Patents by Inventor Danwei Guo

Danwei Guo 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: 11817180
    Abstract: Nucleic acid sequence mapping/assembly methods are disclosed. The methods initially map only a contiguous portion of each read to a reference sequence and then extends the mapping of the read at both ends of the mapped contiguous portion until the entire read is mapped (aligned). In various embodiments, a mapping score can be calculated for the read alignment using a scoring function, score (i, j)=M+mx, where M can be the number of matches in the extended alignment, x can be the number of mismatches in the alignment, and m can be a negative penalty for each mismatch. The mapping score can be utilized to rank or choose the best alignment for each read.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: November 14, 2023
    Assignee: Life Technologies Corporation
    Inventors: Zheng Zhang, Danwei Guo, Yuandan Lou, Asim Siddiqui, Dumitru Brinza
  • Publication number: 20200051663
    Abstract: Nucleic acid sequence mapping/assembly methods are disclosed. The methods initially map only a contiguous portion of each read to a reference sequence and then extends the mapping of the read at both ends of the mapped contiguous portion until the entire read is mapped (aligned). In various embodiments, a mapping score can be calculated for the read alignment using a scoring function, score (i, j)=M+mx, where M can be the number of matches in the extended alignment, x can be the number of mismatches in the alignment, and m can be a negative penalty for each mismatch. The mapping score can be utilized to rank or choose the best alignment for each read.
    Type: Application
    Filed: February 19, 2019
    Publication date: February 13, 2020
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Zheng ZHANG, Danwei GUO, Yuandan LOU, Asim SIDDIQUI, Dumitru BRINZA
  • Publication number: 20190276885
    Abstract: Disclosed are systems and methods for resequencing using color calls. A DNA sample is encoded and sequenced according to a multi-base code producing a string of read color calls for a fragment of the sample. A reference sequence is obtained. The string of read color calls is mapped to the reference sequence. A base sequence is extracted from the reference sequence. The base sequence is encoded as a string of reference color codes according to the multi-base code. The string of read color calls is aligned with the string of reference color codes and mismatches in the alignment are detected. One or more mismatches of the string of read color calls are annotated as inconsistent. The one or more inconsistent mismatches of the string of read color calls are corrected. The string of corrected read color calls is decoded to bases producing a read sequence.
    Type: Application
    Filed: February 27, 2019
    Publication date: September 12, 2019
    Inventors: Heinz Breu, Danwei Guo
  • Publication number: 20160333401
    Abstract: Disclosed are systems and methods for resequencing using color calls. A DNA sample is encoded and sequenced according to a multi-base code producing a string of read color calls for a fragment of the sample. A reference sequence is obtained. The string of read color calls is mapped to the reference sequence. A base sequence is extracted from the reference sequence. The base sequence is encoded as a string of reference color codes according to the multi-base code. The string of read color calls is aligned with the string of reference color codes and mismatches in the alignment are detected. One or more mismatches of the string of read color calls are annotated as inconsistent. The one or more inconsistent mismatches of the string of read color calls are corrected. The string of corrected read color calls is decoded to bases producing a read sequence.
    Type: Application
    Filed: April 15, 2016
    Publication date: November 17, 2016
    Inventors: Heinz BREU, Danwei GUO
  • Patent number: 9342651
    Abstract: Disclosed are systems and methods for resequencing using color calls. A DNA sample is encoded and sequenced according to a multi-base code producing a string of read color calls for a fragment of the sample. A reference sequence is obtained. The string of read color calls is mapped to the reference sequence. A base sequence is extracted from the reference sequence. The base sequence is encoded as a string of reference color codes according to the multi-base code. The string of read color calls is aligned with the string of reference color codes and mismatches in the alignment are detected. One or more mismatches of the string of read color calls are annotated as inconsistent. The one or more inconsistent mismatches of the string of read color calls are corrected. The string of corrected read color calls is decoded to bases producing a read sequence.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: May 17, 2016
    Assignee: Life Technologies Corporation
    Inventors: Heinz Breu, Danwei Guo
  • Publication number: 20110295514
    Abstract: Disclosed are systems and methods for resequencing using color calls. A DNA sample is encoded and sequenced according to a multi-base code producing a string of read color calls for a fragment of the sample. A reference sequence is obtained. The string of read color calls is mapped to the reference sequence. A base sequence is extracted from the reference sequence. The base sequence is encoded as a string of reference color codes according to the multi-base code. The string of read color calls is aligned with the string of reference color codes and mismatches in the alignment are detected. One or more mismatches of the string of read color calls are annotated as inconsistent. The one or more inconsistent mismatches of the string of read color calls are corrected. The string of corrected read color calls is decoded to bases producing a read sequence.
    Type: Application
    Filed: May 13, 2011
    Publication date: December 1, 2011
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Heinz Breu, Danwei Guo
  • Publication number: 20110270533
    Abstract: Nucleic acid sequence mapping/assembly methods are disclosed. The methods initially map only a contiguous portion of each read to a reference sequence and then extends the mapping of the read at both ends of the mapped contiguous portion until the entire read is mapped (aligned). In various embodiments, a mapping score can be calculated for the read alignment using a scoring function, score (i, j)=M+mx, where M can be the number of matches in the extended alignment, x can be the number of mismatches in the alignment, and m can be a negative penalty for each mismatch. The mapping score can be utilized to rank or choose the best alignment for each read.
    Type: Application
    Filed: July 13, 2011
    Publication date: November 3, 2011
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: Zheng ZHANG, Danwei Guo, Yuandan Lou, Asim Siddiqui, Dumitru Brinza