable to the synthesis of a variety of polymeric compounds. For example, arrays of peptides and polymers joined by peptide bonds may be fabricated in a highly multiplexed manner.
    Type: Application
    Filed: March 30, 2006
    Publication date: May 31, 2007
    Inventors: John Rajasekaran, Gunjan Tiwari, Edelmira Cabezas, Jacqueline Fidanza, Narayan Sundararajan
  • Publication number: 20070122841
    Abstract: Methods for fabricating dense arrays of polymeric molecules in a highly multiplexed manner are provided using semiconductor-processing-derived lithographic methods. Advantageously, the methods are adaptable to the synthesis of a variety of polymeric compounds. For example, arrays of peptides and polymers joined by peptide bonds may be fabricated in a highly multiplexed manner.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: John Rajasekaran, Gunjan Tiwari, Edelmira Cabezas, Jacqueline Fidanza, Narayan Sundararajan