Find the best trademarks attorney serving Allegheny County. Find the best intellectual property attorney serving Allegheny County.William F. Lang IV, a registered patent lawyer with 26 years of experience protecting the inventions, trademarks, and creative works of his clients. Neil J. Friedrich is an Intellectual Property Attorney with expertise in the biomedical and biomaterials fields. He works with various aspects of IP law. Michael focuses his intellectual property practice on drafting and prosecuting patent and trademark applications. Pittsburgh has internationally renowned universities with worldclass engineering and legal programs, an excellent qualityoflife, high rates. Get free patent and trademark legal assistance. To apply for a patent, you must file an application and pay required fees. Please read the following disclaimer to complete your purchase.