Book excerpt: Stocked with drafting checklists and sample drafting language, documents and drawings, PLI's new Second Edition of How to Write a Patent Application helps you to get all the information from an inventor that is needed to prepare a solid patent application; claim an invention with sufficient breadth; claim an invention so that those elements that render the invention 'nonobivious' are clearly set forth in the claims; and claim an invention so that the PTO will issue a patent and its validity will be sustained by the courts.