Wentsler LLC is a patent law firm with patent professionals who have a wide range of technical skills and experience. This blend of backgrounds forms one of the hallmarks of our firm: the ability to provide clients with a high level of expertise and knowledge preparing and prosecuting patents before the United States Patent and Trademark Office. We have significant experience in virtually all areas of patent law, including patent preparation, patent prosecution, patent due diligence and providing opinions on patent infringement and validity. Key industries served include electrical, semiconductor, chemical, mechanical, electro-mechanical, optics, glass manufacturing and ceramic arts. Wentsler is active with respected international organizations and committees, giving us access to an extensive network of foreign associates that are highly qualified to pursue patent coverage in all major industrialized countries around the world.