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Bu Yin
Senior Counsel
Patents and Innovations
San Diego

D858-350-2377

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Bu Yin is senior counsel in the San Diego office of Wilson Sonsini Goodrich & Rosati, where his practice focuses on developing patent portfolios and providing strategic counseling in pharmaceuticals (particularly biologics), biotech tools (e.g., genomics, transcriptomics, and proteomics), agriculture and food (e.g., genetically modified insects as biopesticides), and other life sciences sectors.

Building on his immunology and molecular biology background, Bu works closely with companies developing vaccines, antibodies, RNA therapeutics (e.g., mRNAs, trans-splicing RNAs, and siRNAs), gene therapies (e.g., HSV, AAV, and non-viral vectors), cell therapies (e.g., CAR-T and stem cells), and antibiotics, among other therapeutic modalities. Bu is knowledgeable in immunoassays, PCRs, nucleic acid sample preparation and sequencing, analyte encoding/decoding, and multi-omics data analytics, particularly those for high-throughput, single-cell, spatial, and/or in situ analysis.

Bu has significant experience supporting patent litigation and Patent Office proceedings, including in connection with enzyme replacement therapy, transgenic plant as host for producing human proteins, chromatography, nucleic acid sequencing, cancer diagnostics, and antibody engineering. He also regularly supports transactions, including conducting IP due diligence in connection with venture capital and private and public financing. Drawing from these experiences, Bu practices patent preparation and prosecution with the goal to maximize value in IP for companies at different stages, and always with future enforcement and litigation in mind.

Prior to entering the IP field, Bu did his postdoctoral fellowship at Novartis using high-throughput siRNA-based genetic screening to identify novel therapeutic targets for ovarian cancers. His Ph.D. research at the Children’s Hospital of Philadelphia focused on mechanisms of generating antigen receptor diversity and the immune repertoire (particularly V(D)J recombination), DNA damage response, and genetics and epigenetics of B cell and T cell development and malignant transformation.     

Experience

Bu Yin is senior counsel in the San Diego office of Wilson Sonsini Goodrich & Rosati, where his practice focuses on developing patent portfolios and providing strategic counseling in pharmaceuticals (particularly biologics), biotech tools (e.g., genomics, transcriptomics, and proteomics), agriculture and food (e.g., genetically modified insects as biopesticides), and other life sciences sectors.

Building on his immunology and molecular biology background, Bu works closely with companies developing vaccines, antibodies, RNA therapeutics (e.g., mRNAs, trans-splicing RNAs, and siRNAs), gene therapies (e.g., HSV, AAV, and non-viral vectors), cell therapies (e.g., CAR-T and stem cells), and antibiotics, among other therapeutic modalities. Bu is knowledgeable in immunoassays, PCRs, nucleic acid sample preparation and sequencing, analyte encoding/decoding, and multi-omics data analytics, particularly those for high-throughput, single-cell, spatial, and/or in situ analysis.

Bu has significant experience supporting patent litigation and Patent Office proceedings, including in connection with enzyme replacement therapy, transgenic plant as host for producing human proteins, chromatography, nucleic acid sequencing, cancer diagnostics, and antibody engineering. He also regularly supports transactions, including conducting IP due diligence in connection with venture capital and private and public financing. Drawing from these experiences, Bu practices patent preparation and prosecution with the goal to maximize value in IP for companies at different stages, and always with future enforcement and litigation in mind.

Prior to entering the IP field, Bu did his postdoctoral fellowship at Novartis using high-throughput siRNA-based genetic screening to identify novel therapeutic targets for ovarian cancers. His Ph.D. research at the Children’s Hospital of Philadelphia focused on mechanisms of generating antigen receptor diversity and the immune repertoire (particularly V(D)J recombination), DNA damage response, and genetics and epigenetics of B cell and T cell development and malignant transformation.     

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BioTools Innovator 2025 Capstone Event
Wilson Sonsini is proud to be an event sponsor for the Biotools Innovator Capstone Event on November 18th. The BioTools Innovator Capstone is the premier showcase for innovation in life science tools and diagnostics, bringing together leading pharma and biotech startups to present their groundbreaking technologies to a panel of judges, including Wilson Sonsini partners, Eric Hsu, Ingo Hardt, Marty Waters, and Bu Yin.
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