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An experienced litigator and registered patent attorney, Richard Juang draws on a varied background spanning pharmaceuticals, life sciences, software, and emerging technologies to help clients navigate and litigate complex intellectual property issues.. As a partner in the firm’s Intellectual Property Practice Group, Richard regularly assists clients with patent, trademark, and copyright matters, as well as all types of intellectual property also handles Hatch-Watchman litigation, drawing on a bachelor’s degree in biomedical engineering to translate sophisticated medical and chemical concepts into winning legal strategies. His experience includes pre-trial preparation, drafting direct examination outlines for expert witnesses, handling Markman hearings, and trial assistance.. After earning his B.S. at Washington University in St. Louis, Richard continued at the University’s Law School and earned his J.D., serving with the Global Studies Law Review and being inducted into the Order of the Barristers upon graduation. He went on to earn his L.L.M. in Intellectual Property and Technology Law. Richard earned additional experience as a legal intern with the Illinois Third Judicial Circuit, where he focused on asbestos-related matters, and as a legal intern with the United States Attorney’s Office. During law school, he also interned for the Hon. E. Richard Webber in the U.S. District Court for the Eastern District of Missouri, where he focused on patent law, licensing, and infringement matters.

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Lynn Lehnert applies her extensive scientific background to the practice areas of intellectual property and toxic torts. She is a registered patent attorney with the U.S. Patent and Trademark Office, with experience prosecuting both patent and trademark applications. She is also a seasoned intellectual property and toxic tort litigator.. Lynn’s intellectual property practice focuses on prosecuting patent applications involving software, semiconductors, and e-commerce. Her toxic tort and environmental experience includes working on complex federal-state herbicide class actions, as well as asbestos matters.. Lynn is trained in biology, chemistry, and physics. While in law school, Lynn focused her studies on energy law, patent law, and the emerging issue of gene patents. She had the unique experience of working on the Human Genome Project for two years as a laboratory assistant. Her knowledge and technical skill bring a distinct advantage to clients in disputes involving complex scientific disputes, and enable her to communicate these issues effectively to clients and the court.. Lynn also frequently writes about asbestos litigation for Goldberg Segalla's award-winning Asbestos Case Tracker, which was recently named to the ABA Journal's prestigious Blawg 100 and named the Best Litigation Blog for 2016 by the Expert Institute in its annual legal blog contest.. As a law student intern, Lynn served as a Prosecutor for the City of Chicago Department of Law. She also held an externship with the U.S. Environmental Protection Agency where she worked on matters involving the Comprehensive Environmental Response, Compensation, and Recovery Act (CERCLA); Resource Conservation and Recovery Act (RCRA); Clean Water Act (CWA); and various federal regulations. Before entering private practice, she served as an Assistant Missouri Public Defender, handling a full caseload of felony, misdemeanor, and juvenile matters.

Kathleen Petrillo's practice is devoted to intellectual property law and, more specifically, to patent related issues, including the development, management and enforcement of worldwide patent portfolios. Ms. Petrillo has extensive experience in counseling pharmaceutical, biotechnology, chemical and food science companies, including Fortune 500 companies as well as start-up and emerging growth companies, universities, and venture capital firms. She works closely with her clients to protect their commercially important products and achieve their business objectives while helping them avoid infringement of competitors' patents.  She frequently prepares opinions relating to infringement and validity of pharmaceuticals, biopharmaceuticals, vaccines, herbicide formulations and generics, and advises her clients with respect to freedom to operate involving products with multi billion dollar annual sales. Ms. Petrillo also evaluates intellectual property portfolios in connection with venture capital and private equity financings, acquisitions and joint development initiatives by her clients. Ms. Petrillo has handled re-examination and reissue matters, and regularly works with foreign counsel in developing worldwide intellectual property protection and devising strategies for patent oppositions in foreign jurisdictions. Ms. Petrillo has also acted as in-house patent counsel for clients and has negotiated their license agreements and drafted other technology related agreements.  Ms. Petrillo represents clients including Monsanto Company, Baxter Healthcare Corporation, The Solae Company, Ilypsa, Relypsa, Allied Minds, Hemoshear, Theralogics, the University of Missouri, St. Louis University, and Washington University of St. Louis.

Registered Patent Attorney