The world's bestselling guide to patenting your creation! Have a world-class idea? Ready to protect your invention from copycats? Then turn to the best resource available -- Patent It Yourself. Attorney David Pressman takes you through the entire patent process, providing scrupulously updated information and clear instructions to help you determine if you can patent your invention, understand patent law, evaluate the commercial potential of your idea, perform your own patent search, file a provisional patent application, prepare a formal patent application, conduct a patent search online, understand basic patent law, complete all forms required by the U.S. Patent and Trademark Office, file your application, modify your invention after filing. The book also includes important legal forms to help you preserve your rights when showing or selling your invention: nondisclosure agreement, patent assignment, prototype-maker agreement, joint-ownership agreement, and more. The 12th edition is completely revised with updated case law and patent regulations, updated filing information and new application examples.