Patents Assigned to PILLAR BIOSCIENCES INC.
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Patent number: 11913069Abstract: The present invention relates to a scalable multiplex PCR method that can simultaneously amplify overlapping amplicons without the drawbacks of conventional multiplex PCR. The method selectively amplifying target nucleic acid fragments having an overlapping region. The method comprises the steps of: obtaining a first nucleic acid sequence comprising a first tag t2 and a first forward primer F1, obtaining a second nucleic acid sequence comprising a second tag t1 and a first reverse primer R1, obtaining a third nucleic acid sequence comprising the second tag t1 and a second forward primer F2, obtaining a fourth nucleic acid sequence comprising a third tag 3 and a second reverse primer R2, wherein each primer is a gene-specific primer; performing initial cycles of PCR; and then performing later cycles of PCR at higher annealing temperatures to obtain amplification products.Type: GrantFiled: August 26, 2021Date of Patent: February 27, 2024Assignee: PILLAR BIOSCIENCES INC.Inventors: Zhaohui Wang, Gang Song
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Patent number: 11104945Abstract: The present invention relates to a scalable multiplex PCR method that can simultaneously amplify overlapping amplicons without the drawbacks of conventional multiplex PCR. The method selectively amplifying target nucleic acid fragments having an overlapping region. The method comprises the steps of: obtaining a first nucleic acid sequence comprising a first tag t2 and a first forward primer F1, obtaining a second nucleic acid sequence comprising a second tag t1 and a first reverse primer R1, obtaining a third nucleic acid sequence comprising the second tag t1 and a second forward primer F2, obtaining a fourth nucleic acid sequence comprising a third tag t3 and a second reverse primer R2, wherein each primer is a gene-specific primer; performing initial cycles of PCR; and then performing later cycles of PCR at higher annealing temperatures to obtain amplification products.Type: GrantFiled: March 1, 2019Date of Patent: August 31, 2021Assignee: Pillar Biosciences Inc.Inventors: Zhaohui Wang, Gang Song
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Patent number: 10221448Abstract: The present invention relates to a scalable multiplex PCR method that can simultaneously amplify overlapping amplicons without the drawbacks of conventional multiplex PCR. The method selectively amplifying target nucleic acid fragments having an overlapping region. The method comprises the steps of: obtaining a first nucleic acid sequence comprising a first tag t2 and a first forward primer F1, obtaining a second nucleic acid sequence comprising a second tag t1 and a first reverse primer R1, obtaining a third nucleic acid sequence comprising the second tag t1 and a second forward primer F2, obtaining a fourth nucleic acid sequence comprising a third tag t3 and a second reverse primer R2, wherein each primer is a gene-specific primer; performing initial cycles of PCR; and then performing later cycles of PCR at higher annealing temperatures to obtain amplification products.Type: GrantFiled: December 30, 2016Date of Patent: March 5, 2019Assignee: Pillar Biosciences Inc.Inventors: Zhaohui Wang, Gang Song
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Patent number: 10011869Abstract: The present invention relates to a scalable multiplex PCR method that can simultaneously amplify overlapping amplicons without the drawbacks of conventional multiplex PCR. The method selectively amplifying target nucleic acid fragments having an overlapping region. The method comprises the steps of: obtaining a first nucleic acid sequence comprising a first tag t2 and a first forward primer F1, obtaining a second nucleic acid sequence comprising a second tag t1 and a first reverse primer R1, obtaining a third nucleic acid sequence comprising the second tag t1 and a second forward primer F2, obtaining a fourth nucleic acid sequence comprising a third tag t3 and a second reverse primer R2, wherein each primer is a gene-specific primer; performing initial cycles of PCR; and then performing later cycles of PCR at higher annealing temperatures to obtain amplification products.Type: GrantFiled: March 1, 2016Date of Patent: July 3, 2018Assignee: PILLAR BIOSCIENCES INC.Inventors: Zhaohui Wang, Gang Song
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Patent number: 9605305Abstract: The present invention reduces primer-dimer amplification in a multiplex polymerase chain reaction (PCR). When a first forward primer (F1) and a second reverse primer (R2) have a complementary region at their 3?ends, primer dimers may form. The present method uses a primer comprising a 5?-end partial sequence or a full sequence of a first forward primer (F1^) in between a first tag (t1) and R2 to reduce the primer-dimer (F1_R2) amplification.Type: GrantFiled: June 16, 2016Date of Patent: March 28, 2017Assignee: PILLAR BIOSCIENCES INC.Inventors: Zhaohui Wang, Gang Song