For over 35 years, this bestselling, all-on-one guide has been helping inventors anticipate and overcome hurdles to patentability, write a clear patent application, prepare patent drawings of inventions, conduct a patent search online, and complete all forms required by the U.S. Patent and Trademark Office.

But the expert advice doesn't stop when the application is filed. Patent It Yourself also shows you how to protect your rights in foreign countries, deal with infringers, and market and license your invention.

The 20th edition is completely updated to reflect the latest implications of recent patent law reforms, including analysis of key court decisions.