Utility Patent in United States
Plain-English Law
Utility Patent as defined by Nolo’s Encyclopedia of Everyday Law (p. 437-455):
A patent issued for inventions that perform useful functions. Most patents issued by the U.S. Patent and Trademark Office (PTO) are utility patents.
Establishing Liability for Infringement of a Utility Patent
This section discusses generally the subject of Establishing Liability for Infringement of a Utility Patent, how to determine the facts essential to Establishing Liability for Infringement of a Utility Patent, and, to some extent, how to prove it in litigation and defense. Related topics are also addressed.