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Cassidy Evaristo
Patent Agent
Patents and Innovations
San Diego
cevaristo@wsgr.com

D858-350-2260

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Cassidy K. Evaristo is a patent agent in the San Diego office of Wilson Sonsini Goodrich & Rosati, where she is a member of the patents and innovations practice. Leveraging her robust background in biochemistry and cell biology, Cassidy provides strategic intellectual property expertise to clients across various sectors such as RNA therapeutics, antibody-drug conjugates, proteomics, sustainable technology for waste transformation, and innovative ophthalmic pharmaceutical products.

With over a decade of experience in patent prosecution, Cassidy is actively involved in day-to-day patent prosecution, including the preparation and prosecution of patent applications, patent claim drafting, and office action response drafting. Her work has facilitated significant transactions involving late-stage biopharmaceutical companies and companies operating in the gene therapy sector.

Additionally, Cassidy assists with conducting IP diligence and patent landscape analyses, aiding her clients in navigating the intellectual property landscape and securing their IP assets.

Experience

Cassidy K. Evaristo is a patent agent in the San Diego office of Wilson Sonsini Goodrich & Rosati, where she is a member of the patents and innovations practice. Leveraging her robust background in biochemistry and cell biology, Cassidy provides strategic intellectual property expertise to clients across various sectors such as RNA therapeutics, antibody-drug conjugates, proteomics, sustainable technology for waste transformation, and innovative ophthalmic pharmaceutical products.

With over a decade of experience in patent prosecution, Cassidy is actively involved in day-to-day patent prosecution, including the preparation and prosecution of patent applications, patent claim drafting, and office action response drafting. Her work has facilitated significant transactions involving late-stage biopharmaceutical companies and companies operating in the gene therapy sector.

Additionally, Cassidy assists with conducting IP diligence and patent landscape analyses, aiding her clients in navigating the intellectual property landscape and securing their IP assets.

Education
  • B.S., Biochemistry and Cell Biology, University of California, San Diego

    Entrepreneurship & Innovation Minor

Admissions
  • U.S. Patent and Trademark Office
Credentials
Education
  • B.S., Biochemistry and Cell Biology, University of California, San Diego

    Entrepreneurship & Innovation Minor

Admissions
  • U.S. Patent and Trademark Office

Biological Sciences and Biotechnology

  • Antibody
  • Biochemistry
  • Bioconjugation
  • Biologics
  • Cancer therapeutics
  • Cell biology
  • Cell therapy
  • Cellular immunology
  • Genomics
  • MicroRNA (miRNA) research
  • Molecular biology

Therapeutics and Drug Discovery

  • Antimicrobial agents
  • CRISPR
  • Drug conjugates
  • Peptide therapeutics
  • RNA interference (RNAi)
  • Small molecules

Diagnostics and Medical Devices

  • Bioinformatic

Chemistry and Material Science

  • Catalysis
  • Chemistry
  • Polymers

Genomics and Data Analysis

  • Computational biology
  • Next-generation sequencing
  • Sequencing
  • shRNA

Miscellaneous

  • Ophthalmology
Technical Fluency

Biological Sciences and Biotechnology

  • Antibody
  • Biochemistry
  • Bioconjugation
  • Biologics
  • Cancer therapeutics
  • Cell biology
  • Cell therapy
  • Cellular immunology
  • Genomics
  • MicroRNA (miRNA) research
  • Molecular biology

Therapeutics and Drug Discovery

  • Antimicrobial agents
  • CRISPR
  • Drug conjugates
  • Peptide therapeutics
  • RNA interference (RNAi)
  • Small molecules

Diagnostics and Medical Devices

  • Bioinformatic

Chemistry and Material Science

  • Catalysis
  • Chemistry
  • Polymers

Genomics and Data Analysis

  • Computational biology
  • Next-generation sequencing
  • Sequencing
  • shRNA

Miscellaneous

  • Ophthalmology
Focus Areas
  • Patents and Innovations
Recent Insights
Client Highlights
Wilson Sonsini Advises Avidity Biosciences on Patent Matters Related to $600 Million Upsized Public Offering
On September 12, 2025, Avidity Biosciences, Inc., a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs™), announced the pricing of its upsized underwritten public offering of 15,000,000 shares of its common stock at a price to the public of $40.00 per share. All of the shares to be sold in the offering are to be sold by Avidity. The gross proceeds to Avidity from the offering, before deducting the underwriting discounts and commissions and other offering expenses, are expected to be $600 million. Wilson Sonsini Goodrich & Rosati is advising Avidity Biosciences on patent matters related to the transaction.
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Client Highlights
Wilson Sonsini Advises on Patent Matters Related to Verona’s FDA Approval
On June 26, 2024, Verona Pharma announced that the U.S. Food and Drug Administration approved Ohtuvayre (ensifentrine) for the maintenance treatment of chronic obstructive pulmonary disease (COPD) in adult patients. Ohtuvayre is the first inhaled product with a novel mechanism of action available for the maintenance treatment of COPD in more than 20 years. Wilson Sonsini Goodrich & Rosati advised Verona Pharma on patent matters.
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