Caitlin Thireault


Portland Office



Caitlin prepares and prosecutes U.S. and foreign patent applications primarily within our firm’s Biotechnology and Chemistry practice groups. With expertise in cell and molecular biology, biotechnology, and plant science, she has a versatile practice and prosecutes a wide variety of subject matter. Representative work includes immunotherapies, biologics, fusion proteins, immunogenic compositions, CRISPR and gene editing technologies, genetic markers, and agriculture-related technologies.  Caitlin also offers expertise in the niche practice of preparing and prosecuting plant patents.

Caitlin has a thorough understanding of the complex world of intellectual property that her clients must navigate. Her IP practice is informed by both legal expertise and hands-on experience.  Prior to joining Klarquist, Caitlin had over 10 years of experience at the bench, performing academic research in the field of cell and molecular biology. Her scientific curiosity and interest in plant science extends outside work. She enjoys spending time with her family outdoors and is an avid collector of rare and exotic plants.

Caitlin held a summer associateship with Klarquist in 2019 and joined the firm full time in 2020.

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