Tamsen Barrett joined the Austin office in 2007. As a senior associate, she focuses her practice on intellectual property matters which include domestic and foreign patent prosecution, enforcement, and strategic development of patent portfolios. Tamsen's experience emphasizes biotechnology related matters, and her experience includes the areas of genetic engineering, gene therapy, molecular biotechnology assays, drug screening and targeting, biotechnology, renewable energy, clean energy technologies, organic chemistry, pharmaceutical development and medical devices. In addition to significant experience prosecuting patent applications before the United States Patent and Trademark Office, she has significant experience with the preparation of enforceability, validity, patentability, and freedom-to-operate opinions and provides due diligence review of intellectual property to companies and investors.