In 2020, following a move to Dallas, Texas, Allen formed Baden Law, where he continues to advise emerging and mature companies across a wide range of industries, including extensive work with technology and consumer products clients in the establishment, enhancement, enforcement and defense of their intellectual property rights, both domestically and internationally. Allen also works closely with local companies and investors in conducting due diligence, enhancing corporate and IP procedures, documenting investments and negotiating transactions.

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Relying on his many years of legal experience, business acumen​ and te​chnical expertise, Allen prides himself on his efficient, cost-effective and pragmatic approach to client service, which has helped him attract clients, some of whom he has represented for over 15 years. Allen's experience includes two seconding stints during which​ he managed legal practices for the world's largest comic book publisher and semiconductor company. Allen also has a long history of pro bono representatio​​n of a multinational environmental education organization and previously advised the nation's pre-eminent civil rights organi​z​ation on trademark matters.

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Allen has litigated patent and trademark infringement, unfair competition, copyright and contract matters before U.S. District and Appellate courts, the U.S. International Trade Commission, and the U.S. Patent and Trademark Office. Allen also has substantial experience in corporate asset acquisition and transfers, as well as the sale, acquisition and licensing of IP rights, including technology, multimedia, open source, software and character licensing.