Patents by Inventor Linhua Fang

Linhua Fang 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: 7074600
    Abstract: Disclosed are compositions and a method for amplification of nucleic acid sequences of interest. The disclosed method generally involves replication of a target sequence such that, during replication, the replicated strands are displaced from the target sequence by strand displacement replication of another replicated strand. In one form of the disclosed method, the target sample is not subjected to denaturing conditions. It was discovered that the target nucleic acids, genomic DNA, for example, need not be denatured for efficient multiple displacement amplification. The primers used can be hexamer primers. The primers can also each contain at least one modified nucleotide such that the primers are nuclease resistant. The primers can also each contain at least one modified nucleotide such that the melting temperature of the primer is altered relative to a primer of the same sequence without the modified nucleotide(s). The DNA polymerase can be ?29 DNA polymerase.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: July 11, 2006
    Assignee: Qiagen GmbH
    Inventors: Frank B. Dean, Roger S. Lasken, Linhua Fang, A. Fawad Faruqi, Osama A. Alsmadi, Mark D. Driscoll, Seiyu Hosono, Michele Wisniewski, Wanmin Song
  • Patent number: 6977148
    Abstract: Disclosed are compositions and a method for amplification of nucleic acid sequences of interest. The disclosed method generally involves replication of a target sequence such that, during replication, the replicated strands are displaced from the target sequence by strand displacement replication of another replicated strand. In one form of the disclosed method, the target sample is not subjected to denaturing conditions. It was discovered that the target nucleic acids, genomic DNA, for example, need not be denatured for efficient multiple displacement amplification. The primers used can be hexamer primers. The primers can also each contain at least one modified nucleotide such that the primers are nuclease resistant. The primers can also each contain at least one modified nucleotide such that the melting temperature of the primer is altered relative to a primer of the same sequence without the modified nucleotide(s). The DNA polymerase can be ?29 DNA polymerase.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: December 20, 2005
    Assignee: Qiagen GmbH
    Inventors: Frank B. Dean, Roger S. Lasken, Linhua Fang, A. Fawad Faruqi, Osama A. Alsmadi, Mark D. Driscoll, Seiyu Hosono
  • Publication number: 20040161742
    Abstract: Disclosed are compositions and a method for amplification of nucleic acid sequences of interest. The disclosed method generally involves replication of a target sequence such that, during replication, the replicated strands are displaced from the target sequence by strand displacement replication of another replicated strand. In one form of the disclosed method, the target sample is not subjected to denaturing conditions. It was discovered that the target nucleic acids, genomic DNA, for example, need not be denatured for efficient multiple displacement amplification. The primers used can be hexamer primers. The primers can also each contain at least one modified nucleotide such that the primers are nuclease resistant. The primers can also each contain at least one modified nucleotide such that the melting temperature of the primer is altered relative to a primer of the same sequence without the modified nucleotide(s). The DNA polymerase can be &phgr;29 DNA polymerase.
    Type: Application
    Filed: October 15, 2001
    Publication date: August 19, 2004
    Inventors: Frank B. Dean, Roger S. Lasken, Linhua Fang, A. Fawad Faruqi, Osama A. Alsmadi, Mark D. Driscoll, Seiyu Hosono
  • Publication number: 20030143587
    Abstract: Disclosed are compositions and a method for amplification of nucleic acid sequences of interest. The disclosed method generally involves replication of a target sequence such that, during replication, the replicated strands are displaced from the target sequence by strand displacement replication of another replicated strand. In one form of the disclosed method, the target sample is not subjected to denaturing conditions. It was discovered that the target nucleic acids, genomic DNA, for example, need not be denatured for efficient multiple displacement amplification. The primers used can be hexamer primers. The primers can also each contain at least one modified nucleotide such that the primers are nuclease resistant. The primers can also each contain at least one modified nucleotide such that the melting temperature of the primer is altered relative to a primer of the same sequence without the modified nucleotide(s). The DNA polymerase can be &phgr;29 DNA polymerase.
    Type: Application
    Filed: October 15, 2002
    Publication date: July 31, 2003
    Applicant: Molecular Staging, Inc.
    Inventors: Frank B. Dean, Roger S. Lasken, Linhua Fang, A. Fawad Faruqi, Osama A. Alsmadi, Mark D. Driscoll, Seiyu Hosono, Michele Wisniewski, Wanmin Song